UPDATING revision 291976
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 1920151113: 20 Qlogic 24xx/25xx firmware images were updated from 5.5.0 to 7.3.0. 21 Kernel modules isp_2400_multi and isp_2500_multi were removed and 22 should be replaced with isp_2400 and isp_2500 modules respectively. 23 2420151026: 25 NTP has been upgraded to 4.2.8p4. 26 2720151025: 28 ALLOW_DEPRECATED_ATF_TOOLS/ATFFILE support has been removed from 29 atf.test.mk (included from bsd.test.mk). Please upgrade devel/atf 30 and devel/kyua to version 0.20+ and adjust any calling code to work 31 with Kyuafile and kyua. 32 3320150823: 34 The polarity of Pulse Per Second (PPS) capture events with the 35 uart(4) driver has been corrected. Prior to this change the PPS 36 "assert" event corresponded to the trailing edge of a positive PPS 37 pulse and the "clear" event was the leading edge of the next pulse. 38 39 As the width of a PPS pulse in a typical GPS receiver is on the 40 order of 1 millisecond, most users will not notice any significant 41 difference with this change. 42 43 Anyone who has compensated for the historical polarity reversal by 44 configuring a negative offset equal to the pulse width will need to 45 remove that workaround. 46 4720150822: 48 From legacy ata(4) driver was removed support for SATA controllers 49 supported by more functional drivers ahci(4), siis(4) and mvs(4). 50 Kernel modules ataahci and ataadaptec were removed completely, 51 replaced by ahci and mvs modules respectively. 52 5320150813: 54 10.2-RELEASE. 55 5620150731: 57 As ZFS requires more kernel stack pages than is the default on some 58 architectures e.g. i386, it now warns if KSTACK_PAGES is less than 59 ZFS_MIN_KSTACK_PAGES (which is 4 at the time of writing). 60 61 Please consider using 'options KSTACK_PAGES=X' where X is greater 62 than or equal to ZFS_MIN_KSTACK_PAGES i.e. 4 in such configurations. 63 6420150703: 65 The default Unbound configuration now enables remote control 66 using a local socket. Users who have already enabled the 67 local_unbound service should regenerate their configuration 68 by running "service local_unbound setup" as root. 69 7020150624: 71 An additional fix for the issue described in the 20150614 sendmail 72 entry below has been been committed in revision 284786. 73 7420150615: 75 The fix for the issue described in the 20150614 sendmail entry 76 below has been been committed in revision 284485. The work 77 around described in that entry is no longer needed unless the 78 default setting is overridden by a confDH_PARAMETERS configuration 79 setting of '5' or pointing to a 512 bit DH parameter file. 80 8120150614: 82 The import of openssl to address the FreeBSD-SA-15:10.openssl 83 security advisory includes a change which rejects handshakes 84 with DH parameters below 768 bits. sendmail releases prior 85 to 8.15.2 (not yet released), defaulted to a 512 bit 86 DH parameter setting for client connections. To work around 87 this interoperability, sendmail can be configured to use a 88 2048 bit DH parameter by: 89 90 1. Edit /etc/mail/`hostname`.mc 91 2. If a setting for confDH_PARAMETERS does not exist or 92 exists and is set to a string beginning with '5', 93 replace it with '2'. 94 3. If a setting for confDH_PARAMETERS exists and is set to 95 a file path, create a new file with: 96 openssl dhparam -out /path/to/file 2048 97 4. Rebuild the .cf file: 98 cd /etc/mail/; make; make install 99 5. Restart sendmail: 100 cd /etc/mail/; make restart 101 102 A sendmail patch is coming, at which time this file will be 103 updated. 104 10520150601: 106 chmod, chflags, chown and chgrp now affect symlinks in -R mode as 107 defined in symlink(7); previously symlinks were silently ignored. 108 10920150430: 110 The const qualifier has been removed from iconv(3) to comply with 111 POSIX. The ports tree is aware of this from r384038 onwards. 112 11320141215: 114 At svn r275807, The default linux compat kernel ABI has been adjusted 115 to 2.6.18 in support of the linux-c6 compat ports infrastructure 116 update. If you wish to continue using the linux-f10 compat ports, 117 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are 118 encouraged to update their linux-compat packages to linux-c6 during 119 their next update cycle. 120 121 See ports/UPDATING 20141209 and 20141215 on migration to CentOS 6 ports. 122 12320141205: 124 pjdfstest has been integrated into kyua as an opt-in test suite. 125 Please see share/doc/pjdfstest/README for a more details on how to 126 execute it. 127 12820141118: 129 10.1-RELEASE. 130 13120140904: 132 The ofwfb driver, used to provide a graphics console on PowerPC when 133 using vt(4), no longer allows mmap() of all of physical memory. This 134 will prevent Xorg on PowerPC with some ATI graphics cards from 135 initializing properly unless x11-servers/xorg-server is updated to 136 1.12.4_8 or newer. 137 13820140831: 139 The libatf-c and libatf-c++ major versions were downgraded to 0 and 140 1 respectively to match the upstream numbers. They were out of 141 sync because, when they were originally added to FreeBSD, the 142 upstream versions were not respected. These libraries are private 143 and not yet built by default, so renumbering them should be a 144 non-issue. However, unclean source trees will yield broken test 145 programs once the operator executes "make delete-old-libs" after a 146 "make installworld". 147 148 Additionally, the atf-sh binary was made private by moving it into 149 /usr/libexec/. Already-built shell test programs will keep the 150 path to the old binary so they will break after "make delete-old" 151 is run. 152 153 If you are using WITH_TESTS=yes (not the default), wipe the object 154 tree and rebuild from scratch to prevent spurious test failures. 155 This is only needed once: the misnumbered libraries and misplaced 156 binaries have been added to OptionalObsoleteFiles.inc so they will 157 be removed during a clean upgrade. 158 15920140814: 160 The ixgbe tunables now match their sysctl counterparts, for example: 161 hw.ixgbe.enable_aim => hw.ix.enable_aim 162 Anyone using ixgbe tunables should ensure they update /boot/loader.conf. 163 16420140801: 165 The NFSv4.1 server committed by r269398 changes the internal 166 function call interfaces used between the NFS and krpc modules. 167 As such, __FreeBSD_version was bumped. 168 16920140729: 170 The default unbound configuration has been modified to address 171 issues with reverse lookups on networks that use private 172 address ranges. If you use the local_unbound service, run 173 "service local_unbound setup" as root to regenerate your 174 configuration, then "service local_unbound reload" to load the 175 new configuration. 176 17720140717: 178 It is no longer necessary to include the dwarf version in your DEBUG 179 options in your kernel config file. The bug that required it to be 180 placed in the config file has bene fixed. DEBUG should now just 181 contain -g. The build system will automatically update things 182 to do the right thing. 183 18420140715: 185 Several ABI breaking changes were merged to CTL and new iSCSI code. 186 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and 187 iscsictl need to be rebuilt to work with a new kernel. 188 18920140708: 190 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 191 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 192 which differs from the behaviour controlled by this knob.) 193 19420140608: 195 On i386 and amd64 systems, the onifconsole flag is now set by default 196 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 197 as a login TTY if it is set in the bootloader as an active kernel 198 console. No changes in behavior should result otherwise. To revert to 199 the previous behavior, set ttyu0 to "off" in /etc/ttys. 200 20120140512: 202 Clang and llvm have been upgraded to 3.4.1 release. 203 20420140321: 205 Clang and llvm have been upgraded to 3.4 release. 206 20720140306: 208 If a Makefile in a tests/ directory was auto-generating a Kyuafile 209 instead of providing an explicit one, this would prevent such 210 Makefile from providing its own Kyuafile in the future during 211 NO_CLEAN builds. This has been fixed in the Makefiles but manual 212 intervention is needed to clean an objdir if you use NO_CLEAN: 213 # find /usr/obj -name Kyuafile | xargs rm -f 214 21520140303: 216 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 217 capability mode support. Please note that enabling the feature in 218 kernel is still highly recommended. 219 22020140227: 221 OpenSSH is now built with sandbox support, and will use sandbox as 222 the default privilege separation method. This requires Capsicum 223 capability mode support in kernel. 224 22520140216: 226 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 227 been deprecated and will not be part of FreeBSD 11.0 and later 228 releases. If you use this driver, please consider switching to 229 the nfe(4) driver instead. 230 23120140120: 232 10.0-RELEASE. 233 23420131216: 235 The behavior of gss_pseudo_random() for the krb5 mechanism 236 has changed, for applications requesting a longer random string 237 than produced by the underlying enctype's pseudo-random() function. 238 In particular, the random string produced from a session key of 239 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 240 be different at the 17th octet and later, after this change. 241 The counter used in the PRF+ construction is now encoded as a 242 big-endian integer in accordance with RFC 4402. 243 __FreeBSD_version is bumped to 1000701. 244 24520131108: 246 The WITHOUT_ATF build knob has been removed and its functionality 247 has been subsumed into the more generic WITHOUT_TESTS. If you were 248 using the former to disable the build of the ATF libraries, you 249 should change your settings to use the latter. 250 25120131031: 252 The default version of mtree is nmtree which is obtained from 253 NetBSD. The output is generally the same, but may vary 254 slightly. If you found you need identical output adding 255 "-F freebsd9" to the command line should do the trick. For the 256 time being, the old mtree is available as fmtree. 257 25820131014: 259 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 260 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 261 1.1.4_8 and verify bsdyml not linked in, before running "make 262 delete-old-libs": 263 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 264 or 265 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 266 26720131010: 268 The rc.d/jail script has been updated to support jail(8) 269 configuration file. The "jail_<jname>_*" rc.conf(5) variables 270 for per-jail configuration are automatically converted to 271 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 272 This is transparently backward compatible. See below about some 273 incompatibilities and rc.conf(5) manual page for more details. 274 275 These variables are now deprecated in favor of jail(8) configuration 276 file. One can use "rc.d/jail config <jname>" command to generate 277 a jail(8) configuration file in /var/run/jail.<jname>.conf without 278 running the jail(8) utility. The default pathname of the 279 configuration file is /etc/jail.conf and can be specified by 280 using $jail_conf or $jail_<jname>_conf variables. 281 282 Please note that jail_devfs_ruleset accepts an integer at 283 this moment. Please consider to rewrite the ruleset name 284 with an integer. 285 28620130930: 287 BIND has been removed from the base system. If all you need 288 is a local resolver, simply enable and start the local_unbound 289 service instead. Otherwise, several versions of BIND are 290 available in the ports tree. The dns/bind99 port is one example. 291 292 With this change, nslookup(1) and dig(1) are no longer in the base 293 system. Users should instead use host(1) and drill(1) which are 294 in the base system. Alternatively, nslookup and dig can 295 be obtained by installing the dns/bind-tools port. 296 29720130916: 298 With the addition of unbound(8), a new unbound user is now 299 required during installworld. "mergemaster -p" can be used to 300 add the user prior to installworld, as documented in the handbook. 301 30220130911: 303 OpenSSH is now built with DNSSEC support, and will by default 304 silently trust signed SSHFP records. This can be controlled with 305 the VerifyHostKeyDNS client configuration setting. DNSSEC support 306 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 307 30820130906: 309 The GNU Compiler Collection and C++ standard library (libstdc++) 310 are no longer built by default on platforms where clang is the system 311 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 312 options in src.conf. 313 31420130905: 315 The PROCDESC kernel option is now part of the GENERIC kernel 316 configuration and is required for the rwhod(8) to work. 317 If you are using custom kernel configuration, you should include 318 'options PROCDESC'. 319 32020130905: 321 The API and ABI related to the Capsicum framework was modified 322 in backward incompatible way. The userland libraries and programs 323 have to be recompiled to work with the new kernel. This includes the 324 following libraries and programs, but the whole buildworld is 325 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 326 kdump, procstat, rwho, rwhod, uniq. 327 32820130903: 329 AES-NI intrinsic support has been added to gcc. The AES-NI module 330 has been updated to use this support. A new gcc is required to build 331 the aesni module on both i386 and amd64. 332 33320130821: 334 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 335 Thus "device padlock_rng" and "device rdrand_rng" should be 336 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 337 33820130813: 339 WITH_ICONV has been split into two feature sets. WITH_ICONV now 340 enables just the iconv* functionality and is now on by default. 341 WITH_LIBICONV_COMPAT enables the libiconv api and link time 342 compatability. Set WITHOUT_ICONV to build the old way. 343 If you have been using WITH_ICONV before, you will very likely 344 need to turn on WITH_LIBICONV_COMPAT. 345 34620130806: 347 INVARIANTS option now enables DEBUG for code with OpenSolaris and 348 Illumos origin, including ZFS. If you have INVARIANTS in your 349 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 350 explicitly. 351 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 352 locks if WITNESS option was set. Because that generated a lot of 353 witness(9) reports and all of them were believed to be false 354 positives, this is no longer done. New option OPENSOLARIS_WITNESS 355 can be used to achieve the previous behavior. 356 35720130806: 358 Timer values in IPv6 data structures now use time_uptime instead 359 of time_second. Although this is not a user-visible functional 360 change, userland utilities which directly use them---ndp(8), 361 rtadvd(8), and rtsold(8) in the base system---need to be updated 362 to r253970 or later. 363 36420130802: 365 find -delete can now delete the pathnames given as arguments, 366 instead of only files found below them or if the pathname did 367 not contain any slashes. Formerly, the following error message 368 would result: 369 370 find: -delete: <path>: relative path potentially not safe 371 372 Deleting the pathnames given as arguments can be prevented 373 without error messages using -mindepth 1 or by changing 374 directory and passing "." as argument to find. This works in the 375 old as well as the new version of find. 376 37720130726: 378 Behavior of devfs rules path matching has been changed. 379 Pattern is now always matched against fully qualified devfs 380 path and slash characters must be explicitly matched by 381 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 382 subdirectories must be reviewed. 383 38420130716: 385 The default ARM ABI has changed to the ARM EABI. The old ABI is 386 incompatible with the ARM EABI and all programs and modules will 387 need to be rebuilt to work with a new kernel. 388 389 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 390 391 NOTE: Support for the old ABI will be removed in the future and 392 users are advised to upgrade. 393 39420130709: 395 pkg_install has been disconnected from the build if you really need it 396 you should add WITH_PKGTOOLS in your src.conf(5). 397 39820130709: 399 Most of network statistics structures were changed to be able 400 keep 64-bits counters. Thus all tools, that work with networking 401 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 402 40320130618: 404 Fix a bug that allowed a tracing process (e.g. gdb) to write 405 to a memory-mapped file in the traced process's address space 406 even if neither the traced process nor the tracing process had 407 write access to that file. 408 40920130615: 410 CVS has been removed from the base system. An exact copy 411 of the code is available from the devel/cvs port. 412 41320130613: 414 Some people report the following error after the switch to bmake: 415 416 make: illegal option -- J 417 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 418 ... 419 *** [buildworld] Error code 2 420 421 this likely due to an old instance of make in 422 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 423 which src/Makefile will use that blindly, if it exists, so if 424 you see the above error: 425 426 rm -rf `make -V MAKEPATH` 427 428 should resolve it. 429 43020130516: 431 Use bmake by default. 432 Whereas before one could choose to build with bmake via 433 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 434 make. The goal is to remove these knobs for 10-RELEASE. 435 436 It is worth noting that bmake (like gmake) treats the command 437 line as the unit of failure, rather than statements within the 438 command line. Thus '(cd some/where && dosomething)' is safer 439 than 'cd some/where; dosomething'. The '()' allows consistent 440 behavior in parallel build. 441 44220130429: 443 Fix a bug that allows NFS clients to issue READDIR on files. 444 44520130426: 446 The WITHOUT_IDEA option has been removed because 447 the IDEA patent expired. 448 44920130426: 450 The sysctl which controls TRIM support under ZFS has been renamed 451 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 452 enabled by default. 453 45420130425: 455 The mergemaster command now uses the default MAKEOBJDIRPREFIX 456 rather than creating it's own in the temporary directory in 457 order allow access to bootstrapped versions of tools such as 458 install and mtree. When upgrading from version of FreeBSD where 459 the install command does not support -l, you will need to 460 install a new mergemaster command if mergemaster -p is required. 461 This can be accomplished with the command (cd src/usr.sbin/mergemaster 462 && make install). 463 46420130404: 465 Legacy ATA stack, disabled and replaced by new CAM-based one since 466 FreeBSD 9.0, completely removed from the sources. Kernel modules 467 atadisk and atapi*, user-level tools atacontrol and burncd are 468 removed. Kernel option `options ATA_CAM` is now permanently enabled 469 and removed. 470 47120130319: 472 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 473 and socketpair(2). Software, in particular Kerberos, may 474 automatically detect and use these during building. The resulting 475 binaries will not work on older kernels. 476 47720130308: 478 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 479 information, see the respective 20130304 entry). 480 48120130304: 482 Recent commits to callout(9) changed the size of struct callout, 483 so the KBI is probably heavily disturbed. Also, some functions 484 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 485 by macros. Every kernel module using it won't load, so rebuild 486 is requested. 487 488 The ctl device has been re-enabled in GENERIC for i386 and amd64, 489 but does not initialize by default (because of the new CTL_DISABLE 490 option) to save memory. To re-enable it, remove the CTL_DISABLE 491 option from the kernel config file or set kern.cam.ctl.disable=0 492 in /boot/loader.conf. 493 49420130301: 495 The ctl device has been disabled in GENERIC for i386 and amd64. 496 This was done due to the extra memory being allocated at system 497 initialisation time by the ctl driver which was only used if 498 a CAM target device was created. This makes a FreeBSD system 499 unusable on 128MB or less of RAM. 500 50120130208: 502 A new compression method (lz4) has been merged to -HEAD. Please 503 refer to zpool-features(7) for more information. 504 505 Please refer to the "ZFS notes" section of this file for information 506 on upgrading boot ZFS pools. 507 50820130129: 509 A BSD-licensed patch(1) variant has been added and is installed 510 as bsdpatch, being the GNU version the default patch. 511 To inverse the logic and use the BSD-licensed one as default, 512 while having the GNU version installed as gnupatch, rebuild 513 and install world with the WITH_BSD_PATCH knob set. 514 51520130121: 516 Due to the use of the new -l option to install(1) during build 517 and install, you must take care not to directly set the INSTALL 518 make variable in your /etc/make.conf, /etc/src.conf, or on the 519 command line. If you wish to use the -C flag for all installs 520 you may be able to add INSTALL+=-C to /etc/make.conf or 521 /etc/src.conf. 522 52320130118: 524 The install(1) option -M has changed meaning and now takes an 525 argument that is a file or path to append logs to. In the 526 unlikely event that -M was the last option on the command line 527 and the command line contained at least two files and a target 528 directory the first file will have logs appended to it. The -M 529 option served little practical purpose in the last decade so its 530 use is expected to be extremely rare. 531 53220121223: 533 After switching to Clang as the default compiler some users of ZFS 534 on i386 systems started to experience stack overflow kernel panics. 535 Please consider using 'options KSTACK_PAGES=4' in such configurations. 536 53720121222: 538 GEOM_LABEL now mangles label names read from file system metadata. 539 Mangling affect labels containing spaces, non-printable characters, 540 '%' or '"'. Device names in /etc/fstab and other places may need to 541 be updated. 542 54320121217: 544 By default, only the 10 most recent kernel dumps will be saved. To 545 restore the previous behaviour (no limit on the number of kernel dumps 546 stored in the dump directory) add the following line to /etc/rc.conf: 547 548 savecore_flags="" 549 55020121201: 551 With the addition of auditdistd(8), a new auditdistd user is now 552 required during installworld. "mergemaster -p" can be used to 553 add the user prior to installworld, as documented in the handbook. 554 55520121117: 556 The sin6_scope_id member variable in struct sockaddr_in6 is now 557 filled by the kernel before passing the structure to the userland via 558 sysctl or routing socket. This means the KAME-specific embedded scope 559 id in sin6_addr.s6_addr[2] is always cleared in userland application. 560 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 561 __FreeBSD_version is bumped to 1000025. 562 56320121105: 564 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 565 This means that the world and kernel will be compiled with clang 566 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 567 and /usr/bin/cpp. To disable this behavior and revert to building 568 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 569 of current may need to bootstrap WITHOUT_CLANG first if the clang 570 build fails (its compatibility window doesn't extend to the 9 stable 571 branch point). 572 57320121102: 574 The IPFIREWALL_FORWARD kernel option has been removed. Its 575 functionality now turned on by default. 576 57720121023: 578 The ZERO_COPY_SOCKET kernel option has been removed and 579 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 580 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 581 mechanism which is not safe and may result in kernel crashes. 582 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 583 driver supports disposeable external page sized mbuf storage. 584 Proper replacements for both zero-copy mechanisms are under 585 consideration and will eventually lead to complete removal 586 of the two kernel options. 587 58820121023: 589 The IPv4 network stack has been converted to network byte 590 order. The following modules need to be recompiled together 591 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 592 pf(4), ipfw(4), ng_ipfw(4), stf(4). 593 59420121022: 595 Support for non-MPSAFE filesystems was removed from VFS. The 596 VFS_VERSION was bumped, all filesystem modules shall be 597 recompiled. 598 59920121018: 600 All the non-MPSAFE filesystems have been disconnected from 601 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 602 portalfs, smbfs, xfs. 603 60420121016: 605 The interface cloning API and ABI has changed. The following 606 modules need to be recompiled together with kernel: 607 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 608 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 609 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 610 61120121015: 612 The sdhci driver was split in two parts: sdhci (generic SD Host 613 Controller logic) and sdhci_pci (actual hardware driver). 614 No kernel config modifications are required, but if you 615 load sdhc as a module you must switch to sdhci_pci instead. 616 61720121014: 618 Import the FUSE kernel and userland support into base system. 619 62020121013: 621 The GNU sort(1) program has been removed since the BSD-licensed 622 sort(1) has been the default for quite some time and no serious 623 problems have been reported. The corresponding WITH_GNU_SORT 624 knob has also gone. 625 62620121006: 627 The pfil(9) API/ABI for AF_INET family has been changed. Packet 628 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 629 with new kernel. 630 63120121001: 632 The net80211(4) ABI has been changed to allow for improved driver 633 PS-POLL and power-save support. All wireless drivers need to be 634 recompiled to work with the new kernel. 635 63620120913: 637 The random(4) support for the VIA hardware random number 638 generator (`PADLOCK') is no longer enabled unconditionally. 639 Add the padlock_rng device in the custom kernel config if 640 needed. The GENERIC kernels on i386 and amd64 do include the 641 device, so the change only affects the custom kernel 642 configurations. 643 64420120908: 645 The pf(4) packet filter ABI has been changed. pfctl(8) and 646 snmp_pf module need to be recompiled to work with new kernel. 647 64820120828: 649 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 650 to -HEAD. Pools that have empty_bpobj in active state can not be 651 imported read-write with ZFS implementations that do not support 652 this feature. For more information read the zpool-features(5) 653 manual page. 654 65520120727: 656 The sparc64 ZFS loader has been changed to no longer try to auto- 657 detect ZFS providers based on diskN aliases but now requires these 658 to be explicitly listed in the OFW boot-device environment variable. 659 66020120712: 661 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 662 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 663 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 664 66520120712: 666 The following sysctls and tunables have been renamed for consistency 667 with other variables: 668 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 669 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 670 67120120628: 672 The sort utility has been replaced with BSD sort. For now, GNU sort 673 is also available as "gnusort" or the default can be set back to 674 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 675 installed as "bsdsort". 676 67720120611: 678 A new version of ZFS (pool version 5000) has been merged to -HEAD. 679 Starting with this version the old system of ZFS pool versioning 680 is superseded by "feature flags". This concept enables forward 681 compatibility against certain future changes in functionality of ZFS 682 pools. The first read-only compatible "feature flag" for ZFS pools 683 is named "com.delphix:async_destroy". For more information 684 read the new zpool-features(5) manual page. 685 Please refer to the "ZFS notes" section of this file for information 686 on upgrading boot ZFS pools. 687 68820120417: 689 The malloc(3) implementation embedded in libc now uses sources imported 690 as contrib/jemalloc. The most disruptive API change is to 691 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 692 delete it prior to installworld, and optionally re-create it using the 693 new format after rebooting. See malloc.conf(5) for details 694 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 695 NAMESPACE section). 696 69720120328: 698 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 699 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 700 now spelled mips. This is to aid compatibility with third-party 701 software that expects this naming scheme in uname(3). Little-endian 702 settings are unchanged. If you are updating a big-endian mips64 machine 703 from before this change, you may need to set MACHINE_ARCH=mips64 in 704 your environment before the new build system will recognize your machine. 705 70620120306: 707 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 708 platforms. 709 71020120229: 711 Now unix domain sockets behave "as expected" on nullfs(5). Previously 712 nullfs(5) did not pass through all behaviours to the underlying layer, 713 as a result if we bound to a socket on the lower layer we could connect 714 only to the lower path; if we bound to the upper layer we could connect 715 only to the upper path. The new behavior is one can connect to both the 716 lower and the upper paths regardless what layer path one binds to. 717 71820120211: 719 The getifaddrs upgrade path broken with 20111215 has been restored. 720 If you have upgraded in between 20111215 and 20120209 you need to 721 recompile libc again with your kernel. You still need to recompile 722 world to be able to configure CARP but this restriction already 723 comes from 20111215. 724 72520120114: 726 The set_rcvar() function has been removed from /etc/rc.subr. All 727 base and ports rc.d scripts have been updated, so if you have a 728 port installed with a script in /usr/local/etc/rc.d you can either 729 hand-edit the rcvar= line, or reinstall the port. 730 731 An easy way to handle the mass-update of /etc/rc.d: 732 rm /etc/rc.d/* && mergemaster -i 733 73420120109: 735 panic(9) now stops other CPUs in the SMP systems, disables interrupts 736 on the current CPU and prevents other threads from running. 737 This behavior can be reverted using the kern.stop_scheduler_on_panic 738 tunable/sysctl. 739 The new behavior can be incompatible with kern.sync_on_panic. 740 74120111215: 742 The carp(4) facility has been changed significantly. Configuration 743 of the CARP protocol via ifconfig(8) has changed, as well as format 744 of CARP events submitted to devd(8) has changed. See manual pages 745 for more information. The arpbalance feature of carp(4) is currently 746 not supported anymore. 747 748 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 749 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 750 need to be recompiled. 751 75220111122: 753 The acpi_wmi(4) status device /dev/wmistat has been renamed to 754 /dev/wmistat0. 755 75620111108: 757 The option VFS_ALLOW_NONMPSAFE option has been added in order to 758 explicitely support non-MPSAFE filesystems. 759 It is on by default for all supported platform at this present 760 time. 761 76220111101: 763 The broken amd(4) driver has been replaced with esp(4) in the amd64, 764 i386 and pc98 GENERIC kernel configuration files. 765 76620110930: 767 sysinstall has been removed 768 76920110923: 770 The stable/9 branch created in subversion. This corresponds to the 771 RELENG_9 branch in CVS. 772 77320110913: 774 This commit modifies vfs_register() so that it uses a hash 775 calculation to set vfc_typenum, which is enabled by default. 776 The first time a system is booted after this change, the 777 vfc_typenum values will change for all file systems. The 778 main effect of this is a change to the NFS server file handles 779 for file systems that use vfc_typenum in their fsid, such as ZFS. 780 It will, however, prevent vfc_typenum from changing when file 781 systems are loaded in a different order for subsequent reboots. 782 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 783 until you are ready to remount all NFS clients after a reboot. 784 78520110828: 786 Bump the shared library version numbers for libraries that 787 do not use symbol versioning, have changed the ABI compared 788 to stable/8 and which shared library version was not bumped. 789 Done as part of 9.0-RELEASE cycle. 790 79120110815: 792 During the merge of Capsicum features, the fget(9) KPI was modified. 793 This may require the rebuilding of out-of-tree device drivers -- 794 issues have been reported specifically with the nVidia device driver. 795 __FreeBSD_version is bumped to 900041. 796 797 Also, there is a period between 20110811 and 20110814 where the 798 special devices /dev/{stdin,stdout,stderr} did not work correctly. 799 Building world from a kernel during that window may not work. 800 80120110628: 802 The packet filter (pf) code has been updated to OpenBSD 4.5. 803 You need to update userland tools to be in sync with kernel. 804 This update breaks backward compatibility with earlier pfsync(4) 805 versions. Care must be taken when updating redundant firewall setups. 806 80720110608: 808 The following sysctls and tunables are retired on x86 platforms: 809 machdep.hlt_cpus 810 machdep.hlt_logical_cpus 811 The following sysctl is retired: 812 machdep.hyperthreading_allowed 813 The sysctls were supposed to provide a way to dynamically offline and 814 online selected CPUs on x86 platforms, but the implementation has not 815 been reliable especially with SCHED_ULE scheduler. 816 machdep.hyperthreading_allowed tunable is still available to ignore 817 hyperthreading CPUs at OS level. 818 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 819 where X is an APIC ID of a CPU. Be advised, though, that disabling 820 CPUs in non-uniform fashion will result in non-uniform topology and 821 may lead to sub-optimal system performance with SCHED_ULE, which is 822 a default scheduler. 823 82420110607: 825 cpumask_t type is retired and cpuset_t is used in order to describe 826 a mask of CPUs. 827 82820110531: 829 Changes to ifconfig(8) for dynamic address family detection mandate 830 that you are running a kernel of 20110525 or later. Make sure to 831 follow the update procedure to boot a new kernel before installing 832 world. 833 83420110513: 835 Support for sun4v architecture is officially dropped 836 83720110503: 838 Several KPI breaking changes have been committed to the mii(4) layer, 839 the PHY drivers and consequently some Ethernet drivers using mii(4). 840 This means that miibus.ko and the modules of the affected Ethernet 841 drivers need to be recompiled. 842 843 Note to kernel developers: Given that the OUI bit reversion problem 844 was fixed as part of these changes all mii(4) commits related to OUIs, 845 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 846 handling, no longer can be merged verbatim to stable/8 and previous 847 branches. 848 84920110430: 850 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 851 into their kernel configurations along with 'device pci'. 852 85320110427: 854 The default NFS client is now the new NFS client, so fstype "newnfs" 855 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 856 Although mounts via fstype "nfs" will usually work without userland 857 changes, it is recommended that the mount(8) and mount_nfs(8) 858 commands be rebuilt from sources and that a link to mount_nfs called 859 mount_oldnfs be created. The new client is compiled into the 860 kernel with "options NFSCL" and this is needed for diskless root 861 file systems. The GENERIC kernel configs have been changed to use 862 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 863 To use the regular/old client, you can "mount -t oldnfs ...". For 864 a diskless root file system, you must also include a line like: 865 866 vfs.root.mountfrom="oldnfs:" 867 868 in the boot/loader.conf on the root fs on the NFS server to make 869 a diskless root fs use the old client. 870 87120110424: 872 The GENERIC kernels for all architectures now default to the new 873 CAM-based ATA stack. It means that all legacy ATA drivers were 874 removed and replaced by respective CAM drivers. If you are using 875 ATA device names in /etc/fstab or other places, make sure to update 876 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 877 where 'Y's are the sequential numbers starting from zero for each type 878 in order of detection, unless configured otherwise with tunables, 879 see cam(4)). There will be symbolic links created in /dev/ to map 880 old adX devices to the respective adaY. They should provide basic 881 compatibility for file systems mounting in most cases, but they do 882 not support old user-level APIs and do not have respective providers 883 in GEOM. Consider using updated management tools with new device names. 884 885 It is possible to load devices ahci, ata, siis and mvs as modules, 886 but option ATA_CAM should remain in kernel configuration to make ata 887 module work as CAM driver supporting legacy ATA controllers. Device ata 888 still can be used in modular fashion (atacore + ...). Modules atadisk 889 and atapi* are not used and won't affect operation in ATA_CAM mode. 890 Note that to use CAM-based ATA kernel should include CAM devices 891 scbus, pass, da (or explicitly ada), cd and optionally others. All of 892 them are parts of the cam module. 893 894 ataraid(4) functionality is now supported by the RAID GEOM class. 895 To use it you can load geom_raid kernel module and use graid(8) tool 896 for management. Instead of /dev/arX device names, use /dev/raid/rX. 897 898 No kernel config options or code have been removed, so if a problem 899 arises, please report it and optionally revert to the old ATA stack. 900 In order to do it you can remove from the kernel config: 901 options ATA_CAM 902 device ahci 903 device mvs 904 device siis 905 , and instead add back: 906 device atadisk # ATA disk drives 907 device ataraid # ATA RAID drives 908 device atapicd # ATAPI CDROM drives 909 device atapifd # ATAPI floppy drives 910 device atapist # ATAPI tape drives 911 91220110423: 913 The default NFS server has been changed to the new server, which 914 was referred to as the experimental server. If you need to switch 915 back to the old NFS server, you must now put the "-o" option on 916 both the mountd and nfsd commands. This can be done using the 917 mountd_flags and nfs_server_flags rc.conf variables until an 918 update to the rc scripts is committed, which is coming soon. 919 92020110418: 921 The GNU Objective-C runtime library (libobjc), and other Objective-C 922 related components have been removed from the base system. If you 923 require an Objective-C library, please use one of the available ports. 924 92520110331: 926 ath(4) has been split into bus- and device- modules. if_ath contains 927 the HAL, the TX rate control and the network device code. if_ath_pci 928 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 929 contains the AHB glue. Users need to load both if_ath_pci and if_ath 930 in order to use ath on everything else. 931 932 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 933 need to load if_ath and if_ath_pci for ath(4) operation. 934 93520110314: 936 As part of the replacement of sysinstall, the process of building 937 release media has changed significantly. For details, please re-read 938 release(7), which has been updated to reflect the new build process. 939 94020110218: 941 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 942 is the last available version under GPLv2. It brings a number of new 943 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 944 4.1 and SSE 4.2), better support for powerpc64, a number of new 945 directives, and lots of other small improvements. See the ChangeLog 946 file in contrib/binutils for the full details. 947 94820110218: 949 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 950 compliant, and will now use half of hash for authentication. 951 This will break interoperability with all stacks (including all 952 actual FreeBSD versions) who implement 953 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 954 authentication). 955 The only workaround with such peers is to use another HMAC 956 algorithm for IPsec ("phase 2") authentication. 957 95820110207: 959 Remove the uio_yield prototype and symbol. This function has 960 been misnamed since it was introduced and should not be 961 globally exposed with this name. The equivalent functionality 962 is now available using kern_yield(curthread->td_user_pri). 963 The function remains undocumented. 964 96520110112: 966 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 967 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 968 for scalar sysctls is defined but disabled. Code that needs 969 UQUAD to pass the type checking that must compile on older 970 systems where the define is not present can check against 971 __FreeBSD_version >= 900030. 972 973 The system dialog(1) has been replaced with a new version previously 974 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 975 with the previous version, but the libdialog associated with it has 976 a largely incompatible API. As such, the original version of libdialog 977 will be kept temporarily as libodialog, until its base system consumers 978 are replaced or updated. Bump __FreeBSD_version to 900030. 979 98020110103: 981 If you are trying to run make universe on a -stable system, and you get 982 the following warning: 983 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 984 unknown. config(8) likely too old." 985 or something similar to it, then you must upgrade your -stable system 986 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 987 stable/8) or build the config from the latest stable/8 branch and 988 install it on your system. 989 990 Prior to this date, building a current universe on 8-stable system from 991 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 992 error in the first kernel build phase. A new config on those old 993 systems will fix that problem for older versions of -current. 994 99520101228: 996 The TCP stack has been modified to allow Khelp modules to interact with 997 it via helper hook points and store per-connection data in the TCP 998 control block. Bump __FreeBSD_version to 900029. User space tools that 999 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 1000 be recompiled. 1001 100220101114: 1003 Generic IEEE 802.3 annex 31B full duplex flow control support has been 1004 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 1005 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 1006 to take advantage of it instead of using custom implementations. This 1007 means that these drivers now no longer unconditionally advertise 1008 support for flow control but only do so if flow control is a selected 1009 media option. This was implemented in the generic support that way in 1010 order to allow flow control to be switched on and off via ifconfig(8) 1011 with the PHY specific default to typically off in order to protect 1012 from unwanted effects. Consequently, if you used flow control with 1013 one of the above mentioned drivers you now need to explicitly enable 1014 it, for example via: 1015 ifconfig bge0 media auto mediaopt flowcontrol 1016 1017 Along with the above mentioned changes generic support for setting 1018 1000baseT master mode also has been added and brgphy(4), ciphy(4), 1019 e1000phy(4) as well as ip1000phy(4) have been converted to take 1020 advantage of it. This means that these drivers now no longer take the 1021 link0 parameter for selecting master mode but the master media option 1022 has to be used instead, for example like in the following: 1023 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 1024 1025 Selection of master mode now is also available with all other PHY 1026 drivers supporting 1000baseT. 1027 102820101111: 1029 The TCP stack has received a significant update to add support for 1030 modularised congestion control and generally improve the clarity of 1031 congestion control decisions. Bump __FreeBSD_version to 900025. User 1032 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 1033 sockstat) need to be recompiled. 1034 103520101002: 1036 The man(1) utility has been replaced by a new version that no longer 1037 uses /etc/manpath.config. Please consult man.conf(5) for how to 1038 migrate local entries to the new format. 1039 104020100928: 1041 The copyright strings printed by login(1) and sshd(8) at the time of a 1042 new connection have been removed to follow other operating systems and 1043 upstream sshd. 1044 104520100915: 1046 A workaround for a fixed ld bug has been removed in kernel code, 1047 so make sure that your system ld is built from sources after 1048 revision 210245 from 2010-07-19 (r211583 if building head kernel 1049 on stable/8, r211584 for stable/7; both from 2010-08-21). 1050 A symptom of incorrect ld version is different addresses for 1051 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 1052 105320100913: 1054 The $ipv6_prefer variable in rc.conf(5) has been split into 1055 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 1056 1057 The $ip6addrctl_policy is a variable to choose a pre-defined 1058 address selection policy set by ip6addrctl(8). A value 1059 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 1060 default is "AUTO". 1061 1062 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 1063 flag (see an entry of 20090926) is set on an interface with no 1064 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 1065 security reason. If you want IPv6 link-local address on all 1066 interfaces by default, set this to "YES". 1067 1068 The old ipv6_prefer="YES" is equivalent to 1069 ipv6_activate_all_interfaces="YES" and 1070 ip6addrctl_policy="ipv6_prefer". 1071 107220100913: 1073 DTrace has grown support for userland tracing. Due to this, DTrace is 1074 now i386 and amd64 only. 1075 dtruss(1) is now installed by default on those systems and a new 1076 kernel module is needed for userland tracing: fasttrap. 1077 No changes to your kernel config file are necessary to enable 1078 userland tracing, but you might consider adding 'STRIP=' and 1079 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 1080 to have informative userland stack traces in DTrace (ustack). 1081 108220100725: 1083 The acpi_aiboost(4) driver has been removed in favor of the new 1084 aibs(4) driver. You should update your kernel configuration file. 1085 108620100722: 1087 BSD grep has been imported to the base system and it is built by 1088 default. It is completely BSD licensed, highly GNU-compatible, uses 1089 less memory than its GNU counterpart and has a small codebase. 1090 However, it is slower than its GNU counterpart, which is mostly 1091 noticeable for larger searches, for smaller ones it is measurable 1092 but not significant. The reason is complex, the most important factor 1093 is that we lack a modern and efficient regex library and GNU 1094 overcomes this by optimizing the searches internally. Future work 1095 on improving the regex performance is planned, for the meantime, 1096 users that need better performance, can build GNU grep instead by 1097 setting the WITH_GNU_GREP knob. 1098 109920100713: 1100 Due to the import of powerpc64 support, all existing powerpc kernel 1101 configuration files must be updated with a machine directive like this: 1102 machine powerpc powerpc 1103 1104 In addition, an updated config(8) is required to build powerpc kernels 1105 after this change. 1106 110720100713: 1108 A new version of ZFS (version 15) has been merged to -HEAD. 1109 This version uses a python library for the following subcommands: 1110 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 1111 For full functionality of these commands the following port must 1112 be installed: sysutils/py-zfs 1113 111420100429: 1115 'vm_page's are now hashed by physical address to an array of mutexes. 1116 Currently this is only used to serialize access to hold_count. Over 1117 time the page queue mutex will be peeled away. This changes the size 1118 of pmap on every architecture. And requires all callers of vm_page_hold 1119 and vm_page_unhold to be updated. 1120 112120100402: 1122 WITH_CTF can now be specified in src.conf (not recommended, there 1123 are some problems with static executables), make.conf (would also 1124 affect ports which do not use GNU make and do not override the 1125 compile targets) or in the kernel config (via "makeoptions 1126 WITH_CTF=yes"). 1127 When WITH_CTF was specified there before this was silently ignored, 1128 so make sure that WITH_CTF is not used in places which could lead 1129 to unwanted behavior. 1130 113120100311: 1132 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1133 to allow 32-bit compatibility on non-x86 platforms. All kernel 1134 configurations on amd64 and ia64 platforms using these options must 1135 be modified accordingly. 1136 113720100113: 1138 The utmp user accounting database has been replaced with utmpx, 1139 the user accounting interface standardized by POSIX. 1140 Unfortunately the semantics of utmp and utmpx don't match, 1141 making it practically impossible to support both interfaces. 1142 The user accounting database is used by tools like finger(1), 1143 last(1), talk(1), w(1) and ac(8). 1144 1145 All applications in the base system use utmpx. This means only 1146 local binaries (e.g. from the ports tree) may still use these 1147 utmp database files. These applications must be rebuilt to make 1148 use of utmpx. 1149 1150 After the system has been upgraded, it is safe to remove the old 1151 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1152 assuming their contents is of no importance anymore. Old wtmp 1153 databases can only be used by last(1) and ac(8) after they have 1154 been converted to the new format using wtmpcvt(1). 1155 115620100108: 1157 Introduce the kernel thread "deadlock resolver" (which can be enabled 1158 via the DEADLKRES option, see NOTES for more details) and the 1159 sleepq_type() function for sleepqueues. 1160 116120091202: 1162 The rc.firewall and rc.firewall6 were unified, and 1163 rc.firewall6 and rc.d/ip6fw were removed. 1164 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1165 variables are obsoleted. Instead, the following new rc 1166 variables are added to rc.d/ipfw: 1167 1168 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1169 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1170 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1171 1172 The meanings correspond to the relevant IPv4 variables. 1173 117420091125: 1175 8.0-RELEASE. 1176 117720091113: 1178 The default terminal emulation for syscons(4) has been changed 1179 from cons25 to xterm on all platforms except pc98. This means 1180 that the /etc/ttys file needs to be updated to ensure correct 1181 operation of applications on the console. 1182 1183 The terminal emulation style can be toggled per window by using 1184 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1185 options can be used to change the compile-time default back to 1186 cons25. 1187 1188 To prevent graphical artifacts, make sure the TERM environment 1189 variable is set to match the terminal emulation that is being 1190 performed by syscons(4). 1191 119220091109: 1193 The layout of the structure ieee80211req_scan_result has changed. 1194 Applications that require wireless scan results (e.g. ifconfig(8)) 1195 from net80211 need to be recompiled. 1196 1197 Applications such as wpa_supplicant(8) may require a full world 1198 build without using NO_CLEAN in order to get synchronized with the 1199 new structure. 1200 120120091025: 1202 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1203 There's one kernel module for each firmware. Adding "device iwnfw" 1204 to the kernel configuration file means including all three firmware 1205 images inside the kernel. If you want to include just the one for 1206 your wireless card, use the devices iwn4965fw, iwn5000fw or 1207 iwn5150fw. 1208 120920090926: 1210 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1211 into rc.d/netif. The changes are the following: 1212 1213 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1214 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1215 Note that both variables need the "inet6" keyword at the head. 1216 1217 Do not set $ipv6_network_interfaces manually if you do not 1218 understand what you are doing. It is not needed in most cases. 1219 1220 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1221 they are obsolete. 1222 1223 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1224 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1225 1226 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1227 all configured interfaces have "inet6 accept_rtadv" in the 1228 $ifconfig_IF_ipv6. These are for backward compatibility. 1229 1230 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1231 functionality of interfaces with no corresponding 1232 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1233 and the default address selection policy of ip6addrctl(8) 1234 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1235 Note that if you want to configure IPv6 functionality on the 1236 disabled interfaces after boot, first you need to clear the flag by 1237 using ifconfig(8) like: 1238 1239 ifconfig em0 inet6 -ifdisabled 1240 1241 If YES, the default address selection policy is set as 1242 IPv6-preferred. 1243 1244 The default value of $ipv6_prefer is NO. 1245 1246 4. If your system need to receive Router Advertisement messages, 1247 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1248 scripts automatically invoke rtsol(8) when the interface becomes 1249 UP. The Router Advertisement messages are used for SLAAC 1250 (State-Less Address AutoConfiguration). 1251 125220090922: 1253 802.11s D3.03 support was committed. This is incompatible with the 1254 previous code, which was based on D3.0. 1255 125620090912: 1257 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1258 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1259 control whether accepting Router Advertisement messages or not. 1260 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1261 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1262 The ifconfig(8) utility now supports these flags. 1263 126420090910: 1265 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1266 mount(8) and -a option for df(1) to see them. 1267 126820090825: 1269 The old tunable hw.bus.devctl_disable has been superseded by 1270 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1271 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1272 is 1000. 1273 127420090813: 1275 Remove the option STOP_NMI. The default action is now to use NMI only 1276 for KDB via the newly introduced function stop_cpus_hard() and 1277 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1278 127920090803: 1280 The stable/8 branch created in subversion. This corresponds to the 1281 RELENG_8 branch in CVS. 1282 128320090719: 1284 Bump the shared library version numbers for all libraries that do not 1285 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1286 __FreeBSD_version to 800105. 1287 128820090714: 1289 Due to changes in the implementation of virtual network stack support, 1290 all network-related kernel modules must be recompiled. As this change 1291 breaks the ABI, bump __FreeBSD_version to 800104. 1292 129320090713: 1294 The TOE interface to the TCP syncache has been modified to remove 1295 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1296 The cxgb driver is the only TOE consumer affected by this change, and 1297 needs to be recompiled along with the kernel. As this change breaks 1298 the ABI, bump __FreeBSD_version to 800103. 1299 130020090712: 1301 Padding has been added to struct tcpcb, sackhint and tcpstat in 1302 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1303 maintaining the ABI. However, this change breaks the ABI, so bump 1304 __FreeBSD_version to 800102. User space tools that rely on the size of 1305 any of these structs (e.g. sockstat) need to be recompiled. 1306 130720090630: 1308 The NFS_LEGACYRPC option has been removed along with the old kernel 1309 RPC implementation that this option selected. Kernel configurations 1310 may need to be adjusted. 1311 131220090629: 1313 The network interface device nodes at /dev/net/<interface> have been 1314 removed. All ioctl operations can be performed the normal way using 1315 routing sockets. The kqueue functionality can generally be replaced 1316 with routing sockets. 1317 131820090628: 1319 The documentation from the FreeBSD Documentation Project (Handbook, 1320 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1321 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1322 132320090624: 1324 The ABI of various structures related to the SYSV IPC API have been 1325 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1326 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1327 800100. 1328 132920090622: 1330 Layout of struct vnet has changed as routing related variables were 1331 moved to their own Vimage module. Modules need to be recompiled. Bump 1332 __FreeBSD_version to 800099. 1333 133420090619: 1335 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1336 respectively. As long as no more than 16 groups per process are used, 1337 no changes should be visible. When more than 16 groups are used, old 1338 binaries may fail if they call getgroups() or getgrouplist() with 1339 statically sized storage. Recompiling will work around this, but 1340 applications should be modified to use dynamically allocated storage 1341 for group arrays as POSIX.1-2008 does not cap an implementation's 1342 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1343 1344 NFS and portalfs mounts may also be affected as the list of groups is 1345 truncated to 16. Users of NFS who use more than 16 groups, should 1346 take care that negative group permissions are not used on the exported 1347 file systems as they will not be reliable unless a GSSAPI based 1348 authentication method is used. 1349 135020090616: 1351 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1352 option compiles in the support for adaptive spinning for lockmgrs 1353 which want to enable it. The lockinit() function now accepts the flag 1354 LK_ADAPTIVE in order to make the lock object subject to adaptive 1355 spinning when both held in write and read mode. 1356 135720090613: 1358 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1359 changed. User applications that use this ioctl need to be rebuilt. 1360 136120090611: 1362 The layout of struct thread has changed. Kernel and modules need to 1363 be rebuilt. 1364 136520090608: 1366 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1367 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1368 136920090602: 1370 window(1) has been removed from the base system. It can now be 1371 installed from ports. The port is called misc/window. 1372 137320090601: 1374 The way we are storing and accessing `routing table' entries has 1375 changed. Programs reading the FIB, like netstat, need to be 1376 re-compiled. 1377 137820090601: 1379 A new netisr implementation has been added for FreeBSD 8. Network 1380 file system modules, such as igmp, ipdivert, and others, should be 1381 rebuilt. 1382 Bump __FreeBSD_version to 800096. 1383 138420090530: 1385 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1386 more valid. 1387 138820090530: 1389 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1390 Bump __FreeBSD_version to 800094. 1391 139220090529: 1393 Add mnt_xflag field to 'struct mount'. File system modules need to be 1394 rebuilt. 1395 Bump __FreeBSD_version to 800093. 1396 139720090528: 1398 The compiling option ADAPTIVE_SX has been retired while it has been 1399 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1400 The KPI for sx_init_flags() changes as accepting flags: 1401 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1402 been introduced in order to handle the reversed logic. 1403 Bump __FreeBSD_version to 800092. 1404 140520090527: 1406 Add support for hierarchical jails. Remove global securelevel. 1407 Bump __FreeBSD_version to 800091. 1408 140920090523: 1410 The layout of struct vnet_net has changed, therefore modules 1411 need to be rebuilt. 1412 Bump __FreeBSD_version to 800090. 1413 141420090523: 1415 The newly imported zic(8) produces a new format in the output. Please 1416 run tzsetup(8) to install the newly created data to /etc/localtime. 1417 141820090520: 1419 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1420 hw.usb.* and is now consistent again with previous releases. 1421 142220090520: 1423 802.11 monitor mode support was revised and driver api's were changed. 1424 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1425 of DLT_IEEE802_11. No user-visible data structures were changed but 1426 applications that use DLT_IEEE802_11 may require changes. 1427 Bump __FreeBSD_version to 800088. 1428 142920090430: 1430 The layout of the following structs has changed: sysctl_oid, 1431 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1432 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1433 panics may be experienced. World rebuild is required for 1434 correctly checking networking state from userland. 1435 Bump __FreeBSD_version to 800085. 1436 143720090429: 1438 MLDv2 and Source-Specific Multicast (SSM) have been merged 1439 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1440 The implementation of SSM within FreeBSD's IPv6 stack closely 1441 follows the IPv4 implementation. 1442 1443 For kernel developers: 1444 1445 * The most important changes are that the ip6_output() and 1446 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1447 and this lock has been downgraded to a non-recursive mutex. 1448 1449 * As with the changes to the IPv4 stack to support SSM, filtering 1450 of inbound multicast traffic must now be performed by transport 1451 protocols within the IPv6 stack. This does not apply to TCP and 1452 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1453 1454 * The KPIs used by IPv6 multicast are similar to those used by 1455 the IPv4 stack, with the following differences: 1456 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1457 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1458 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1459 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1460 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1461 for MLDv1 have an additional 'timer' argument which is used to 1462 jitter the initial membership report for the solicited-node 1463 multicast membership on-link. 1464 * This is not strictly needed for MLDv2, which already jitters 1465 its report transmissions. However, the 'timer' argument is 1466 preserved in case MLDv1 is active on the interface. 1467 1468 * The KAME linked-list based IPv6 membership implementation has 1469 been refactored to use a vector similar to that used by the IPv4 1470 stack. 1471 Code which maintains a list of its own multicast memberships 1472 internally, e.g. carp, has been updated to reflect the new 1473 semantics. 1474 1475 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1476 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1477 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1478 implementation constraint which needs to be addressed in HEAD. 1479 1480 For application developers: 1481 1482 * The changes are broadly similar to those made for the IPv4 1483 stack. 1484 1485 * The use of IPv4 and IPv6 multicast socket options on the same 1486 socket, using mapped addresses, HAS NOT been tested or supported. 1487 1488 * There are a number of issues with the implementation of various 1489 IPv6 multicast APIs which need to be resolved in the API surface 1490 before the implementation is fully compatible with KAME userland 1491 use, and these are mostly to do with interface index treatment. 1492 1493 * The literature available discusses the use of either the delta / ASM 1494 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1495 using setsourcefilter(3)/getsourcefilter(3). For more information 1496 please refer to RFC 3768, 'Socket Interface Extensions for 1497 Multicast Source Filters'. 1498 1499 * Applications which use the published RFC 3678 APIs should be fine. 1500 1501 For systems administrators: 1502 1503 * The mtest(8) utility has been refactored to support IPv6, in 1504 addition to IPv4. Interface addresses are no longer accepted 1505 as arguments, their names must be used instead. The utility 1506 will map the interface name to its first IPv4 address as 1507 returned by getifaddrs(3). 1508 1509 * The ifmcstat(8) utility has also been updated to print the MLDv2 1510 endpoint state and source filter lists via sysctl(3). 1511 1512 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1513 loopback of IPv6 multicast datagrams by default; it defaults to 1 1514 to preserve the existing behaviour. Disabling multicast loopback is 1515 recommended for optimal system performance. 1516 1517 * The IPv6 MROUTING code has been changed to examine this sysctl 1518 instead of attempting to perform a group lookup before looping 1519 back forwarded datagrams. 1520 1521 Bump __FreeBSD_version to 800084. 1522 152320090422: 1524 Implement low-level Bluetooth HCI API. 1525 Bump __FreeBSD_version to 800083. 1526 152720090419: 1528 The layout of struct malloc_type, used by modules to register new 1529 memory allocation types, has changed. Most modules will need to 1530 be rebuilt or panics may be experienced. 1531 Bump __FreeBSD_version to 800081. 1532 153320090415: 1534 Anticipate overflowing inp_flags - add inp_flags2. 1535 This changes most offsets in inpcb, so checking v4 connection 1536 state will require a world rebuild. 1537 Bump __FreeBSD_version to 800080. 1538 153920090415: 1540 Add an llentry to struct route and struct route_in6. Modules 1541 embedding a struct route will need to be recompiled. 1542 Bump __FreeBSD_version to 800079. 1543 154420090414: 1545 The size of rt_metrics_lite and by extension rtentry has changed. 1546 Networking administration apps will need to be recompiled. 1547 The route command now supports show as an alias for get, weighting 1548 of routes, sticky and nostick flags to alter the behavior of stateful 1549 load balancing. 1550 Bump __FreeBSD_version to 800078. 1551 155220090408: 1553 Do not use Giant for kbdmux(4) locking. This is wrong and 1554 apparently causing more problems than it solves. This will 1555 re-open the issue where interrupt handlers may race with 1556 kbdmux(4) in polling mode. Typical symptoms include (but 1557 not limited to) duplicated and/or missing characters when 1558 low level console functions (such as gets) are used while 1559 interrupts are enabled (for example geli password prompt, 1560 mountroot prompt etc.). Disabling kbdmux(4) may help. 1561 156220090407: 1563 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1564 kernel modules referencing any of the above need to be recompiled. 1565 Bump __FreeBSD_version to 800075. 1566 156720090320: 1568 GEOM_PART has become the default partition slicer for storage devices, 1569 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1570 introduces some changes: 1571 1572 MSDOS/EBR: the devices created from MSDOS extended partition entries 1573 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1574 to devices with offset-based names. fstabs may need to be modified. 1575 1576 BSD: the "geometry does not match label" warning is harmless in most 1577 cases but it points to problems in file system misalignment with 1578 disk geometry. The "c" partition is now implicit, covers the whole 1579 top-level drive and cannot be (mis)used by users. 1580 1581 General: Kernel dumps are now not allowed to be written to devices 1582 whose partition types indicate they are meant to be used for file 1583 systems (or, in case of MSDOS partitions, as something else than 1584 the "386BSD" type). 1585 1586 Most of these changes date approximately from 200812. 1587 158820090319: 1589 The uscanner(4) driver has been removed from the kernel. This follows 1590 Linux removing theirs in 2.6 and making libusb the default interface 1591 (supported by sane). 1592 159320090319: 1594 The multicast forwarding code has been cleaned up. netstat(1) 1595 only relies on KVM now for printing bandwidth upcall meters. 1596 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1597 ip6_mroute_mod respectively. The config(5) options for statically 1598 compiling this code remain the same, i.e. 'options MROUTING'. 1599 160020090315: 1601 Support for the IFF_NEEDSGIANT network interface flag has been 1602 removed, which means that non-MPSAFE network device drivers are no 1603 longer supported. In particular, if_ar, if_sr, and network device 1604 drivers from the old (legacy) USB stack can no longer be built or 1605 used. 1606 160720090313: 1608 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1609 a bunch of new language catalog files have also been added. 1610 This means that some common libc messages are now localized and 1611 they depend on the LC_MESSAGES environmental variable. 1612 161320090313: 1614 The k8temp(4) driver has been renamed to amdtemp(4) since 1615 support for Family 10 and Family 11 CPU families was added. 1616 161720090309: 1618 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1619 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1620 1621 For kernel developers, the most important changes are that the 1622 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1623 and this lock has been downgraded to a non-recursive mutex. 1624 1625 Transport protocols (UDP, Raw IP) are now responsible for filtering 1626 inbound multicast traffic according to group membership and source 1627 filters. The imo_multicast_filter() KPI exists for this purpose. 1628 Transports which do not use multicast (SCTP, TCP) already reject 1629 multicast by default. Forwarding and receive performance may improve 1630 as a mutex acquisition is no longer needed in the ip_input() 1631 low-level input path. in_addmulti() and in_delmulti() are shimmed 1632 to new KPIs which exist to support SSM in-kernel. 1633 1634 For application developers, it is recommended that loopback of 1635 multicast datagrams be disabled for best performance, as this 1636 will still cause the lock to be taken for each looped-back 1637 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1638 be tuned to 0 to disable loopback by default; it defaults to 1 1639 to preserve the existing behaviour. 1640 1641 For systems administrators, to obtain best performance with 1642 multicast reception and multiple groups, it is always recommended 1643 that a card with a suitably precise hash filter is used. Hash 1644 collisions will still result in the lock being taken within the 1645 transport protocol input path to check group membership. 1646 1647 If deploying FreeBSD in an environment with IGMP snooping switches, 1648 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1649 enabled; this forces 224.0.0.0/24 group membership to be announced 1650 via IGMP. 1651 1652 The size of 'struct igmpstat' has changed; netstat needs to be 1653 recompiled to reflect this. 1654 Bump __FreeBSD_version to 800070. 1655 165620090309: 1657 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1658 updated to use it. This requires a buildworld/installworld in order to 1659 update the library and dependencies (usbconfig, etc). Its advisable to 1660 rebuild all ports which uses libusb. More specific directions are given 1661 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1662 libusb are no longer required and can be removed. 1663 166420090302: 1665 A workaround is committed to allow the creation of System V shared 1666 memory segment of size > 2 GB on the 64-bit architectures. 1667 Due to a limitation of the existing ABI, the shm_segsz member 1668 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1669 wrong for large segments. Note that limits must be explicitly 1670 raised to allow such segments to be created. 1671 167220090301: 1673 The layout of struct ifnet has changed, requiring a rebuild of all 1674 network device driver modules. 1675 167620090227: 1677 The /dev handling for the new USB stack has changed, a 1678 buildworld/installworld is required for libusb20. 1679 168020090223: 1681 The new USB2 stack has now been permanently moved in and all kernel and 1682 module names reverted to their previous values (eg, usb, ehci, ohci, 1683 ums, ...). The old usb stack can be compiled in by prefixing the name 1684 with the letter 'o', the old usb modules have been removed. 1685 Updating entry 20090216 for xorg and 20090215 for libmap may still 1686 apply. 1687 168820090217: 1689 The rc.conf(5) option if_up_delay has been renamed to 1690 defaultroute_delay to better reflect its purpose. If you have 1691 customized this setting in /etc/rc.conf you need to update it to 1692 use the new name. 1693 169420090216: 1695 xorg 7.4 wants to configure its input devices via hald which does not 1696 yet work with USB2. If the keyboard/mouse does not work in xorg then 1697 add 1698 Option "AllowEmptyInput" "off" 1699 to your ServerLayout section. This will cause X to use the configured 1700 kbd and mouse sections from your xorg.conf. 1701 170220090215: 1703 The GENERIC kernels for all architectures now default to the new USB2 1704 stack. No kernel config options or code have been removed so if a 1705 problem arises please report it and optionally revert to the old USB 1706 stack. If you are loading USB kernel modules or have a custom kernel 1707 that includes GENERIC then ensure that usb names are also changed over, 1708 eg uftdi -> usb2_serial_ftdi. 1709 1710 Older programs linked against the ports libusb 0.1 need to be 1711 redirected to the new stack's libusb20. /etc/libmap.conf can 1712 be used for this: 1713 # Map old usb library to new one for usb2 stack 1714 libusb-0.1.so.8 libusb20.so.1 1715 171620090209: 1717 All USB ethernet devices now attach as interfaces under the name ueN 1718 (eg. ue0). This is to provide a predictable name as vendors often 1719 change usb chipsets in a product without notice. 1720 172120090203: 1722 The ichsmb(4) driver has been changed to require SMBus slave 1723 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1724 All of the other SMBus controller drivers require left-justified 1725 slave addresses, so this change makes all the drivers provide the 1726 same interface. 1727 172820090201: 1729 INET6 statistics (struct ip6stat) was updated. 1730 netstat(1) needs to be recompiled. 1731 173220090119: 1733 NTFS has been removed from GENERIC kernel on amd64 to match 1734 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1735 will load ntfs.ko module automatically when NTFS support is 1736 actually needed, unless ntfs.ko is not installed or security 1737 level prohibits loading kernel modules. If either is the case, 1738 "options NTFS" has to be added into kernel config. 1739 174020090115: 1741 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1742 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1743 800061. User space tools that rely on the size of struct tcpcb in 1744 tcp_var.h (e.g. sockstat) need to be recompiled. 1745 174620081225: 1747 ng_tty(4) module updated to match the new TTY subsystem. 1748 Due to API change, user-level applications must be updated. 1749 New API support added to mpd5 CVS and expected to be present 1750 in next mpd5.3 release. 1751 175220081219: 1753 With __FreeBSD_version 800060 the makefs tool is part of 1754 the base system (it was a port). 1755 175620081216: 1757 The afdata and ifnet locks have been changed from mutexes to 1758 rwlocks, network modules will need to be re-compiled. 1759 176020081214: 1761 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1762 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1763 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1764 architecture and 40 bytes on 64-bit architecture. The userland 1765 applications "arp" and "ndp" have been updated accordingly. 1766 The output from "netstat -r" shows only routing entries and 1767 none of the L2 information. 1768 176920081130: 1770 __FreeBSD_version 800057 marks the switchover from the 1771 binary ath hal to source code. Users must add the line: 1772 1773 options AH_SUPPORT_AR5416 1774 1775 to their kernel config files when specifying: 1776 1777 device ath_hal 1778 1779 The ath_hal module no longer exists; the code is now compiled 1780 together with the driver in the ath module. It is now 1781 possible to tailor chip support (i.e. reduce the set of chips 1782 and thereby the code size); consult ath_hal(4) for details. 1783 178420081121: 1785 __FreeBSD_version 800054 adds memory barriers to 1786 <machine/atomic.h>, new interfaces to ifnet to facilitate 1787 multiple hardware transmit queues for cards that support 1788 them, and a lock-less ring-buffer implementation to 1789 enable drivers to more efficiently manage queueing of 1790 packets. 1791 179220081117: 1793 A new version of ZFS (version 13) has been merged to -HEAD. 1794 This version has zpool attribute "listsnapshots" off by 1795 default, which means "zfs list" does not show snapshots, 1796 and is the same as Solaris behavior. 1797 179820081028: 1799 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1800 180120081009: 1802 The uhci, ohci, ehci and slhci USB Host controller drivers have 1803 been put into separate modules. If you load the usb module 1804 separately through loader.conf you will need to load the 1805 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1806 controller add the following to loader.conf: 1807 1808 uhci_load="YES" 1809 ehci_load="YES" 1810 181120081009: 1812 The ABI used by the PMC toolset has changed. Please keep 1813 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1814 sync. 1815 181620081009: 1817 atapci kernel module now includes only generic PCI ATA 1818 driver. AHCI driver moved to ataahci kernel module. 1819 All vendor-specific code moved into separate kernel modules: 1820 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1821 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1822 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1823 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1824 182520080820: 1826 The TTY subsystem of the kernel has been replaced by a new 1827 implementation, which provides better scalability and an 1828 improved driver model. Most common drivers have been migrated to 1829 the new TTY subsystem, while others have not. The following 1830 drivers have not yet been ported to the new TTY layer: 1831 1832 PCI/ISA: 1833 cy, digi, rc, rp, sio 1834 1835 USB: 1836 ubser, ucycom 1837 1838 Line disciplines: 1839 ng_h4, ng_tty, ppp, sl, snp 1840 1841 Adding these drivers to your kernel configuration file shall 1842 cause compilation to fail. 1843 184420080818: 1845 ntpd has been upgraded to 4.2.4p5. 1846 184720080801: 1848 OpenSSH has been upgraded to 5.1p1. 1849 1850 For many years, FreeBSD's version of OpenSSH preferred DSA 1851 over RSA for host and user authentication keys. With this 1852 upgrade, we've switched to the vendor's default of RSA over 1853 DSA. This may cause upgraded clients to warn about unknown 1854 host keys even for previously known hosts. Users should 1855 follow the usual procedure for verifying host keys before 1856 accepting the RSA key. 1857 1858 This can be circumvented by setting the "HostKeyAlgorithms" 1859 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1860 command line. 1861 1862 Please note that the sequence of keys offered for 1863 authentication has been changed as well. You may want to 1864 specify IdentityFile in a different order to revert this 1865 behavior. 1866 186720080713: 1868 The sio(4) driver has been removed from the i386 and amd64 1869 kernel configuration files. This means uart(4) is now the 1870 default serial port driver on those platforms as well. 1871 1872 To prevent collisions with the sio(4) driver, the uart(4) driver 1873 uses different names for its device nodes. This means the 1874 onboard serial port will now most likely be called "ttyu0" 1875 instead of "ttyd0". You may need to reconfigure applications to 1876 use the new device names. 1877 1878 When using the serial port as a boot console, be sure to update 1879 /boot/device.hints and /etc/ttys before booting the new kernel. 1880 If you forget to do so, you can still manually specify the hints 1881 at the loader prompt: 1882 1883 set hint.uart.0.at="isa" 1884 set hint.uart.0.port="0x3F8" 1885 set hint.uart.0.flags="0x10" 1886 set hint.uart.0.irq="4" 1887 boot -s 1888 188920080609: 1890 The gpt(8) utility has been removed. Use gpart(8) to partition 1891 disks instead. 1892 189320080603: 1894 The version that Linuxulator emulates was changed from 2.4.2 1895 to 2.6.16. If you experience any problems with Linux binaries 1896 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1897 if it fixes the problem contact emulation mailing list. 1898 189920080525: 1900 ISDN4BSD (I4B) was removed from the src tree. You may need to 1901 update a your kernel configuration and remove relevant entries. 1902 190320080509: 1904 I have checked in code to support multiple routing tables. 1905 See the man pages setfib(1) and setfib(2). 1906 This is a hopefully backwards compatible version, 1907 but to make use of it you need to compile your kernel 1908 with options ROUTETABLES=2 (or more up to 16). 1909 191020080420: 1911 The 802.11 wireless support was redone to enable multi-bss 1912 operation on devices that are capable. The underlying device 1913 is no longer used directly but instead wlanX devices are 1914 cloned with ifconfig. This requires changes to rc.conf files. 1915 For example, change: 1916 ifconfig_ath0="WPA DHCP" 1917 to 1918 wlans_ath0=wlan0 1919 ifconfig_wlan0="WPA DHCP" 1920 see rc.conf(5) for more details. In addition, mergemaster of 1921 /etc/rc.d is highly recommended. Simultaneous update of userland 1922 and kernel wouldn't hurt either. 1923 1924 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1925 modules were merged into the base wlan module. All references 1926 to these modules (e.g. in kernel config files) must be removed. 1927 192820080408: 1929 psm(4) has gained write(2) support in native operation level. 1930 Arbitrary commands can be written to /dev/psm%d and status can 1931 be read back from it. Therefore, an application is responsible 1932 for status validation and error recovery. It is a no-op in 1933 other operation levels. 1934 193520080312: 1936 Support for KSE threading has been removed from the kernel. To 1937 run legacy applications linked against KSE libmap.conf may 1938 be used. The following libmap.conf may be used to ensure 1939 compatibility with any prior release: 1940 1941 libpthread.so.1 libthr.so.1 1942 libpthread.so.2 libthr.so.2 1943 libkse.so.3 libthr.so.3 1944 194520080301: 1946 The layout of struct vmspace has changed. This affects libkvm 1947 and any executables that link against libkvm and use the 1948 kvm_getprocs() function. In particular, but not exclusively, 1949 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1950 The effects are minimal, but it's advisable to upgrade world 1951 nonetheless. 1952 195320080229: 1954 The latest em driver no longer has support in it for the 1955 82575 adapter, this is now moved to the igb driver. The 1956 split was done to make new features that are incompatible 1957 with older hardware easier to do. 1958 195920080220: 1960 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1961 likewise the kernel option is now GEOM_LINUX_LVM. 1962 196320080211: 1964 The default NFS mount mode has changed from UDP to TCP for 1965 increased reliability. If you rely on (insecurely) NFS 1966 mounting across a firewall you may need to update your 1967 firewall rules. 1968 196920080208: 1970 Belatedly note the addition of m_collapse for compacting 1971 mbuf chains. 1972 197320080126: 1974 The fts(3) structures have been changed to use adequate 1975 integer types for their members and so to be able to cope 1976 with huge file trees. The old fts(3) ABI is preserved 1977 through symbol versioning in libc, so third-party binaries 1978 using fts(3) should still work, although they will not take 1979 advantage of the extended types. At the same time, some 1980 third-party software might fail to build after this change 1981 due to unportable assumptions made in its source code about 1982 fts(3) structure members. Such software should be fixed 1983 by its vendor or, in the worst case, in the ports tree. 1984 FreeBSD_version 800015 marks this change for the unlikely 1985 case that a portable fix is impossible. 1986 198720080123: 1988 To upgrade to -current after this date, you must be running 1989 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1990 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1991 199220071128: 1993 The ADAPTIVE_GIANT kernel option has been retired because its 1994 functionality is the default now. 1995 199620071118: 1997 The AT keyboard emulation of sunkbd(4) has been turned on 1998 by default. In order to make the special symbols of the Sun 1999 keyboards driven by sunkbd(4) work under X these now have 2000 to be configured the same way as Sun USB keyboards driven 2001 by ukbd(4) (which also does AT keyboard emulation), f.e.: 2002 2003 Option "XkbLayout" "us" 2004 Option "XkbRules" "xorg" 2005 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 2006 200720071024: 2008 It has been decided that it is desirable to provide ABI 2009 backwards compatibility to the FreeBSD 4/5/6 versions of the 2010 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 2011 broken with the introduction of PCI domain support (see the 2012 20070930 entry). Unfortunately, this required the ABI of 2013 PCIOCGETCONF to be broken again in order to be able to 2014 provide backwards compatibility to the old version of that 2015 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 2016 again. As for prominent ports this affects neither pciutils 2017 nor xorg-server this time, the hal port needs to be rebuilt 2018 however. 2019 202020071020: 2021 The misnamed kthread_create() and friends have been renamed 2022 to kproc_create() etc. Many of the callers already 2023 used kproc_start().. 2024 I will return kthread_create() and friends in a while 2025 with implementations that actually create threads, not procs. 2026 Renaming corresponds with version 800002. 2027 202820071010: 2029 RELENG_7 branched. 2030 2031COMMON ITEMS: 2032 2033 General Notes 2034 ------------- 2035 Avoid using make -j when upgrading. While generally safe, there are 2036 sometimes problems using -j to upgrade. If your upgrade fails with 2037 -j, please try again without -j. From time to time in the past there 2038 have been problems using -j with buildworld and/or installworld. This 2039 is especially true when upgrading between "distant" versions (eg one 2040 that cross a major release boundary or several minor releases, or when 2041 several months have passed on the -current branch). 2042 2043 Sometimes, obscure build problems are the result of environment 2044 poisoning. This can happen because the make utility reads its 2045 environment when searching for values for global variables. To run 2046 your build attempts in an "environmental clean room", prefix all make 2047 commands with 'env -i '. See the env(1) manual page for more details. 2048 2049 When upgrading from one major version to another it is generally best 2050 to upgrade to the latest code in the currently installed branch first, 2051 then do an upgrade to the new branch. This is the best-tested upgrade 2052 path, and has the highest probability of being successful. Please try 2053 this approach before reporting problems with a major version upgrade. 2054 2055 When upgrading a live system, having a root shell around before 2056 installing anything can help undo problems. Not having a root shell 2057 around can lead to problems if pam has changed too much from your 2058 starting point to allow continued authentication after the upgrade. 2059 2060 ZFS notes 2061 --------- 2062 When upgrading the boot ZFS pool to a new version, always follow 2063 these two steps: 2064 2065 1.) recompile and reinstall the ZFS boot loader and boot block 2066 (this is part of "make buildworld" and "make installworld") 2067 2068 2.) update the ZFS boot block on your boot drive 2069 2070 The following example updates the ZFS boot block on the first 2071 partition (freebsd-boot) of a GPT partitioned drive ad0: 2072 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 2073 2074 Non-boot pools do not need these updates. 2075 2076 To build a kernel 2077 ----------------- 2078 If you are updating from a prior version of FreeBSD (even one just 2079 a few days old), you should follow this procedure. It is the most 2080 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 2081 2082 make kernel-toolchain 2083 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 2084 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 2085 2086 To test a kernel once 2087 --------------------- 2088 If you just want to boot a kernel once (because you are not sure 2089 if it works, or if you want to boot a known bad kernel to provide 2090 debugging information) run 2091 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 2092 nextboot -k testkernel 2093 2094 To just build a kernel when you know that it won't mess you up 2095 -------------------------------------------------------------- 2096 This assumes you are already running a CURRENT system. Replace 2097 ${arch} with the architecture of your machine (e.g. "i386", 2098 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 2099 2100 cd src/sys/${arch}/conf 2101 config KERNEL_NAME_HERE 2102 cd ../compile/KERNEL_NAME_HERE 2103 make depend 2104 make 2105 make install 2106 2107 If this fails, go to the "To build a kernel" section. 2108 2109 To rebuild everything and install it on the current system. 2110 ----------------------------------------------------------- 2111 # Note: sometimes if you are running current you gotta do more than 2112 # is listed here if you are upgrading from a really old current. 2113 2114 <make sure you have good level 0 dumps> 2115 make buildworld 2116 make kernel KERNCONF=YOUR_KERNEL_HERE 2117 [1] 2118 <reboot in single user> [3] 2119 mergemaster -p [5] 2120 make installworld 2121 mergemaster -i [4] 2122 make delete-old [6] 2123 <reboot> 2124 2125 To cross-install current onto a separate partition 2126 -------------------------------------------------- 2127 # In this approach we use a separate partition to hold 2128 # current's root, 'usr', and 'var' directories. A partition 2129 # holding "/", "/usr" and "/var" should be about 2GB in 2130 # size. 2131 2132 <make sure you have good level 0 dumps> 2133 <boot into -stable> 2134 make buildworld 2135 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2136 <maybe newfs current's root partition> 2137 <mount current's root partition on directory ${CURRENT_ROOT}> 2138 make installworld DESTDIR=${CURRENT_ROOT} 2139 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2140 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2141 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2142 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2143 <reboot into current> 2144 <do a "native" rebuild/install as described in the previous section> 2145 <maybe install compatibility libraries from ports/misc/compat*> 2146 <reboot> 2147 2148 2149 To upgrade in-place from stable to current 2150 ---------------------------------------------- 2151 <make sure you have good level 0 dumps> 2152 make buildworld [9] 2153 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2154 [1] 2155 <reboot in single user> [3] 2156 mergemaster -p [5] 2157 make installworld 2158 mergemaster -i [4] 2159 make delete-old [6] 2160 <reboot> 2161 2162 Make sure that you've read the UPDATING file to understand the 2163 tweaks to various things you need. At this point in the life 2164 cycle of current, things change often and you are on your own 2165 to cope. The defaults can also change, so please read ALL of 2166 the UPDATING entries. 2167 2168 Also, if you are tracking -current, you must be subscribed to 2169 freebsd-current@freebsd.org. Make sure that before you update 2170 your sources that you have read and understood all the recent 2171 messages there. If in doubt, please track -stable which has 2172 much fewer pitfalls. 2173 2174 [1] If you have third party modules, such as vmware, you 2175 should disable them at this point so they don't crash your 2176 system on reboot. 2177 2178 [3] From the bootblocks, boot -s, and then do 2179 fsck -p 2180 mount -u / 2181 mount -a 2182 cd src 2183 adjkerntz -i # if CMOS is wall time 2184 Also, when doing a major release upgrade, it is required that 2185 you boot into single user mode to do the installworld. 2186 2187 [4] Note: This step is non-optional. Failure to do this step 2188 can result in a significant reduction in the functionality of the 2189 system. Attempting to do it by hand is not recommended and those 2190 that pursue this avenue should read this file carefully, as well 2191 as the archives of freebsd-current and freebsd-hackers mailing lists 2192 for potential gotchas. The -U option is also useful to consider. 2193 See mergemaster(8) for more information. 2194 2195 [5] Usually this step is a noop. However, from time to time 2196 you may need to do this if you get unknown user in the following 2197 step. It never hurts to do it all the time. You may need to 2198 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2199 install) after the buildworld before this step if you last updated 2200 from current before 20130425 or from -stable before 20130430. 2201 2202 [6] This only deletes old files and directories. Old libraries 2203 can be deleted by "make delete-old-libs", but you have to make 2204 sure that no program is using those libraries anymore. 2205 2206 [8] In order to have a kernel that can run the 4.x binaries needed to 2207 do an installworld, you must include the COMPAT_FREEBSD4 option in 2208 your kernel. Failure to do so may leave you with a system that is 2209 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2210 required to run the 5.x binaries on more recent kernels. And so on 2211 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2212 2213 Make sure that you merge any new devices from GENERIC since the 2214 last time you updated your kernel config file. 2215 2216 [9] When checking out sources, you must include the -P flag to have 2217 cvs prune empty directories. 2218 2219 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2220 "?=" instead of the "=" assignment operator, so that buildworld can 2221 override the CPUTYPE if it needs to. 2222 2223 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2224 not on the command line, or in /etc/make.conf. buildworld will 2225 warn if it is improperly defined. 2226FORMAT: 2227 2228This file contains a list, in reverse chronological order, of major 2229breakages in tracking -current. It is not guaranteed to be a complete 2230list of such breakages, and only contains entries since October 10, 2007. 2231If you need to see UPDATING entries from before that date, you will need 2232to fetch an UPDATING file from an older FreeBSD release. 2233 2234Copyright information: 2235 2236Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2237 2238Redistribution, publication, translation and use, with or without 2239modification, in full or in part, in any form or format of this 2240document are permitted without further permission from the author. 2241 2242THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2243IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2244WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2245DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2246INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2247(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2248SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2249HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2250STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2251IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2252POSSIBILITY OF SUCH DAMAGE. 2253 2254Contact Warner Losh if you have any questions about your use of 2255this document. 2256 2257$FreeBSD: stable/10/UPDATING 291976 2015-12-08 00:27:35Z bdrewery $ 2258