UPDATING revision 290783
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 40320130629: 404 Fix targets that run multiple make's to use && rather than ; 405 so that subsequent steps depend on success of previous. 406 407 NOTE: if building 'universe' with -j* on stable/8 or stable/9 408 it would be better to start the build using bmake, to avoid 409 overloading the machine. 410 41120130618: 412 Fix a bug that allowed a tracing process (e.g. gdb) to write 413 to a memory-mapped file in the traced process's address space 414 even if neither the traced process nor the tracing process had 415 write access to that file. 416 41720130615: 418 CVS has been removed from the base system. An exact copy 419 of the code is available from the devel/cvs port. 420 42120130613: 422 Some people report the following error after the switch to bmake: 423 424 make: illegal option -- J 425 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 426 ... 427 *** [buildworld] Error code 2 428 429 this likely due to an old instance of make in 430 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 431 which src/Makefile will use that blindly, if it exists, so if 432 you see the above error: 433 434 rm -rf `make -V MAKEPATH` 435 436 should resolve it. 437 43820130516: 439 Use bmake by default. 440 Whereas before one could choose to build with bmake via 441 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 442 make. The goal is to remove these knobs for 10-RELEASE. 443 444 It is worth noting that bmake (like gmake) treats the command 445 line as the unit of failure, rather than statements within the 446 command line. Thus '(cd some/where && dosomething)' is safer 447 than 'cd some/where; dosomething'. The '()' allows consistent 448 behavior in parallel build. 449 45020130429: 451 Fix a bug that allows NFS clients to issue READDIR on files. 452 45320130426: 454 The WITHOUT_IDEA option has been removed because 455 the IDEA patent expired. 456 45720130426: 458 The sysctl which controls TRIM support under ZFS has been renamed 459 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 460 enabled by default. 461 46220130425: 463 The mergemaster command now uses the default MAKEOBJDIRPREFIX 464 rather than creating it's own in the temporary directory in 465 order allow access to bootstrapped versions of tools such as 466 install and mtree. When upgrading from version of FreeBSD where 467 the install command does not support -l, you will need to 468 install a new mergemaster command if mergemaster -p is required. 469 This can be accomplished with the command (cd src/usr.sbin/mergemaster 470 && make install). 471 47220130404: 473 Legacy ATA stack, disabled and replaced by new CAM-based one since 474 FreeBSD 9.0, completely removed from the sources. Kernel modules 475 atadisk and atapi*, user-level tools atacontrol and burncd are 476 removed. Kernel option `options ATA_CAM` is now permanently enabled 477 and removed. 478 47920130319: 480 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 481 and socketpair(2). Software, in particular Kerberos, may 482 automatically detect and use these during building. The resulting 483 binaries will not work on older kernels. 484 48520130308: 486 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 487 information, see the respective 20130304 entry). 488 48920130304: 490 Recent commits to callout(9) changed the size of struct callout, 491 so the KBI is probably heavily disturbed. Also, some functions 492 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 493 by macros. Every kernel module using it won't load, so rebuild 494 is requested. 495 496 The ctl device has been re-enabled in GENERIC for i386 and amd64, 497 but does not initialize by default (because of the new CTL_DISABLE 498 option) to save memory. To re-enable it, remove the CTL_DISABLE 499 option from the kernel config file or set kern.cam.ctl.disable=0 500 in /boot/loader.conf. 501 50220130301: 503 The ctl device has been disabled in GENERIC for i386 and amd64. 504 This was done due to the extra memory being allocated at system 505 initialisation time by the ctl driver which was only used if 506 a CAM target device was created. This makes a FreeBSD system 507 unusable on 128MB or less of RAM. 508 50920130208: 510 A new compression method (lz4) has been merged to -HEAD. Please 511 refer to zpool-features(7) for more information. 512 513 Please refer to the "ZFS notes" section of this file for information 514 on upgrading boot ZFS pools. 515 51620130129: 517 A BSD-licensed patch(1) variant has been added and is installed 518 as bsdpatch, being the GNU version the default patch. 519 To inverse the logic and use the BSD-licensed one as default, 520 while having the GNU version installed as gnupatch, rebuild 521 and install world with the WITH_BSD_PATCH knob set. 522 52320130121: 524 Due to the use of the new -l option to install(1) during build 525 and install, you must take care not to directly set the INSTALL 526 make variable in your /etc/make.conf, /etc/src.conf, or on the 527 command line. If you wish to use the -C flag for all installs 528 you may be able to add INSTALL+=-C to /etc/make.conf or 529 /etc/src.conf. 530 53120130118: 532 The install(1) option -M has changed meaning and now takes an 533 argument that is a file or path to append logs to. In the 534 unlikely event that -M was the last option on the command line 535 and the command line contained at least two files and a target 536 directory the first file will have logs appended to it. The -M 537 option served little practical purpose in the last decade so its 538 use is expected to be extremely rare. 539 54020121223: 541 After switching to Clang as the default compiler some users of ZFS 542 on i386 systems started to experience stack overflow kernel panics. 543 Please consider using 'options KSTACK_PAGES=4' in such configurations. 544 54520121222: 546 GEOM_LABEL now mangles label names read from file system metadata. 547 Mangling affect labels containing spaces, non-printable characters, 548 '%' or '"'. Device names in /etc/fstab and other places may need to 549 be updated. 550 55120121217: 552 By default, only the 10 most recent kernel dumps will be saved. To 553 restore the previous behaviour (no limit on the number of kernel dumps 554 stored in the dump directory) add the following line to /etc/rc.conf: 555 556 savecore_flags="" 557 55820121201: 559 With the addition of auditdistd(8), a new auditdistd user is now 560 required during installworld. "mergemaster -p" can be used to 561 add the user prior to installworld, as documented in the handbook. 562 56320121117: 564 The sin6_scope_id member variable in struct sockaddr_in6 is now 565 filled by the kernel before passing the structure to the userland via 566 sysctl or routing socket. This means the KAME-specific embedded scope 567 id in sin6_addr.s6_addr[2] is always cleared in userland application. 568 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 569 __FreeBSD_version is bumped to 1000025. 570 57120121105: 572 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 573 This means that the world and kernel will be compiled with clang 574 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 575 and /usr/bin/cpp. To disable this behavior and revert to building 576 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 577 of current may need to bootstrap WITHOUT_CLANG first if the clang 578 build fails (its compatibility window doesn't extend to the 9 stable 579 branch point). 580 58120121102: 582 The IPFIREWALL_FORWARD kernel option has been removed. Its 583 functionality now turned on by default. 584 58520121023: 586 The ZERO_COPY_SOCKET kernel option has been removed and 587 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 588 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 589 mechanism which is not safe and may result in kernel crashes. 590 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 591 driver supports disposeable external page sized mbuf storage. 592 Proper replacements for both zero-copy mechanisms are under 593 consideration and will eventually lead to complete removal 594 of the two kernel options. 595 59620121023: 597 The IPv4 network stack has been converted to network byte 598 order. The following modules need to be recompiled together 599 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 600 pf(4), ipfw(4), ng_ipfw(4), stf(4). 601 60220121022: 603 Support for non-MPSAFE filesystems was removed from VFS. The 604 VFS_VERSION was bumped, all filesystem modules shall be 605 recompiled. 606 60720121018: 608 All the non-MPSAFE filesystems have been disconnected from 609 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 610 portalfs, smbfs, xfs. 611 61220121016: 613 The interface cloning API and ABI has changed. The following 614 modules need to be recompiled together with kernel: 615 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 616 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 617 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 618 61920121015: 620 The sdhci driver was split in two parts: sdhci (generic SD Host 621 Controller logic) and sdhci_pci (actual hardware driver). 622 No kernel config modifications are required, but if you 623 load sdhc as a module you must switch to sdhci_pci instead. 624 62520121014: 626 Import the FUSE kernel and userland support into base system. 627 62820121013: 629 The GNU sort(1) program has been removed since the BSD-licensed 630 sort(1) has been the default for quite some time and no serious 631 problems have been reported. The corresponding WITH_GNU_SORT 632 knob has also gone. 633 63420121006: 635 The pfil(9) API/ABI for AF_INET family has been changed. Packet 636 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 637 with new kernel. 638 63920121001: 640 The net80211(4) ABI has been changed to allow for improved driver 641 PS-POLL and power-save support. All wireless drivers need to be 642 recompiled to work with the new kernel. 643 64420120913: 645 The random(4) support for the VIA hardware random number 646 generator (`PADLOCK') is no longer enabled unconditionally. 647 Add the padlock_rng device in the custom kernel config if 648 needed. The GENERIC kernels on i386 and amd64 do include the 649 device, so the change only affects the custom kernel 650 configurations. 651 65220120908: 653 The pf(4) packet filter ABI has been changed. pfctl(8) and 654 snmp_pf module need to be recompiled to work with new kernel. 655 65620120828: 657 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 658 to -HEAD. Pools that have empty_bpobj in active state can not be 659 imported read-write with ZFS implementations that do not support 660 this feature. For more information read the zpool-features(5) 661 manual page. 662 66320120727: 664 The sparc64 ZFS loader has been changed to no longer try to auto- 665 detect ZFS providers based on diskN aliases but now requires these 666 to be explicitly listed in the OFW boot-device environment variable. 667 66820120712: 669 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 670 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 671 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 672 67320120712: 674 The following sysctls and tunables have been renamed for consistency 675 with other variables: 676 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 677 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 678 67920120628: 680 The sort utility has been replaced with BSD sort. For now, GNU sort 681 is also available as "gnusort" or the default can be set back to 682 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 683 installed as "bsdsort". 684 68520120611: 686 A new version of ZFS (pool version 5000) has been merged to -HEAD. 687 Starting with this version the old system of ZFS pool versioning 688 is superseded by "feature flags". This concept enables forward 689 compatibility against certain future changes in functionality of ZFS 690 pools. The first read-only compatible "feature flag" for ZFS pools 691 is named "com.delphix:async_destroy". For more information 692 read the new zpool-features(5) manual page. 693 Please refer to the "ZFS notes" section of this file for information 694 on upgrading boot ZFS pools. 695 69620120417: 697 The malloc(3) implementation embedded in libc now uses sources imported 698 as contrib/jemalloc. The most disruptive API change is to 699 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 700 delete it prior to installworld, and optionally re-create it using the 701 new format after rebooting. See malloc.conf(5) for details 702 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 703 NAMESPACE section). 704 70520120328: 706 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 707 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 708 now spelled mips. This is to aid compatibility with third-party 709 software that expects this naming scheme in uname(3). Little-endian 710 settings are unchanged. If you are updating a big-endian mips64 machine 711 from before this change, you may need to set MACHINE_ARCH=mips64 in 712 your environment before the new build system will recognize your machine. 713 71420120306: 715 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 716 platforms. 717 71820120229: 719 Now unix domain sockets behave "as expected" on nullfs(5). Previously 720 nullfs(5) did not pass through all behaviours to the underlying layer, 721 as a result if we bound to a socket on the lower layer we could connect 722 only to the lower path; if we bound to the upper layer we could connect 723 only to the upper path. The new behavior is one can connect to both the 724 lower and the upper paths regardless what layer path one binds to. 725 72620120211: 727 The getifaddrs upgrade path broken with 20111215 has been restored. 728 If you have upgraded in between 20111215 and 20120209 you need to 729 recompile libc again with your kernel. You still need to recompile 730 world to be able to configure CARP but this restriction already 731 comes from 20111215. 732 73320120114: 734 The set_rcvar() function has been removed from /etc/rc.subr. All 735 base and ports rc.d scripts have been updated, so if you have a 736 port installed with a script in /usr/local/etc/rc.d you can either 737 hand-edit the rcvar= line, or reinstall the port. 738 739 An easy way to handle the mass-update of /etc/rc.d: 740 rm /etc/rc.d/* && mergemaster -i 741 74220120109: 743 panic(9) now stops other CPUs in the SMP systems, disables interrupts 744 on the current CPU and prevents other threads from running. 745 This behavior can be reverted using the kern.stop_scheduler_on_panic 746 tunable/sysctl. 747 The new behavior can be incompatible with kern.sync_on_panic. 748 74920111215: 750 The carp(4) facility has been changed significantly. Configuration 751 of the CARP protocol via ifconfig(8) has changed, as well as format 752 of CARP events submitted to devd(8) has changed. See manual pages 753 for more information. The arpbalance feature of carp(4) is currently 754 not supported anymore. 755 756 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 757 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 758 need to be recompiled. 759 76020111122: 761 The acpi_wmi(4) status device /dev/wmistat has been renamed to 762 /dev/wmistat0. 763 76420111108: 765 The option VFS_ALLOW_NONMPSAFE option has been added in order to 766 explicitely support non-MPSAFE filesystems. 767 It is on by default for all supported platform at this present 768 time. 769 77020111101: 771 The broken amd(4) driver has been replaced with esp(4) in the amd64, 772 i386 and pc98 GENERIC kernel configuration files. 773 77420110930: 775 sysinstall has been removed 776 77720110923: 778 The stable/9 branch created in subversion. This corresponds to the 779 RELENG_9 branch in CVS. 780 78120110913: 782 This commit modifies vfs_register() so that it uses a hash 783 calculation to set vfc_typenum, which is enabled by default. 784 The first time a system is booted after this change, the 785 vfc_typenum values will change for all file systems. The 786 main effect of this is a change to the NFS server file handles 787 for file systems that use vfc_typenum in their fsid, such as ZFS. 788 It will, however, prevent vfc_typenum from changing when file 789 systems are loaded in a different order for subsequent reboots. 790 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 791 until you are ready to remount all NFS clients after a reboot. 792 79320110828: 794 Bump the shared library version numbers for libraries that 795 do not use symbol versioning, have changed the ABI compared 796 to stable/8 and which shared library version was not bumped. 797 Done as part of 9.0-RELEASE cycle. 798 79920110815: 800 During the merge of Capsicum features, the fget(9) KPI was modified. 801 This may require the rebuilding of out-of-tree device drivers -- 802 issues have been reported specifically with the nVidia device driver. 803 __FreeBSD_version is bumped to 900041. 804 805 Also, there is a period between 20110811 and 20110814 where the 806 special devices /dev/{stdin,stdout,stderr} did not work correctly. 807 Building world from a kernel during that window may not work. 808 80920110628: 810 The packet filter (pf) code has been updated to OpenBSD 4.5. 811 You need to update userland tools to be in sync with kernel. 812 This update breaks backward compatibility with earlier pfsync(4) 813 versions. Care must be taken when updating redundant firewall setups. 814 81520110608: 816 The following sysctls and tunables are retired on x86 platforms: 817 machdep.hlt_cpus 818 machdep.hlt_logical_cpus 819 The following sysctl is retired: 820 machdep.hyperthreading_allowed 821 The sysctls were supposed to provide a way to dynamically offline and 822 online selected CPUs on x86 platforms, but the implementation has not 823 been reliable especially with SCHED_ULE scheduler. 824 machdep.hyperthreading_allowed tunable is still available to ignore 825 hyperthreading CPUs at OS level. 826 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 827 where X is an APIC ID of a CPU. Be advised, though, that disabling 828 CPUs in non-uniform fashion will result in non-uniform topology and 829 may lead to sub-optimal system performance with SCHED_ULE, which is 830 a default scheduler. 831 83220110607: 833 cpumask_t type is retired and cpuset_t is used in order to describe 834 a mask of CPUs. 835 83620110531: 837 Changes to ifconfig(8) for dynamic address family detection mandate 838 that you are running a kernel of 20110525 or later. Make sure to 839 follow the update procedure to boot a new kernel before installing 840 world. 841 84220110513: 843 Support for sun4v architecture is officially dropped 844 84520110503: 846 Several KPI breaking changes have been committed to the mii(4) layer, 847 the PHY drivers and consequently some Ethernet drivers using mii(4). 848 This means that miibus.ko and the modules of the affected Ethernet 849 drivers need to be recompiled. 850 851 Note to kernel developers: Given that the OUI bit reversion problem 852 was fixed as part of these changes all mii(4) commits related to OUIs, 853 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 854 handling, no longer can be merged verbatim to stable/8 and previous 855 branches. 856 85720110430: 858 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 859 into their kernel configurations along with 'device pci'. 860 86120110427: 862 The default NFS client is now the new NFS client, so fstype "newnfs" 863 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 864 Although mounts via fstype "nfs" will usually work without userland 865 changes, it is recommended that the mount(8) and mount_nfs(8) 866 commands be rebuilt from sources and that a link to mount_nfs called 867 mount_oldnfs be created. The new client is compiled into the 868 kernel with "options NFSCL" and this is needed for diskless root 869 file systems. The GENERIC kernel configs have been changed to use 870 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 871 To use the regular/old client, you can "mount -t oldnfs ...". For 872 a diskless root file system, you must also include a line like: 873 874 vfs.root.mountfrom="oldnfs:" 875 876 in the boot/loader.conf on the root fs on the NFS server to make 877 a diskless root fs use the old client. 878 87920110424: 880 The GENERIC kernels for all architectures now default to the new 881 CAM-based ATA stack. It means that all legacy ATA drivers were 882 removed and replaced by respective CAM drivers. If you are using 883 ATA device names in /etc/fstab or other places, make sure to update 884 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 885 where 'Y's are the sequential numbers starting from zero for each type 886 in order of detection, unless configured otherwise with tunables, 887 see cam(4)). There will be symbolic links created in /dev/ to map 888 old adX devices to the respective adaY. They should provide basic 889 compatibility for file systems mounting in most cases, but they do 890 not support old user-level APIs and do not have respective providers 891 in GEOM. Consider using updated management tools with new device names. 892 893 It is possible to load devices ahci, ata, siis and mvs as modules, 894 but option ATA_CAM should remain in kernel configuration to make ata 895 module work as CAM driver supporting legacy ATA controllers. Device ata 896 still can be used in modular fashion (atacore + ...). Modules atadisk 897 and atapi* are not used and won't affect operation in ATA_CAM mode. 898 Note that to use CAM-based ATA kernel should include CAM devices 899 scbus, pass, da (or explicitly ada), cd and optionally others. All of 900 them are parts of the cam module. 901 902 ataraid(4) functionality is now supported by the RAID GEOM class. 903 To use it you can load geom_raid kernel module and use graid(8) tool 904 for management. Instead of /dev/arX device names, use /dev/raid/rX. 905 906 No kernel config options or code have been removed, so if a problem 907 arises, please report it and optionally revert to the old ATA stack. 908 In order to do it you can remove from the kernel config: 909 options ATA_CAM 910 device ahci 911 device mvs 912 device siis 913 , and instead add back: 914 device atadisk # ATA disk drives 915 device ataraid # ATA RAID drives 916 device atapicd # ATAPI CDROM drives 917 device atapifd # ATAPI floppy drives 918 device atapist # ATAPI tape drives 919 92020110423: 921 The default NFS server has been changed to the new server, which 922 was referred to as the experimental server. If you need to switch 923 back to the old NFS server, you must now put the "-o" option on 924 both the mountd and nfsd commands. This can be done using the 925 mountd_flags and nfs_server_flags rc.conf variables until an 926 update to the rc scripts is committed, which is coming soon. 927 92820110418: 929 The GNU Objective-C runtime library (libobjc), and other Objective-C 930 related components have been removed from the base system. If you 931 require an Objective-C library, please use one of the available ports. 932 93320110331: 934 ath(4) has been split into bus- and device- modules. if_ath contains 935 the HAL, the TX rate control and the network device code. if_ath_pci 936 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 937 contains the AHB glue. Users need to load both if_ath_pci and if_ath 938 in order to use ath on everything else. 939 940 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 941 need to load if_ath and if_ath_pci for ath(4) operation. 942 94320110314: 944 As part of the replacement of sysinstall, the process of building 945 release media has changed significantly. For details, please re-read 946 release(7), which has been updated to reflect the new build process. 947 94820110218: 949 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 950 is the last available version under GPLv2. It brings a number of new 951 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 952 4.1 and SSE 4.2), better support for powerpc64, a number of new 953 directives, and lots of other small improvements. See the ChangeLog 954 file in contrib/binutils for the full details. 955 95620110218: 957 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 958 compliant, and will now use half of hash for authentication. 959 This will break interoperability with all stacks (including all 960 actual FreeBSD versions) who implement 961 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 962 authentication). 963 The only workaround with such peers is to use another HMAC 964 algorithm for IPsec ("phase 2") authentication. 965 96620110207: 967 Remove the uio_yield prototype and symbol. This function has 968 been misnamed since it was introduced and should not be 969 globally exposed with this name. The equivalent functionality 970 is now available using kern_yield(curthread->td_user_pri). 971 The function remains undocumented. 972 97320110112: 974 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 975 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 976 for scalar sysctls is defined but disabled. Code that needs 977 UQUAD to pass the type checking that must compile on older 978 systems where the define is not present can check against 979 __FreeBSD_version >= 900030. 980 981 The system dialog(1) has been replaced with a new version previously 982 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 983 with the previous version, but the libdialog associated with it has 984 a largely incompatible API. As such, the original version of libdialog 985 will be kept temporarily as libodialog, until its base system consumers 986 are replaced or updated. Bump __FreeBSD_version to 900030. 987 98820110103: 989 If you are trying to run make universe on a -stable system, and you get 990 the following warning: 991 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 992 unknown. config(8) likely too old." 993 or something similar to it, then you must upgrade your -stable system 994 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 995 stable/8) or build the config from the latest stable/8 branch and 996 install it on your system. 997 998 Prior to this date, building a current universe on 8-stable system from 999 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 1000 error in the first kernel build phase. A new config on those old 1001 systems will fix that problem for older versions of -current. 1002 100320101228: 1004 The TCP stack has been modified to allow Khelp modules to interact with 1005 it via helper hook points and store per-connection data in the TCP 1006 control block. Bump __FreeBSD_version to 900029. User space tools that 1007 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 1008 be recompiled. 1009 101020101114: 1011 Generic IEEE 802.3 annex 31B full duplex flow control support has been 1012 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 1013 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 1014 to take advantage of it instead of using custom implementations. This 1015 means that these drivers now no longer unconditionally advertise 1016 support for flow control but only do so if flow control is a selected 1017 media option. This was implemented in the generic support that way in 1018 order to allow flow control to be switched on and off via ifconfig(8) 1019 with the PHY specific default to typically off in order to protect 1020 from unwanted effects. Consequently, if you used flow control with 1021 one of the above mentioned drivers you now need to explicitly enable 1022 it, for example via: 1023 ifconfig bge0 media auto mediaopt flowcontrol 1024 1025 Along with the above mentioned changes generic support for setting 1026 1000baseT master mode also has been added and brgphy(4), ciphy(4), 1027 e1000phy(4) as well as ip1000phy(4) have been converted to take 1028 advantage of it. This means that these drivers now no longer take the 1029 link0 parameter for selecting master mode but the master media option 1030 has to be used instead, for example like in the following: 1031 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 1032 1033 Selection of master mode now is also available with all other PHY 1034 drivers supporting 1000baseT. 1035 103620101111: 1037 The TCP stack has received a significant update to add support for 1038 modularised congestion control and generally improve the clarity of 1039 congestion control decisions. Bump __FreeBSD_version to 900025. User 1040 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 1041 sockstat) need to be recompiled. 1042 104320101002: 1044 The man(1) utility has been replaced by a new version that no longer 1045 uses /etc/manpath.config. Please consult man.conf(5) for how to 1046 migrate local entries to the new format. 1047 104820100928: 1049 The copyright strings printed by login(1) and sshd(8) at the time of a 1050 new connection have been removed to follow other operating systems and 1051 upstream sshd. 1052 105320100915: 1054 A workaround for a fixed ld bug has been removed in kernel code, 1055 so make sure that your system ld is built from sources after 1056 revision 210245 from 2010-07-19 (r211583 if building head kernel 1057 on stable/8, r211584 for stable/7; both from 2010-08-21). 1058 A symptom of incorrect ld version is different addresses for 1059 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 1060 106120100913: 1062 The $ipv6_prefer variable in rc.conf(5) has been split into 1063 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 1064 1065 The $ip6addrctl_policy is a variable to choose a pre-defined 1066 address selection policy set by ip6addrctl(8). A value 1067 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 1068 default is "AUTO". 1069 1070 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 1071 flag (see an entry of 20090926) is set on an interface with no 1072 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 1073 security reason. If you want IPv6 link-local address on all 1074 interfaces by default, set this to "YES". 1075 1076 The old ipv6_prefer="YES" is equivalent to 1077 ipv6_activate_all_interfaces="YES" and 1078 ip6addrctl_policy="ipv6_prefer". 1079 108020100913: 1081 DTrace has grown support for userland tracing. Due to this, DTrace is 1082 now i386 and amd64 only. 1083 dtruss(1) is now installed by default on those systems and a new 1084 kernel module is needed for userland tracing: fasttrap. 1085 No changes to your kernel config file are necessary to enable 1086 userland tracing, but you might consider adding 'STRIP=' and 1087 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 1088 to have informative userland stack traces in DTrace (ustack). 1089 109020100725: 1091 The acpi_aiboost(4) driver has been removed in favor of the new 1092 aibs(4) driver. You should update your kernel configuration file. 1093 109420100722: 1095 BSD grep has been imported to the base system and it is built by 1096 default. It is completely BSD licensed, highly GNU-compatible, uses 1097 less memory than its GNU counterpart and has a small codebase. 1098 However, it is slower than its GNU counterpart, which is mostly 1099 noticeable for larger searches, for smaller ones it is measurable 1100 but not significant. The reason is complex, the most important factor 1101 is that we lack a modern and efficient regex library and GNU 1102 overcomes this by optimizing the searches internally. Future work 1103 on improving the regex performance is planned, for the meantime, 1104 users that need better performance, can build GNU grep instead by 1105 setting the WITH_GNU_GREP knob. 1106 110720100713: 1108 Due to the import of powerpc64 support, all existing powerpc kernel 1109 configuration files must be updated with a machine directive like this: 1110 machine powerpc powerpc 1111 1112 In addition, an updated config(8) is required to build powerpc kernels 1113 after this change. 1114 111520100713: 1116 A new version of ZFS (version 15) has been merged to -HEAD. 1117 This version uses a python library for the following subcommands: 1118 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 1119 For full functionality of these commands the following port must 1120 be installed: sysutils/py-zfs 1121 112220100429: 1123 'vm_page's are now hashed by physical address to an array of mutexes. 1124 Currently this is only used to serialize access to hold_count. Over 1125 time the page queue mutex will be peeled away. This changes the size 1126 of pmap on every architecture. And requires all callers of vm_page_hold 1127 and vm_page_unhold to be updated. 1128 112920100402: 1130 WITH_CTF can now be specified in src.conf (not recommended, there 1131 are some problems with static executables), make.conf (would also 1132 affect ports which do not use GNU make and do not override the 1133 compile targets) or in the kernel config (via "makeoptions 1134 WITH_CTF=yes"). 1135 When WITH_CTF was specified there before this was silently ignored, 1136 so make sure that WITH_CTF is not used in places which could lead 1137 to unwanted behavior. 1138 113920100311: 1140 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1141 to allow 32-bit compatibility on non-x86 platforms. All kernel 1142 configurations on amd64 and ia64 platforms using these options must 1143 be modified accordingly. 1144 114520100113: 1146 The utmp user accounting database has been replaced with utmpx, 1147 the user accounting interface standardized by POSIX. 1148 Unfortunately the semantics of utmp and utmpx don't match, 1149 making it practically impossible to support both interfaces. 1150 The user accounting database is used by tools like finger(1), 1151 last(1), talk(1), w(1) and ac(8). 1152 1153 All applications in the base system use utmpx. This means only 1154 local binaries (e.g. from the ports tree) may still use these 1155 utmp database files. These applications must be rebuilt to make 1156 use of utmpx. 1157 1158 After the system has been upgraded, it is safe to remove the old 1159 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1160 assuming their contents is of no importance anymore. Old wtmp 1161 databases can only be used by last(1) and ac(8) after they have 1162 been converted to the new format using wtmpcvt(1). 1163 116420100108: 1165 Introduce the kernel thread "deadlock resolver" (which can be enabled 1166 via the DEADLKRES option, see NOTES for more details) and the 1167 sleepq_type() function for sleepqueues. 1168 116920091202: 1170 The rc.firewall and rc.firewall6 were unified, and 1171 rc.firewall6 and rc.d/ip6fw were removed. 1172 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1173 variables are obsoleted. Instead, the following new rc 1174 variables are added to rc.d/ipfw: 1175 1176 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1177 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1178 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1179 1180 The meanings correspond to the relevant IPv4 variables. 1181 118220091125: 1183 8.0-RELEASE. 1184 118520091113: 1186 The default terminal emulation for syscons(4) has been changed 1187 from cons25 to xterm on all platforms except pc98. This means 1188 that the /etc/ttys file needs to be updated to ensure correct 1189 operation of applications on the console. 1190 1191 The terminal emulation style can be toggled per window by using 1192 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1193 options can be used to change the compile-time default back to 1194 cons25. 1195 1196 To prevent graphical artifacts, make sure the TERM environment 1197 variable is set to match the terminal emulation that is being 1198 performed by syscons(4). 1199 120020091109: 1201 The layout of the structure ieee80211req_scan_result has changed. 1202 Applications that require wireless scan results (e.g. ifconfig(8)) 1203 from net80211 need to be recompiled. 1204 1205 Applications such as wpa_supplicant(8) may require a full world 1206 build without using NO_CLEAN in order to get synchronized with the 1207 new structure. 1208 120920091025: 1210 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1211 There's one kernel module for each firmware. Adding "device iwnfw" 1212 to the kernel configuration file means including all three firmware 1213 images inside the kernel. If you want to include just the one for 1214 your wireless card, use the devices iwn4965fw, iwn5000fw or 1215 iwn5150fw. 1216 121720090926: 1218 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1219 into rc.d/netif. The changes are the following: 1220 1221 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1222 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1223 Note that both variables need the "inet6" keyword at the head. 1224 1225 Do not set $ipv6_network_interfaces manually if you do not 1226 understand what you are doing. It is not needed in most cases. 1227 1228 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1229 they are obsolete. 1230 1231 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1232 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1233 1234 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1235 all configured interfaces have "inet6 accept_rtadv" in the 1236 $ifconfig_IF_ipv6. These are for backward compatibility. 1237 1238 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1239 functionality of interfaces with no corresponding 1240 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1241 and the default address selection policy of ip6addrctl(8) 1242 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1243 Note that if you want to configure IPv6 functionality on the 1244 disabled interfaces after boot, first you need to clear the flag by 1245 using ifconfig(8) like: 1246 1247 ifconfig em0 inet6 -ifdisabled 1248 1249 If YES, the default address selection policy is set as 1250 IPv6-preferred. 1251 1252 The default value of $ipv6_prefer is NO. 1253 1254 4. If your system need to receive Router Advertisement messages, 1255 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1256 scripts automatically invoke rtsol(8) when the interface becomes 1257 UP. The Router Advertisement messages are used for SLAAC 1258 (State-Less Address AutoConfiguration). 1259 126020090922: 1261 802.11s D3.03 support was committed. This is incompatible with the 1262 previous code, which was based on D3.0. 1263 126420090912: 1265 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1266 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1267 control whether accepting Router Advertisement messages or not. 1268 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1269 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1270 The ifconfig(8) utility now supports these flags. 1271 127220090910: 1273 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1274 mount(8) and -a option for df(1) to see them. 1275 127620090825: 1277 The old tunable hw.bus.devctl_disable has been superseded by 1278 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1279 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1280 is 1000. 1281 128220090813: 1283 Remove the option STOP_NMI. The default action is now to use NMI only 1284 for KDB via the newly introduced function stop_cpus_hard() and 1285 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1286 128720090803: 1288 The stable/8 branch created in subversion. This corresponds to the 1289 RELENG_8 branch in CVS. 1290 129120090719: 1292 Bump the shared library version numbers for all libraries that do not 1293 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1294 __FreeBSD_version to 800105. 1295 129620090714: 1297 Due to changes in the implementation of virtual network stack support, 1298 all network-related kernel modules must be recompiled. As this change 1299 breaks the ABI, bump __FreeBSD_version to 800104. 1300 130120090713: 1302 The TOE interface to the TCP syncache has been modified to remove 1303 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1304 The cxgb driver is the only TOE consumer affected by this change, and 1305 needs to be recompiled along with the kernel. As this change breaks 1306 the ABI, bump __FreeBSD_version to 800103. 1307 130820090712: 1309 Padding has been added to struct tcpcb, sackhint and tcpstat in 1310 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1311 maintaining the ABI. However, this change breaks the ABI, so bump 1312 __FreeBSD_version to 800102. User space tools that rely on the size of 1313 any of these structs (e.g. sockstat) need to be recompiled. 1314 131520090630: 1316 The NFS_LEGACYRPC option has been removed along with the old kernel 1317 RPC implementation that this option selected. Kernel configurations 1318 may need to be adjusted. 1319 132020090629: 1321 The network interface device nodes at /dev/net/<interface> have been 1322 removed. All ioctl operations can be performed the normal way using 1323 routing sockets. The kqueue functionality can generally be replaced 1324 with routing sockets. 1325 132620090628: 1327 The documentation from the FreeBSD Documentation Project (Handbook, 1328 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1329 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1330 133120090624: 1332 The ABI of various structures related to the SYSV IPC API have been 1333 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1334 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1335 800100. 1336 133720090622: 1338 Layout of struct vnet has changed as routing related variables were 1339 moved to their own Vimage module. Modules need to be recompiled. Bump 1340 __FreeBSD_version to 800099. 1341 134220090619: 1343 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1344 respectively. As long as no more than 16 groups per process are used, 1345 no changes should be visible. When more than 16 groups are used, old 1346 binaries may fail if they call getgroups() or getgrouplist() with 1347 statically sized storage. Recompiling will work around this, but 1348 applications should be modified to use dynamically allocated storage 1349 for group arrays as POSIX.1-2008 does not cap an implementation's 1350 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1351 1352 NFS and portalfs mounts may also be affected as the list of groups is 1353 truncated to 16. Users of NFS who use more than 16 groups, should 1354 take care that negative group permissions are not used on the exported 1355 file systems as they will not be reliable unless a GSSAPI based 1356 authentication method is used. 1357 135820090616: 1359 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1360 option compiles in the support for adaptive spinning for lockmgrs 1361 which want to enable it. The lockinit() function now accepts the flag 1362 LK_ADAPTIVE in order to make the lock object subject to adaptive 1363 spinning when both held in write and read mode. 1364 136520090613: 1366 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1367 changed. User applications that use this ioctl need to be rebuilt. 1368 136920090611: 1370 The layout of struct thread has changed. Kernel and modules need to 1371 be rebuilt. 1372 137320090608: 1374 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1375 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1376 137720090602: 1378 window(1) has been removed from the base system. It can now be 1379 installed from ports. The port is called misc/window. 1380 138120090601: 1382 The way we are storing and accessing `routing table' entries has 1383 changed. Programs reading the FIB, like netstat, need to be 1384 re-compiled. 1385 138620090601: 1387 A new netisr implementation has been added for FreeBSD 8. Network 1388 file system modules, such as igmp, ipdivert, and others, should be 1389 rebuilt. 1390 Bump __FreeBSD_version to 800096. 1391 139220090530: 1393 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1394 more valid. 1395 139620090530: 1397 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1398 Bump __FreeBSD_version to 800094. 1399 140020090529: 1401 Add mnt_xflag field to 'struct mount'. File system modules need to be 1402 rebuilt. 1403 Bump __FreeBSD_version to 800093. 1404 140520090528: 1406 The compiling option ADAPTIVE_SX has been retired while it has been 1407 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1408 The KPI for sx_init_flags() changes as accepting flags: 1409 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1410 been introduced in order to handle the reversed logic. 1411 Bump __FreeBSD_version to 800092. 1412 141320090527: 1414 Add support for hierarchical jails. Remove global securelevel. 1415 Bump __FreeBSD_version to 800091. 1416 141720090523: 1418 The layout of struct vnet_net has changed, therefore modules 1419 need to be rebuilt. 1420 Bump __FreeBSD_version to 800090. 1421 142220090523: 1423 The newly imported zic(8) produces a new format in the output. Please 1424 run tzsetup(8) to install the newly created data to /etc/localtime. 1425 142620090520: 1427 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1428 hw.usb.* and is now consistent again with previous releases. 1429 143020090520: 1431 802.11 monitor mode support was revised and driver api's were changed. 1432 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1433 of DLT_IEEE802_11. No user-visible data structures were changed but 1434 applications that use DLT_IEEE802_11 may require changes. 1435 Bump __FreeBSD_version to 800088. 1436 143720090430: 1438 The layout of the following structs has changed: sysctl_oid, 1439 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1440 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1441 panics may be experienced. World rebuild is required for 1442 correctly checking networking state from userland. 1443 Bump __FreeBSD_version to 800085. 1444 144520090429: 1446 MLDv2 and Source-Specific Multicast (SSM) have been merged 1447 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1448 The implementation of SSM within FreeBSD's IPv6 stack closely 1449 follows the IPv4 implementation. 1450 1451 For kernel developers: 1452 1453 * The most important changes are that the ip6_output() and 1454 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1455 and this lock has been downgraded to a non-recursive mutex. 1456 1457 * As with the changes to the IPv4 stack to support SSM, filtering 1458 of inbound multicast traffic must now be performed by transport 1459 protocols within the IPv6 stack. This does not apply to TCP and 1460 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1461 1462 * The KPIs used by IPv6 multicast are similar to those used by 1463 the IPv4 stack, with the following differences: 1464 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1465 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1466 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1467 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1468 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1469 for MLDv1 have an additional 'timer' argument which is used to 1470 jitter the initial membership report for the solicited-node 1471 multicast membership on-link. 1472 * This is not strictly needed for MLDv2, which already jitters 1473 its report transmissions. However, the 'timer' argument is 1474 preserved in case MLDv1 is active on the interface. 1475 1476 * The KAME linked-list based IPv6 membership implementation has 1477 been refactored to use a vector similar to that used by the IPv4 1478 stack. 1479 Code which maintains a list of its own multicast memberships 1480 internally, e.g. carp, has been updated to reflect the new 1481 semantics. 1482 1483 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1484 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1485 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1486 implementation constraint which needs to be addressed in HEAD. 1487 1488 For application developers: 1489 1490 * The changes are broadly similar to those made for the IPv4 1491 stack. 1492 1493 * The use of IPv4 and IPv6 multicast socket options on the same 1494 socket, using mapped addresses, HAS NOT been tested or supported. 1495 1496 * There are a number of issues with the implementation of various 1497 IPv6 multicast APIs which need to be resolved in the API surface 1498 before the implementation is fully compatible with KAME userland 1499 use, and these are mostly to do with interface index treatment. 1500 1501 * The literature available discusses the use of either the delta / ASM 1502 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1503 using setsourcefilter(3)/getsourcefilter(3). For more information 1504 please refer to RFC 3768, 'Socket Interface Extensions for 1505 Multicast Source Filters'. 1506 1507 * Applications which use the published RFC 3678 APIs should be fine. 1508 1509 For systems administrators: 1510 1511 * The mtest(8) utility has been refactored to support IPv6, in 1512 addition to IPv4. Interface addresses are no longer accepted 1513 as arguments, their names must be used instead. The utility 1514 will map the interface name to its first IPv4 address as 1515 returned by getifaddrs(3). 1516 1517 * The ifmcstat(8) utility has also been updated to print the MLDv2 1518 endpoint state and source filter lists via sysctl(3). 1519 1520 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1521 loopback of IPv6 multicast datagrams by default; it defaults to 1 1522 to preserve the existing behaviour. Disabling multicast loopback is 1523 recommended for optimal system performance. 1524 1525 * The IPv6 MROUTING code has been changed to examine this sysctl 1526 instead of attempting to perform a group lookup before looping 1527 back forwarded datagrams. 1528 1529 Bump __FreeBSD_version to 800084. 1530 153120090422: 1532 Implement low-level Bluetooth HCI API. 1533 Bump __FreeBSD_version to 800083. 1534 153520090419: 1536 The layout of struct malloc_type, used by modules to register new 1537 memory allocation types, has changed. Most modules will need to 1538 be rebuilt or panics may be experienced. 1539 Bump __FreeBSD_version to 800081. 1540 154120090415: 1542 Anticipate overflowing inp_flags - add inp_flags2. 1543 This changes most offsets in inpcb, so checking v4 connection 1544 state will require a world rebuild. 1545 Bump __FreeBSD_version to 800080. 1546 154720090415: 1548 Add an llentry to struct route and struct route_in6. Modules 1549 embedding a struct route will need to be recompiled. 1550 Bump __FreeBSD_version to 800079. 1551 155220090414: 1553 The size of rt_metrics_lite and by extension rtentry has changed. 1554 Networking administration apps will need to be recompiled. 1555 The route command now supports show as an alias for get, weighting 1556 of routes, sticky and nostick flags to alter the behavior of stateful 1557 load balancing. 1558 Bump __FreeBSD_version to 800078. 1559 156020090408: 1561 Do not use Giant for kbdmux(4) locking. This is wrong and 1562 apparently causing more problems than it solves. This will 1563 re-open the issue where interrupt handlers may race with 1564 kbdmux(4) in polling mode. Typical symptoms include (but 1565 not limited to) duplicated and/or missing characters when 1566 low level console functions (such as gets) are used while 1567 interrupts are enabled (for example geli password prompt, 1568 mountroot prompt etc.). Disabling kbdmux(4) may help. 1569 157020090407: 1571 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1572 kernel modules referencing any of the above need to be recompiled. 1573 Bump __FreeBSD_version to 800075. 1574 157520090320: 1576 GEOM_PART has become the default partition slicer for storage devices, 1577 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1578 introduces some changes: 1579 1580 MSDOS/EBR: the devices created from MSDOS extended partition entries 1581 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1582 to devices with offset-based names. fstabs may need to be modified. 1583 1584 BSD: the "geometry does not match label" warning is harmless in most 1585 cases but it points to problems in file system misalignment with 1586 disk geometry. The "c" partition is now implicit, covers the whole 1587 top-level drive and cannot be (mis)used by users. 1588 1589 General: Kernel dumps are now not allowed to be written to devices 1590 whose partition types indicate they are meant to be used for file 1591 systems (or, in case of MSDOS partitions, as something else than 1592 the "386BSD" type). 1593 1594 Most of these changes date approximately from 200812. 1595 159620090319: 1597 The uscanner(4) driver has been removed from the kernel. This follows 1598 Linux removing theirs in 2.6 and making libusb the default interface 1599 (supported by sane). 1600 160120090319: 1602 The multicast forwarding code has been cleaned up. netstat(1) 1603 only relies on KVM now for printing bandwidth upcall meters. 1604 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1605 ip6_mroute_mod respectively. The config(5) options for statically 1606 compiling this code remain the same, i.e. 'options MROUTING'. 1607 160820090315: 1609 Support for the IFF_NEEDSGIANT network interface flag has been 1610 removed, which means that non-MPSAFE network device drivers are no 1611 longer supported. In particular, if_ar, if_sr, and network device 1612 drivers from the old (legacy) USB stack can no longer be built or 1613 used. 1614 161520090313: 1616 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1617 a bunch of new language catalog files have also been added. 1618 This means that some common libc messages are now localized and 1619 they depend on the LC_MESSAGES environmental variable. 1620 162120090313: 1622 The k8temp(4) driver has been renamed to amdtemp(4) since 1623 support for Family 10 and Family 11 CPU families was added. 1624 162520090309: 1626 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1627 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1628 1629 For kernel developers, the most important changes are that the 1630 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1631 and this lock has been downgraded to a non-recursive mutex. 1632 1633 Transport protocols (UDP, Raw IP) are now responsible for filtering 1634 inbound multicast traffic according to group membership and source 1635 filters. The imo_multicast_filter() KPI exists for this purpose. 1636 Transports which do not use multicast (SCTP, TCP) already reject 1637 multicast by default. Forwarding and receive performance may improve 1638 as a mutex acquisition is no longer needed in the ip_input() 1639 low-level input path. in_addmulti() and in_delmulti() are shimmed 1640 to new KPIs which exist to support SSM in-kernel. 1641 1642 For application developers, it is recommended that loopback of 1643 multicast datagrams be disabled for best performance, as this 1644 will still cause the lock to be taken for each looped-back 1645 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1646 be tuned to 0 to disable loopback by default; it defaults to 1 1647 to preserve the existing behaviour. 1648 1649 For systems administrators, to obtain best performance with 1650 multicast reception and multiple groups, it is always recommended 1651 that a card with a suitably precise hash filter is used. Hash 1652 collisions will still result in the lock being taken within the 1653 transport protocol input path to check group membership. 1654 1655 If deploying FreeBSD in an environment with IGMP snooping switches, 1656 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1657 enabled; this forces 224.0.0.0/24 group membership to be announced 1658 via IGMP. 1659 1660 The size of 'struct igmpstat' has changed; netstat needs to be 1661 recompiled to reflect this. 1662 Bump __FreeBSD_version to 800070. 1663 166420090309: 1665 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1666 updated to use it. This requires a buildworld/installworld in order to 1667 update the library and dependencies (usbconfig, etc). Its advisable to 1668 rebuild all ports which uses libusb. More specific directions are given 1669 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1670 libusb are no longer required and can be removed. 1671 167220090302: 1673 A workaround is committed to allow the creation of System V shared 1674 memory segment of size > 2 GB on the 64-bit architectures. 1675 Due to a limitation of the existing ABI, the shm_segsz member 1676 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1677 wrong for large segments. Note that limits must be explicitly 1678 raised to allow such segments to be created. 1679 168020090301: 1681 The layout of struct ifnet has changed, requiring a rebuild of all 1682 network device driver modules. 1683 168420090227: 1685 The /dev handling for the new USB stack has changed, a 1686 buildworld/installworld is required for libusb20. 1687 168820090223: 1689 The new USB2 stack has now been permanently moved in and all kernel and 1690 module names reverted to their previous values (eg, usb, ehci, ohci, 1691 ums, ...). The old usb stack can be compiled in by prefixing the name 1692 with the letter 'o', the old usb modules have been removed. 1693 Updating entry 20090216 for xorg and 20090215 for libmap may still 1694 apply. 1695 169620090217: 1697 The rc.conf(5) option if_up_delay has been renamed to 1698 defaultroute_delay to better reflect its purpose. If you have 1699 customized this setting in /etc/rc.conf you need to update it to 1700 use the new name. 1701 170220090216: 1703 xorg 7.4 wants to configure its input devices via hald which does not 1704 yet work with USB2. If the keyboard/mouse does not work in xorg then 1705 add 1706 Option "AllowEmptyInput" "off" 1707 to your ServerLayout section. This will cause X to use the configured 1708 kbd and mouse sections from your xorg.conf. 1709 171020090215: 1711 The GENERIC kernels for all architectures now default to the new USB2 1712 stack. No kernel config options or code have been removed so if a 1713 problem arises please report it and optionally revert to the old USB 1714 stack. If you are loading USB kernel modules or have a custom kernel 1715 that includes GENERIC then ensure that usb names are also changed over, 1716 eg uftdi -> usb2_serial_ftdi. 1717 1718 Older programs linked against the ports libusb 0.1 need to be 1719 redirected to the new stack's libusb20. /etc/libmap.conf can 1720 be used for this: 1721 # Map old usb library to new one for usb2 stack 1722 libusb-0.1.so.8 libusb20.so.1 1723 172420090209: 1725 All USB ethernet devices now attach as interfaces under the name ueN 1726 (eg. ue0). This is to provide a predictable name as vendors often 1727 change usb chipsets in a product without notice. 1728 172920090203: 1730 The ichsmb(4) driver has been changed to require SMBus slave 1731 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1732 All of the other SMBus controller drivers require left-justified 1733 slave addresses, so this change makes all the drivers provide the 1734 same interface. 1735 173620090201: 1737 INET6 statistics (struct ip6stat) was updated. 1738 netstat(1) needs to be recompiled. 1739 174020090119: 1741 NTFS has been removed from GENERIC kernel on amd64 to match 1742 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1743 will load ntfs.ko module automatically when NTFS support is 1744 actually needed, unless ntfs.ko is not installed or security 1745 level prohibits loading kernel modules. If either is the case, 1746 "options NTFS" has to be added into kernel config. 1747 174820090115: 1749 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1750 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1751 800061. User space tools that rely on the size of struct tcpcb in 1752 tcp_var.h (e.g. sockstat) need to be recompiled. 1753 175420081225: 1755 ng_tty(4) module updated to match the new TTY subsystem. 1756 Due to API change, user-level applications must be updated. 1757 New API support added to mpd5 CVS and expected to be present 1758 in next mpd5.3 release. 1759 176020081219: 1761 With __FreeBSD_version 800060 the makefs tool is part of 1762 the base system (it was a port). 1763 176420081216: 1765 The afdata and ifnet locks have been changed from mutexes to 1766 rwlocks, network modules will need to be re-compiled. 1767 176820081214: 1769 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1770 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1771 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1772 architecture and 40 bytes on 64-bit architecture. The userland 1773 applications "arp" and "ndp" have been updated accordingly. 1774 The output from "netstat -r" shows only routing entries and 1775 none of the L2 information. 1776 177720081130: 1778 __FreeBSD_version 800057 marks the switchover from the 1779 binary ath hal to source code. Users must add the line: 1780 1781 options AH_SUPPORT_AR5416 1782 1783 to their kernel config files when specifying: 1784 1785 device ath_hal 1786 1787 The ath_hal module no longer exists; the code is now compiled 1788 together with the driver in the ath module. It is now 1789 possible to tailor chip support (i.e. reduce the set of chips 1790 and thereby the code size); consult ath_hal(4) for details. 1791 179220081121: 1793 __FreeBSD_version 800054 adds memory barriers to 1794 <machine/atomic.h>, new interfaces to ifnet to facilitate 1795 multiple hardware transmit queues for cards that support 1796 them, and a lock-less ring-buffer implementation to 1797 enable drivers to more efficiently manage queueing of 1798 packets. 1799 180020081117: 1801 A new version of ZFS (version 13) has been merged to -HEAD. 1802 This version has zpool attribute "listsnapshots" off by 1803 default, which means "zfs list" does not show snapshots, 1804 and is the same as Solaris behavior. 1805 180620081028: 1807 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1808 180920081009: 1810 The uhci, ohci, ehci and slhci USB Host controller drivers have 1811 been put into separate modules. If you load the usb module 1812 separately through loader.conf you will need to load the 1813 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1814 controller add the following to loader.conf: 1815 1816 uhci_load="YES" 1817 ehci_load="YES" 1818 181920081009: 1820 The ABI used by the PMC toolset has changed. Please keep 1821 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1822 sync. 1823 182420081009: 1825 atapci kernel module now includes only generic PCI ATA 1826 driver. AHCI driver moved to ataahci kernel module. 1827 All vendor-specific code moved into separate kernel modules: 1828 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1829 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1830 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1831 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1832 183320080820: 1834 The TTY subsystem of the kernel has been replaced by a new 1835 implementation, which provides better scalability and an 1836 improved driver model. Most common drivers have been migrated to 1837 the new TTY subsystem, while others have not. The following 1838 drivers have not yet been ported to the new TTY layer: 1839 1840 PCI/ISA: 1841 cy, digi, rc, rp, sio 1842 1843 USB: 1844 ubser, ucycom 1845 1846 Line disciplines: 1847 ng_h4, ng_tty, ppp, sl, snp 1848 1849 Adding these drivers to your kernel configuration file shall 1850 cause compilation to fail. 1851 185220080818: 1853 ntpd has been upgraded to 4.2.4p5. 1854 185520080801: 1856 OpenSSH has been upgraded to 5.1p1. 1857 1858 For many years, FreeBSD's version of OpenSSH preferred DSA 1859 over RSA for host and user authentication keys. With this 1860 upgrade, we've switched to the vendor's default of RSA over 1861 DSA. This may cause upgraded clients to warn about unknown 1862 host keys even for previously known hosts. Users should 1863 follow the usual procedure for verifying host keys before 1864 accepting the RSA key. 1865 1866 This can be circumvented by setting the "HostKeyAlgorithms" 1867 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1868 command line. 1869 1870 Please note that the sequence of keys offered for 1871 authentication has been changed as well. You may want to 1872 specify IdentityFile in a different order to revert this 1873 behavior. 1874 187520080713: 1876 The sio(4) driver has been removed from the i386 and amd64 1877 kernel configuration files. This means uart(4) is now the 1878 default serial port driver on those platforms as well. 1879 1880 To prevent collisions with the sio(4) driver, the uart(4) driver 1881 uses different names for its device nodes. This means the 1882 onboard serial port will now most likely be called "ttyu0" 1883 instead of "ttyd0". You may need to reconfigure applications to 1884 use the new device names. 1885 1886 When using the serial port as a boot console, be sure to update 1887 /boot/device.hints and /etc/ttys before booting the new kernel. 1888 If you forget to do so, you can still manually specify the hints 1889 at the loader prompt: 1890 1891 set hint.uart.0.at="isa" 1892 set hint.uart.0.port="0x3F8" 1893 set hint.uart.0.flags="0x10" 1894 set hint.uart.0.irq="4" 1895 boot -s 1896 189720080609: 1898 The gpt(8) utility has been removed. Use gpart(8) to partition 1899 disks instead. 1900 190120080603: 1902 The version that Linuxulator emulates was changed from 2.4.2 1903 to 2.6.16. If you experience any problems with Linux binaries 1904 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1905 if it fixes the problem contact emulation mailing list. 1906 190720080525: 1908 ISDN4BSD (I4B) was removed from the src tree. You may need to 1909 update a your kernel configuration and remove relevant entries. 1910 191120080509: 1912 I have checked in code to support multiple routing tables. 1913 See the man pages setfib(1) and setfib(2). 1914 This is a hopefully backwards compatible version, 1915 but to make use of it you need to compile your kernel 1916 with options ROUTETABLES=2 (or more up to 16). 1917 191820080420: 1919 The 802.11 wireless support was redone to enable multi-bss 1920 operation on devices that are capable. The underlying device 1921 is no longer used directly but instead wlanX devices are 1922 cloned with ifconfig. This requires changes to rc.conf files. 1923 For example, change: 1924 ifconfig_ath0="WPA DHCP" 1925 to 1926 wlans_ath0=wlan0 1927 ifconfig_wlan0="WPA DHCP" 1928 see rc.conf(5) for more details. In addition, mergemaster of 1929 /etc/rc.d is highly recommended. Simultaneous update of userland 1930 and kernel wouldn't hurt either. 1931 1932 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1933 modules were merged into the base wlan module. All references 1934 to these modules (e.g. in kernel config files) must be removed. 1935 193620080408: 1937 psm(4) has gained write(2) support in native operation level. 1938 Arbitrary commands can be written to /dev/psm%d and status can 1939 be read back from it. Therefore, an application is responsible 1940 for status validation and error recovery. It is a no-op in 1941 other operation levels. 1942 194320080312: 1944 Support for KSE threading has been removed from the kernel. To 1945 run legacy applications linked against KSE libmap.conf may 1946 be used. The following libmap.conf may be used to ensure 1947 compatibility with any prior release: 1948 1949 libpthread.so.1 libthr.so.1 1950 libpthread.so.2 libthr.so.2 1951 libkse.so.3 libthr.so.3 1952 195320080301: 1954 The layout of struct vmspace has changed. This affects libkvm 1955 and any executables that link against libkvm and use the 1956 kvm_getprocs() function. In particular, but not exclusively, 1957 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1958 The effects are minimal, but it's advisable to upgrade world 1959 nonetheless. 1960 196120080229: 1962 The latest em driver no longer has support in it for the 1963 82575 adapter, this is now moved to the igb driver. The 1964 split was done to make new features that are incompatible 1965 with older hardware easier to do. 1966 196720080220: 1968 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1969 likewise the kernel option is now GEOM_LINUX_LVM. 1970 197120080211: 1972 The default NFS mount mode has changed from UDP to TCP for 1973 increased reliability. If you rely on (insecurely) NFS 1974 mounting across a firewall you may need to update your 1975 firewall rules. 1976 197720080208: 1978 Belatedly note the addition of m_collapse for compacting 1979 mbuf chains. 1980 198120080126: 1982 The fts(3) structures have been changed to use adequate 1983 integer types for their members and so to be able to cope 1984 with huge file trees. The old fts(3) ABI is preserved 1985 through symbol versioning in libc, so third-party binaries 1986 using fts(3) should still work, although they will not take 1987 advantage of the extended types. At the same time, some 1988 third-party software might fail to build after this change 1989 due to unportable assumptions made in its source code about 1990 fts(3) structure members. Such software should be fixed 1991 by its vendor or, in the worst case, in the ports tree. 1992 FreeBSD_version 800015 marks this change for the unlikely 1993 case that a portable fix is impossible. 1994 199520080123: 1996 To upgrade to -current after this date, you must be running 1997 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1998 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1999 200020071128: 2001 The ADAPTIVE_GIANT kernel option has been retired because its 2002 functionality is the default now. 2003 200420071118: 2005 The AT keyboard emulation of sunkbd(4) has been turned on 2006 by default. In order to make the special symbols of the Sun 2007 keyboards driven by sunkbd(4) work under X these now have 2008 to be configured the same way as Sun USB keyboards driven 2009 by ukbd(4) (which also does AT keyboard emulation), f.e.: 2010 2011 Option "XkbLayout" "us" 2012 Option "XkbRules" "xorg" 2013 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 2014 201520071024: 2016 It has been decided that it is desirable to provide ABI 2017 backwards compatibility to the FreeBSD 4/5/6 versions of the 2018 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 2019 broken with the introduction of PCI domain support (see the 2020 20070930 entry). Unfortunately, this required the ABI of 2021 PCIOCGETCONF to be broken again in order to be able to 2022 provide backwards compatibility to the old version of that 2023 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 2024 again. As for prominent ports this affects neither pciutils 2025 nor xorg-server this time, the hal port needs to be rebuilt 2026 however. 2027 202820071020: 2029 The misnamed kthread_create() and friends have been renamed 2030 to kproc_create() etc. Many of the callers already 2031 used kproc_start().. 2032 I will return kthread_create() and friends in a while 2033 with implementations that actually create threads, not procs. 2034 Renaming corresponds with version 800002. 2035 203620071010: 2037 RELENG_7 branched. 2038 2039COMMON ITEMS: 2040 2041 General Notes 2042 ------------- 2043 Avoid using make -j when upgrading. While generally safe, there are 2044 sometimes problems using -j to upgrade. If your upgrade fails with 2045 -j, please try again without -j. From time to time in the past there 2046 have been problems using -j with buildworld and/or installworld. This 2047 is especially true when upgrading between "distant" versions (eg one 2048 that cross a major release boundary or several minor releases, or when 2049 several months have passed on the -current branch). 2050 2051 Sometimes, obscure build problems are the result of environment 2052 poisoning. This can happen because the make utility reads its 2053 environment when searching for values for global variables. To run 2054 your build attempts in an "environmental clean room", prefix all make 2055 commands with 'env -i '. See the env(1) manual page for more details. 2056 2057 When upgrading from one major version to another it is generally best 2058 to upgrade to the latest code in the currently installed branch first, 2059 then do an upgrade to the new branch. This is the best-tested upgrade 2060 path, and has the highest probability of being successful. Please try 2061 this approach before reporting problems with a major version upgrade. 2062 2063 When upgrading a live system, having a root shell around before 2064 installing anything can help undo problems. Not having a root shell 2065 around can lead to problems if pam has changed too much from your 2066 starting point to allow continued authentication after the upgrade. 2067 2068 ZFS notes 2069 --------- 2070 When upgrading the boot ZFS pool to a new version, always follow 2071 these two steps: 2072 2073 1.) recompile and reinstall the ZFS boot loader and boot block 2074 (this is part of "make buildworld" and "make installworld") 2075 2076 2.) update the ZFS boot block on your boot drive 2077 2078 The following example updates the ZFS boot block on the first 2079 partition (freebsd-boot) of a GPT partitioned drive ad0: 2080 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 2081 2082 Non-boot pools do not need these updates. 2083 2084 To build a kernel 2085 ----------------- 2086 If you are updating from a prior version of FreeBSD (even one just 2087 a few days old), you should follow this procedure. It is the most 2088 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 2089 2090 make kernel-toolchain 2091 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 2092 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 2093 2094 To test a kernel once 2095 --------------------- 2096 If you just want to boot a kernel once (because you are not sure 2097 if it works, or if you want to boot a known bad kernel to provide 2098 debugging information) run 2099 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 2100 nextboot -k testkernel 2101 2102 To just build a kernel when you know that it won't mess you up 2103 -------------------------------------------------------------- 2104 This assumes you are already running a CURRENT system. Replace 2105 ${arch} with the architecture of your machine (e.g. "i386", 2106 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 2107 2108 cd src/sys/${arch}/conf 2109 config KERNEL_NAME_HERE 2110 cd ../compile/KERNEL_NAME_HERE 2111 make depend 2112 make 2113 make install 2114 2115 If this fails, go to the "To build a kernel" section. 2116 2117 To rebuild everything and install it on the current system. 2118 ----------------------------------------------------------- 2119 # Note: sometimes if you are running current you gotta do more than 2120 # is listed here if you are upgrading from a really old current. 2121 2122 <make sure you have good level 0 dumps> 2123 make buildworld 2124 make kernel KERNCONF=YOUR_KERNEL_HERE 2125 [1] 2126 <reboot in single user> [3] 2127 mergemaster -p [5] 2128 make installworld 2129 mergemaster -i [4] 2130 make delete-old [6] 2131 <reboot> 2132 2133 To cross-install current onto a separate partition 2134 -------------------------------------------------- 2135 # In this approach we use a separate partition to hold 2136 # current's root, 'usr', and 'var' directories. A partition 2137 # holding "/", "/usr" and "/var" should be about 2GB in 2138 # size. 2139 2140 <make sure you have good level 0 dumps> 2141 <boot into -stable> 2142 make buildworld 2143 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2144 <maybe newfs current's root partition> 2145 <mount current's root partition on directory ${CURRENT_ROOT}> 2146 make installworld DESTDIR=${CURRENT_ROOT} 2147 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2148 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2149 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2150 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2151 <reboot into current> 2152 <do a "native" rebuild/install as described in the previous section> 2153 <maybe install compatibility libraries from ports/misc/compat*> 2154 <reboot> 2155 2156 2157 To upgrade in-place from stable to current 2158 ---------------------------------------------- 2159 <make sure you have good level 0 dumps> 2160 make buildworld [9] 2161 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2162 [1] 2163 <reboot in single user> [3] 2164 mergemaster -p [5] 2165 make installworld 2166 mergemaster -i [4] 2167 make delete-old [6] 2168 <reboot> 2169 2170 Make sure that you've read the UPDATING file to understand the 2171 tweaks to various things you need. At this point in the life 2172 cycle of current, things change often and you are on your own 2173 to cope. The defaults can also change, so please read ALL of 2174 the UPDATING entries. 2175 2176 Also, if you are tracking -current, you must be subscribed to 2177 freebsd-current@freebsd.org. Make sure that before you update 2178 your sources that you have read and understood all the recent 2179 messages there. If in doubt, please track -stable which has 2180 much fewer pitfalls. 2181 2182 [1] If you have third party modules, such as vmware, you 2183 should disable them at this point so they don't crash your 2184 system on reboot. 2185 2186 [3] From the bootblocks, boot -s, and then do 2187 fsck -p 2188 mount -u / 2189 mount -a 2190 cd src 2191 adjkerntz -i # if CMOS is wall time 2192 Also, when doing a major release upgrade, it is required that 2193 you boot into single user mode to do the installworld. 2194 2195 [4] Note: This step is non-optional. Failure to do this step 2196 can result in a significant reduction in the functionality of the 2197 system. Attempting to do it by hand is not recommended and those 2198 that pursue this avenue should read this file carefully, as well 2199 as the archives of freebsd-current and freebsd-hackers mailing lists 2200 for potential gotchas. The -U option is also useful to consider. 2201 See mergemaster(8) for more information. 2202 2203 [5] Usually this step is a noop. However, from time to time 2204 you may need to do this if you get unknown user in the following 2205 step. It never hurts to do it all the time. You may need to 2206 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2207 install) after the buildworld before this step if you last updated 2208 from current before 20130425 or from -stable before 20130430. 2209 2210 [6] This only deletes old files and directories. Old libraries 2211 can be deleted by "make delete-old-libs", but you have to make 2212 sure that no program is using those libraries anymore. 2213 2214 [8] In order to have a kernel that can run the 4.x binaries needed to 2215 do an installworld, you must include the COMPAT_FREEBSD4 option in 2216 your kernel. Failure to do so may leave you with a system that is 2217 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2218 required to run the 5.x binaries on more recent kernels. And so on 2219 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2220 2221 Make sure that you merge any new devices from GENERIC since the 2222 last time you updated your kernel config file. 2223 2224 [9] When checking out sources, you must include the -P flag to have 2225 cvs prune empty directories. 2226 2227 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2228 "?=" instead of the "=" assignment operator, so that buildworld can 2229 override the CPUTYPE if it needs to. 2230 2231 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2232 not on the command line, or in /etc/make.conf. buildworld will 2233 warn if it is improperly defined. 2234FORMAT: 2235 2236This file contains a list, in reverse chronological order, of major 2237breakages in tracking -current. It is not guaranteed to be a complete 2238list of such breakages, and only contains entries since October 10, 2007. 2239If you need to see UPDATING entries from before that date, you will need 2240to fetch an UPDATING file from an older FreeBSD release. 2241 2242Copyright information: 2243 2244Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2245 2246Redistribution, publication, translation and use, with or without 2247modification, in full or in part, in any form or format of this 2248document are permitted without further permission from the author. 2249 2250THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2251IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2252WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2253DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2254INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2255(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2256SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2257HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2258STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2259IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2260POSSIBILITY OF SUCH DAMAGE. 2261 2262Contact Warner Losh if you have any questions about your use of 2263this document. 2264 2265$FreeBSD: stable/10/UPDATING 290783 2015-11-13 19:39:36Z mav $ 2266