UPDATING revision 299066
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 1920160504 p2 FreeBSD-SA-16:17.openssl 20 FreeBSD-EN-16:06.libc 21 FreeBSD-EN-16:07.ipi 22 FreeBSD-EN-16:08.zfs 23 24 Fix multiple OpenSSL vulnerabilitites. [SA-16:17] 25 26 Fix performance regression in libc hash(3). [EN-16:06] 27 28 Fix excessive latency in x86 IPI delivery. [EN-16:07] 29 30 Fix memory leak in ZFS. [EN-16:08] 31 3220160429 p1 FreeBSD-SA-16:16.ntp 33 34 Fix multiple vulnerabilities of ntp. 35 3620160329: 37 10.3-RELEASE. 38 3920160124: 40 The NONE and HPN patches has been removed from OpenSSH. They are 41 still available in the security/openssh-portable port. 42 4320151214: 44 r292223 changed the internal interface between the nfsd.ko and 45 nfscommon.ko modules. As such, they must both be upgraded to-gether. 46 __FreeBSD_version has been bumped because of this. 47 4820151113: 49 Qlogic 24xx/25xx firmware images were updated from 5.5.0 to 7.3.0. 50 Kernel modules isp_2400_multi and isp_2500_multi were removed and 51 should be replaced with isp_2400 and isp_2500 modules respectively. 52 5320150806: 54 The menu.rc and loader.rc files will now be replaced during 55 upgrades. Please migrate local changes to menu.rc.local and 56 loader.rc.local instead. 57 5820151026: 59 NTP has been upgraded to 4.2.8p4. 60 6120151025: 62 ALLOW_DEPRECATED_ATF_TOOLS/ATFFILE support has been removed from 63 atf.test.mk (included from bsd.test.mk). Please upgrade devel/atf 64 and devel/kyua to version 0.20+ and adjust any calling code to work 65 with Kyuafile and kyua. 66 6720150823: 68 The polarity of Pulse Per Second (PPS) capture events with the 69 uart(4) driver has been corrected. Prior to this change the PPS 70 "assert" event corresponded to the trailing edge of a positive PPS 71 pulse and the "clear" event was the leading edge of the next pulse. 72 73 As the width of a PPS pulse in a typical GPS receiver is on the 74 order of 1 millisecond, most users will not notice any significant 75 difference with this change. 76 77 Anyone who has compensated for the historical polarity reversal by 78 configuring a negative offset equal to the pulse width will need to 79 remove that workaround. 80 8120150822: 82 From legacy ata(4) driver was removed support for SATA controllers 83 supported by more functional drivers ahci(4), siis(4) and mvs(4). 84 Kernel modules ataahci and ataadaptec were removed completely, 85 replaced by ahci and mvs modules respectively. 86 8720150813: 88 10.2-RELEASE. 89 9020150731: 91 As ZFS requires more kernel stack pages than is the default on some 92 architectures e.g. i386, it now warns if KSTACK_PAGES is less than 93 ZFS_MIN_KSTACK_PAGES (which is 4 at the time of writing). 94 95 Please consider using 'options KSTACK_PAGES=X' where X is greater 96 than or equal to ZFS_MIN_KSTACK_PAGES i.e. 4 in such configurations. 97 9820150703: 99 The default Unbound configuration now enables remote control 100 using a local socket. Users who have already enabled the 101 local_unbound service should regenerate their configuration 102 by running "service local_unbound setup" as root. 103 10420150624: 105 An additional fix for the issue described in the 20150614 sendmail 106 entry below has been been committed in revision 284786. 107 10820150615: 109 The fix for the issue described in the 20150614 sendmail entry 110 below has been been committed in revision 284485. The work 111 around described in that entry is no longer needed unless the 112 default setting is overridden by a confDH_PARAMETERS configuration 113 setting of '5' or pointing to a 512 bit DH parameter file. 114 11520150614: 116 The import of openssl to address the FreeBSD-SA-15:10.openssl 117 security advisory includes a change which rejects handshakes 118 with DH parameters below 768 bits. sendmail releases prior 119 to 8.15.2 (not yet released), defaulted to a 512 bit 120 DH parameter setting for client connections. To work around 121 this interoperability, sendmail can be configured to use a 122 2048 bit DH parameter by: 123 124 1. Edit /etc/mail/`hostname`.mc 125 2. If a setting for confDH_PARAMETERS does not exist or 126 exists and is set to a string beginning with '5', 127 replace it with '2'. 128 3. If a setting for confDH_PARAMETERS exists and is set to 129 a file path, create a new file with: 130 openssl dhparam -out /path/to/file 2048 131 4. Rebuild the .cf file: 132 cd /etc/mail/; make; make install 133 5. Restart sendmail: 134 cd /etc/mail/; make restart 135 136 A sendmail patch is coming, at which time this file will be 137 updated. 138 13920150601: 140 chmod, chflags, chown and chgrp now affect symlinks in -R mode as 141 defined in symlink(7); previously symlinks were silently ignored. 142 14320150430: 144 The const qualifier has been removed from iconv(3) to comply with 145 POSIX. The ports tree is aware of this from r384038 onwards. 146 14720141215: 148 At svn r275807, The default linux compat kernel ABI has been adjusted 149 to 2.6.18 in support of the linux-c6 compat ports infrastructure 150 update. If you wish to continue using the linux-f10 compat ports, 151 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are 152 encouraged to update their linux-compat packages to linux-c6 during 153 their next update cycle. 154 155 See ports/UPDATING 20141209 and 20141215 on migration to CentOS 6 ports. 156 15720141205: 158 pjdfstest has been integrated into kyua as an opt-in test suite. 159 Please see share/doc/pjdfstest/README for a more details on how to 160 execute it. 161 16220141118: 163 10.1-RELEASE. 164 16520140904: 166 The ofwfb driver, used to provide a graphics console on PowerPC when 167 using vt(4), no longer allows mmap() of all of physical memory. This 168 will prevent Xorg on PowerPC with some ATI graphics cards from 169 initializing properly unless x11-servers/xorg-server is updated to 170 1.12.4_8 or newer. 171 17220140831: 173 The libatf-c and libatf-c++ major versions were downgraded to 0 and 174 1 respectively to match the upstream numbers. They were out of 175 sync because, when they were originally added to FreeBSD, the 176 upstream versions were not respected. These libraries are private 177 and not yet built by default, so renumbering them should be a 178 non-issue. However, unclean source trees will yield broken test 179 programs once the operator executes "make delete-old-libs" after a 180 "make installworld". 181 182 Additionally, the atf-sh binary was made private by moving it into 183 /usr/libexec/. Already-built shell test programs will keep the 184 path to the old binary so they will break after "make delete-old" 185 is run. 186 187 If you are using WITH_TESTS=yes (not the default), wipe the object 188 tree and rebuild from scratch to prevent spurious test failures. 189 This is only needed once: the misnumbered libraries and misplaced 190 binaries have been added to OptionalObsoleteFiles.inc so they will 191 be removed during a clean upgrade. 192 19320140814: 194 The ixgbe tunables now match their sysctl counterparts, for example: 195 hw.ixgbe.enable_aim => hw.ix.enable_aim 196 Anyone using ixgbe tunables should ensure they update /boot/loader.conf. 197 19820140801: 199 The NFSv4.1 server committed by r269398 changes the internal 200 function call interfaces used between the NFS and krpc modules. 201 As such, __FreeBSD_version was bumped. 202 20320140729: 204 The default unbound configuration has been modified to address 205 issues with reverse lookups on networks that use private 206 address ranges. If you use the local_unbound service, run 207 "service local_unbound setup" as root to regenerate your 208 configuration, then "service local_unbound reload" to load the 209 new configuration. 210 21120140717: 212 It is no longer necessary to include the dwarf version in your DEBUG 213 options in your kernel config file. The bug that required it to be 214 placed in the config file has bene fixed. DEBUG should now just 215 contain -g. The build system will automatically update things 216 to do the right thing. 217 21820140715: 219 Several ABI breaking changes were merged to CTL and new iSCSI code. 220 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and 221 iscsictl need to be rebuilt to work with a new kernel. 222 22320140708: 224 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 225 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 226 which differs from the behaviour controlled by this knob.) 227 22820140608: 229 On i386 and amd64 systems, the onifconsole flag is now set by default 230 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 231 as a login TTY if it is set in the bootloader as an active kernel 232 console. No changes in behavior should result otherwise. To revert to 233 the previous behavior, set ttyu0 to "off" in /etc/ttys. 234 23520140512: 236 Clang and llvm have been upgraded to 3.4.1 release. 237 23820140321: 239 Clang and llvm have been upgraded to 3.4 release. 240 24120140306: 242 If a Makefile in a tests/ directory was auto-generating a Kyuafile 243 instead of providing an explicit one, this would prevent such 244 Makefile from providing its own Kyuafile in the future during 245 NO_CLEAN builds. This has been fixed in the Makefiles but manual 246 intervention is needed to clean an objdir if you use NO_CLEAN: 247 # find /usr/obj -name Kyuafile | xargs rm -f 248 24920140303: 250 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 251 capability mode support. Please note that enabling the feature in 252 kernel is still highly recommended. 253 25420140227: 255 OpenSSH is now built with sandbox support, and will use sandbox as 256 the default privilege separation method. This requires Capsicum 257 capability mode support in kernel. 258 25920140216: 260 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 261 been deprecated and will not be part of FreeBSD 11.0 and later 262 releases. If you use this driver, please consider switching to 263 the nfe(4) driver instead. 264 26520140120: 266 10.0-RELEASE. 267 26820131216: 269 The behavior of gss_pseudo_random() for the krb5 mechanism 270 has changed, for applications requesting a longer random string 271 than produced by the underlying enctype's pseudo-random() function. 272 In particular, the random string produced from a session key of 273 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 274 be different at the 17th octet and later, after this change. 275 The counter used in the PRF+ construction is now encoded as a 276 big-endian integer in accordance with RFC 4402. 277 __FreeBSD_version is bumped to 1000701. 278 27920131108: 280 The WITHOUT_ATF build knob has been removed and its functionality 281 has been subsumed into the more generic WITHOUT_TESTS. If you were 282 using the former to disable the build of the ATF libraries, you 283 should change your settings to use the latter. 284 28520131031: 286 The default version of mtree is nmtree which is obtained from 287 NetBSD. The output is generally the same, but may vary 288 slightly. If you found you need identical output adding 289 "-F freebsd9" to the command line should do the trick. For the 290 time being, the old mtree is available as fmtree. 291 29220131014: 293 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 294 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 295 1.1.4_8 and verify bsdyml not linked in, before running "make 296 delete-old-libs": 297 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 298 or 299 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 300 30120131010: 302 The rc.d/jail script has been updated to support jail(8) 303 configuration file. The "jail_<jname>_*" rc.conf(5) variables 304 for per-jail configuration are automatically converted to 305 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 306 This is transparently backward compatible. See below about some 307 incompatibilities and rc.conf(5) manual page for more details. 308 309 These variables are now deprecated in favor of jail(8) configuration 310 file. One can use "rc.d/jail config <jname>" command to generate 311 a jail(8) configuration file in /var/run/jail.<jname>.conf without 312 running the jail(8) utility. The default pathname of the 313 configuration file is /etc/jail.conf and can be specified by 314 using $jail_conf or $jail_<jname>_conf variables. 315 316 Please note that jail_devfs_ruleset accepts an integer at 317 this moment. Please consider to rewrite the ruleset name 318 with an integer. 319 32020130930: 321 BIND has been removed from the base system. If all you need 322 is a local resolver, simply enable and start the local_unbound 323 service instead. Otherwise, several versions of BIND are 324 available in the ports tree. The dns/bind99 port is one example. 325 326 With this change, nslookup(1) and dig(1) are no longer in the base 327 system. Users should instead use host(1) and drill(1) which are 328 in the base system. Alternatively, nslookup and dig can 329 be obtained by installing the dns/bind-tools port. 330 33120130916: 332 With the addition of unbound(8), a new unbound user is now 333 required during installworld. "mergemaster -p" can be used to 334 add the user prior to installworld, as documented in the handbook. 335 33620130911: 337 OpenSSH is now built with DNSSEC support, and will by default 338 silently trust signed SSHFP records. This can be controlled with 339 the VerifyHostKeyDNS client configuration setting. DNSSEC support 340 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 341 34220130906: 343 The GNU Compiler Collection and C++ standard library (libstdc++) 344 are no longer built by default on platforms where clang is the system 345 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 346 options in src.conf. 347 34820130905: 349 The PROCDESC kernel option is now part of the GENERIC kernel 350 configuration and is required for the rwhod(8) to work. 351 If you are using custom kernel configuration, you should include 352 'options PROCDESC'. 353 35420130905: 355 The API and ABI related to the Capsicum framework was modified 356 in backward incompatible way. The userland libraries and programs 357 have to be recompiled to work with the new kernel. This includes the 358 following libraries and programs, but the whole buildworld is 359 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 360 kdump, procstat, rwho, rwhod, uniq. 361 36220130903: 363 AES-NI intrinsic support has been added to gcc. The AES-NI module 364 has been updated to use this support. A new gcc is required to build 365 the aesni module on both i386 and amd64. 366 36720130821: 368 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 369 Thus "device padlock_rng" and "device rdrand_rng" should be 370 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 371 37220130813: 373 WITH_ICONV has been split into two feature sets. WITH_ICONV now 374 enables just the iconv* functionality and is now on by default. 375 WITH_LIBICONV_COMPAT enables the libiconv api and link time 376 compatability. Set WITHOUT_ICONV to build the old way. 377 If you have been using WITH_ICONV before, you will very likely 378 need to turn on WITH_LIBICONV_COMPAT. 379 38020130806: 381 INVARIANTS option now enables DEBUG for code with OpenSolaris and 382 Illumos origin, including ZFS. If you have INVARIANTS in your 383 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 384 explicitly. 385 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 386 locks if WITNESS option was set. Because that generated a lot of 387 witness(9) reports and all of them were believed to be false 388 positives, this is no longer done. New option OPENSOLARIS_WITNESS 389 can be used to achieve the previous behavior. 390 39120130806: 392 Timer values in IPv6 data structures now use time_uptime instead 393 of time_second. Although this is not a user-visible functional 394 change, userland utilities which directly use them---ndp(8), 395 rtadvd(8), and rtsold(8) in the base system---need to be updated 396 to r253970 or later. 397 39820130802: 399 find -delete can now delete the pathnames given as arguments, 400 instead of only files found below them or if the pathname did 401 not contain any slashes. Formerly, the following error message 402 would result: 403 404 find: -delete: <path>: relative path potentially not safe 405 406 Deleting the pathnames given as arguments can be prevented 407 without error messages using -mindepth 1 or by changing 408 directory and passing "." as argument to find. This works in the 409 old as well as the new version of find. 410 41120130726: 412 Behavior of devfs rules path matching has been changed. 413 Pattern is now always matched against fully qualified devfs 414 path and slash characters must be explicitly matched by 415 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 416 subdirectories must be reviewed. 417 41820130716: 419 The default ARM ABI has changed to the ARM EABI. The old ABI is 420 incompatible with the ARM EABI and all programs and modules will 421 need to be rebuilt to work with a new kernel. 422 423 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 424 425 NOTE: Support for the old ABI will be removed in the future and 426 users are advised to upgrade. 427 42820130709: 429 pkg_install has been disconnected from the build if you really need it 430 you should add WITH_PKGTOOLS in your src.conf(5). 431 43220130709: 433 Most of network statistics structures were changed to be able 434 keep 64-bits counters. Thus all tools, that work with networking 435 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 436 43720130618: 438 Fix a bug that allowed a tracing process (e.g. gdb) to write 439 to a memory-mapped file in the traced process's address space 440 even if neither the traced process nor the tracing process had 441 write access to that file. 442 44320130615: 444 CVS has been removed from the base system. An exact copy 445 of the code is available from the devel/cvs port. 446 44720130613: 448 Some people report the following error after the switch to bmake: 449 450 make: illegal option -- J 451 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 452 ... 453 *** [buildworld] Error code 2 454 455 this likely due to an old instance of make in 456 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 457 which src/Makefile will use that blindly, if it exists, so if 458 you see the above error: 459 460 rm -rf `make -V MAKEPATH` 461 462 should resolve it. 463 46420130516: 465 Use bmake by default. 466 Whereas before one could choose to build with bmake via 467 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 468 make. The goal is to remove these knobs for 10-RELEASE. 469 470 It is worth noting that bmake (like gmake) treats the command 471 line as the unit of failure, rather than statements within the 472 command line. Thus '(cd some/where && dosomething)' is safer 473 than 'cd some/where; dosomething'. The '()' allows consistent 474 behavior in parallel build. 475 47620130429: 477 Fix a bug that allows NFS clients to issue READDIR on files. 478 47920130426: 480 The WITHOUT_IDEA option has been removed because 481 the IDEA patent expired. 482 48320130426: 484 The sysctl which controls TRIM support under ZFS has been renamed 485 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 486 enabled by default. 487 48820130425: 489 The mergemaster command now uses the default MAKEOBJDIRPREFIX 490 rather than creating it's own in the temporary directory in 491 order allow access to bootstrapped versions of tools such as 492 install and mtree. When upgrading from version of FreeBSD where 493 the install command does not support -l, you will need to 494 install a new mergemaster command if mergemaster -p is required. 495 This can be accomplished with the command (cd src/usr.sbin/mergemaster 496 && make install). 497 49820130404: 499 Legacy ATA stack, disabled and replaced by new CAM-based one since 500 FreeBSD 9.0, completely removed from the sources. Kernel modules 501 atadisk and atapi*, user-level tools atacontrol and burncd are 502 removed. Kernel option `options ATA_CAM` is now permanently enabled 503 and removed. 504 50520130319: 506 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 507 and socketpair(2). Software, in particular Kerberos, may 508 automatically detect and use these during building. The resulting 509 binaries will not work on older kernels. 510 51120130308: 512 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 513 information, see the respective 20130304 entry). 514 51520130304: 516 Recent commits to callout(9) changed the size of struct callout, 517 so the KBI is probably heavily disturbed. Also, some functions 518 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 519 by macros. Every kernel module using it won't load, so rebuild 520 is requested. 521 522 The ctl device has been re-enabled in GENERIC for i386 and amd64, 523 but does not initialize by default (because of the new CTL_DISABLE 524 option) to save memory. To re-enable it, remove the CTL_DISABLE 525 option from the kernel config file or set kern.cam.ctl.disable=0 526 in /boot/loader.conf. 527 52820130301: 529 The ctl device has been disabled in GENERIC for i386 and amd64. 530 This was done due to the extra memory being allocated at system 531 initialisation time by the ctl driver which was only used if 532 a CAM target device was created. This makes a FreeBSD system 533 unusable on 128MB or less of RAM. 534 53520130208: 536 A new compression method (lz4) has been merged to -HEAD. Please 537 refer to zpool-features(7) for more information. 538 539 Please refer to the "ZFS notes" section of this file for information 540 on upgrading boot ZFS pools. 541 54220130129: 543 A BSD-licensed patch(1) variant has been added and is installed 544 as bsdpatch, being the GNU version the default patch. 545 To inverse the logic and use the BSD-licensed one as default, 546 while having the GNU version installed as gnupatch, rebuild 547 and install world with the WITH_BSD_PATCH knob set. 548 54920130121: 550 Due to the use of the new -l option to install(1) during build 551 and install, you must take care not to directly set the INSTALL 552 make variable in your /etc/make.conf, /etc/src.conf, or on the 553 command line. If you wish to use the -C flag for all installs 554 you may be able to add INSTALL+=-C to /etc/make.conf or 555 /etc/src.conf. 556 55720130118: 558 The install(1) option -M has changed meaning and now takes an 559 argument that is a file or path to append logs to. In the 560 unlikely event that -M was the last option on the command line 561 and the command line contained at least two files and a target 562 directory the first file will have logs appended to it. The -M 563 option served little practical purpose in the last decade so its 564 use is expected to be extremely rare. 565 56620121223: 567 After switching to Clang as the default compiler some users of ZFS 568 on i386 systems started to experience stack overflow kernel panics. 569 Please consider using 'options KSTACK_PAGES=4' in such configurations. 570 57120121222: 572 GEOM_LABEL now mangles label names read from file system metadata. 573 Mangling affect labels containing spaces, non-printable characters, 574 '%' or '"'. Device names in /etc/fstab and other places may need to 575 be updated. 576 57720121217: 578 By default, only the 10 most recent kernel dumps will be saved. To 579 restore the previous behaviour (no limit on the number of kernel dumps 580 stored in the dump directory) add the following line to /etc/rc.conf: 581 582 savecore_flags="" 583 58420121201: 585 With the addition of auditdistd(8), a new auditdistd user is now 586 required during installworld. "mergemaster -p" can be used to 587 add the user prior to installworld, as documented in the handbook. 588 58920121117: 590 The sin6_scope_id member variable in struct sockaddr_in6 is now 591 filled by the kernel before passing the structure to the userland via 592 sysctl or routing socket. This means the KAME-specific embedded scope 593 id in sin6_addr.s6_addr[2] is always cleared in userland application. 594 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 595 __FreeBSD_version is bumped to 1000025. 596 59720121105: 598 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 599 This means that the world and kernel will be compiled with clang 600 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 601 and /usr/bin/cpp. To disable this behavior and revert to building 602 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 603 of current may need to bootstrap WITHOUT_CLANG first if the clang 604 build fails (its compatibility window doesn't extend to the 9 stable 605 branch point). 606 60720121102: 608 The IPFIREWALL_FORWARD kernel option has been removed. Its 609 functionality now turned on by default. 610 61120121023: 612 The ZERO_COPY_SOCKET kernel option has been removed and 613 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 614 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 615 mechanism which is not safe and may result in kernel crashes. 616 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 617 driver supports disposeable external page sized mbuf storage. 618 Proper replacements for both zero-copy mechanisms are under 619 consideration and will eventually lead to complete removal 620 of the two kernel options. 621 62220121023: 623 The IPv4 network stack has been converted to network byte 624 order. The following modules need to be recompiled together 625 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 626 pf(4), ipfw(4), ng_ipfw(4), stf(4). 627 62820121022: 629 Support for non-MPSAFE filesystems was removed from VFS. The 630 VFS_VERSION was bumped, all filesystem modules shall be 631 recompiled. 632 63320121018: 634 All the non-MPSAFE filesystems have been disconnected from 635 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 636 portalfs, smbfs, xfs. 637 63820121016: 639 The interface cloning API and ABI has changed. The following 640 modules need to be recompiled together with kernel: 641 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 642 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 643 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 644 64520121015: 646 The sdhci driver was split in two parts: sdhci (generic SD Host 647 Controller logic) and sdhci_pci (actual hardware driver). 648 No kernel config modifications are required, but if you 649 load sdhc as a module you must switch to sdhci_pci instead. 650 65120121014: 652 Import the FUSE kernel and userland support into base system. 653 65420121013: 655 The GNU sort(1) program has been removed since the BSD-licensed 656 sort(1) has been the default for quite some time and no serious 657 problems have been reported. The corresponding WITH_GNU_SORT 658 knob has also gone. 659 66020121006: 661 The pfil(9) API/ABI for AF_INET family has been changed. Packet 662 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 663 with new kernel. 664 66520121001: 666 The net80211(4) ABI has been changed to allow for improved driver 667 PS-POLL and power-save support. All wireless drivers need to be 668 recompiled to work with the new kernel. 669 67020120913: 671 The random(4) support for the VIA hardware random number 672 generator (`PADLOCK') is no longer enabled unconditionally. 673 Add the padlock_rng device in the custom kernel config if 674 needed. The GENERIC kernels on i386 and amd64 do include the 675 device, so the change only affects the custom kernel 676 configurations. 677 67820120908: 679 The pf(4) packet filter ABI has been changed. pfctl(8) and 680 snmp_pf module need to be recompiled to work with new kernel. 681 68220120828: 683 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 684 to -HEAD. Pools that have empty_bpobj in active state can not be 685 imported read-write with ZFS implementations that do not support 686 this feature. For more information read the zpool-features(5) 687 manual page. 688 68920120727: 690 The sparc64 ZFS loader has been changed to no longer try to auto- 691 detect ZFS providers based on diskN aliases but now requires these 692 to be explicitly listed in the OFW boot-device environment variable. 693 69420120712: 695 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 696 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 697 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 698 69920120712: 700 The following sysctls and tunables have been renamed for consistency 701 with other variables: 702 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 703 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 704 70520120628: 706 The sort utility has been replaced with BSD sort. For now, GNU sort 707 is also available as "gnusort" or the default can be set back to 708 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 709 installed as "bsdsort". 710 71120120611: 712 A new version of ZFS (pool version 5000) has been merged to -HEAD. 713 Starting with this version the old system of ZFS pool versioning 714 is superseded by "feature flags". This concept enables forward 715 compatibility against certain future changes in functionality of ZFS 716 pools. The first read-only compatible "feature flag" for ZFS pools 717 is named "com.delphix:async_destroy". For more information 718 read the new zpool-features(5) manual page. 719 Please refer to the "ZFS notes" section of this file for information 720 on upgrading boot ZFS pools. 721 72220120417: 723 The malloc(3) implementation embedded in libc now uses sources imported 724 as contrib/jemalloc. The most disruptive API change is to 725 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 726 delete it prior to installworld, and optionally re-create it using the 727 new format after rebooting. See malloc.conf(5) for details 728 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 729 NAMESPACE section). 730 73120120328: 732 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 733 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 734 now spelled mips. This is to aid compatibility with third-party 735 software that expects this naming scheme in uname(3). Little-endian 736 settings are unchanged. If you are updating a big-endian mips64 machine 737 from before this change, you may need to set MACHINE_ARCH=mips64 in 738 your environment before the new build system will recognize your machine. 739 74020120306: 741 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 742 platforms. 743 74420120229: 745 Now unix domain sockets behave "as expected" on nullfs(5). Previously 746 nullfs(5) did not pass through all behaviours to the underlying layer, 747 as a result if we bound to a socket on the lower layer we could connect 748 only to the lower path; if we bound to the upper layer we could connect 749 only to the upper path. The new behavior is one can connect to both the 750 lower and the upper paths regardless what layer path one binds to. 751 75220120211: 753 The getifaddrs upgrade path broken with 20111215 has been restored. 754 If you have upgraded in between 20111215 and 20120209 you need to 755 recompile libc again with your kernel. You still need to recompile 756 world to be able to configure CARP but this restriction already 757 comes from 20111215. 758 75920120114: 760 The set_rcvar() function has been removed from /etc/rc.subr. All 761 base and ports rc.d scripts have been updated, so if you have a 762 port installed with a script in /usr/local/etc/rc.d you can either 763 hand-edit the rcvar= line, or reinstall the port. 764 765 An easy way to handle the mass-update of /etc/rc.d: 766 rm /etc/rc.d/* && mergemaster -i 767 76820120109: 769 panic(9) now stops other CPUs in the SMP systems, disables interrupts 770 on the current CPU and prevents other threads from running. 771 This behavior can be reverted using the kern.stop_scheduler_on_panic 772 tunable/sysctl. 773 The new behavior can be incompatible with kern.sync_on_panic. 774 77520111215: 776 The carp(4) facility has been changed significantly. Configuration 777 of the CARP protocol via ifconfig(8) has changed, as well as format 778 of CARP events submitted to devd(8) has changed. See manual pages 779 for more information. The arpbalance feature of carp(4) is currently 780 not supported anymore. 781 782 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 783 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 784 need to be recompiled. 785 78620111122: 787 The acpi_wmi(4) status device /dev/wmistat has been renamed to 788 /dev/wmistat0. 789 79020111108: 791 The option VFS_ALLOW_NONMPSAFE option has been added in order to 792 explicitely support non-MPSAFE filesystems. 793 It is on by default for all supported platform at this present 794 time. 795 79620111101: 797 The broken amd(4) driver has been replaced with esp(4) in the amd64, 798 i386 and pc98 GENERIC kernel configuration files. 799 80020110930: 801 sysinstall has been removed 802 80320110923: 804 The stable/9 branch created in subversion. This corresponds to the 805 RELENG_9 branch in CVS. 806 80720110913: 808 This commit modifies vfs_register() so that it uses a hash 809 calculation to set vfc_typenum, which is enabled by default. 810 The first time a system is booted after this change, the 811 vfc_typenum values will change for all file systems. The 812 main effect of this is a change to the NFS server file handles 813 for file systems that use vfc_typenum in their fsid, such as ZFS. 814 It will, however, prevent vfc_typenum from changing when file 815 systems are loaded in a different order for subsequent reboots. 816 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 817 until you are ready to remount all NFS clients after a reboot. 818 81920110828: 820 Bump the shared library version numbers for libraries that 821 do not use symbol versioning, have changed the ABI compared 822 to stable/8 and which shared library version was not bumped. 823 Done as part of 9.0-RELEASE cycle. 824 82520110815: 826 During the merge of Capsicum features, the fget(9) KPI was modified. 827 This may require the rebuilding of out-of-tree device drivers -- 828 issues have been reported specifically with the nVidia device driver. 829 __FreeBSD_version is bumped to 900041. 830 831 Also, there is a period between 20110811 and 20110814 where the 832 special devices /dev/{stdin,stdout,stderr} did not work correctly. 833 Building world from a kernel during that window may not work. 834 83520110628: 836 The packet filter (pf) code has been updated to OpenBSD 4.5. 837 You need to update userland tools to be in sync with kernel. 838 This update breaks backward compatibility with earlier pfsync(4) 839 versions. Care must be taken when updating redundant firewall setups. 840 84120110608: 842 The following sysctls and tunables are retired on x86 platforms: 843 machdep.hlt_cpus 844 machdep.hlt_logical_cpus 845 The following sysctl is retired: 846 machdep.hyperthreading_allowed 847 The sysctls were supposed to provide a way to dynamically offline and 848 online selected CPUs on x86 platforms, but the implementation has not 849 been reliable especially with SCHED_ULE scheduler. 850 machdep.hyperthreading_allowed tunable is still available to ignore 851 hyperthreading CPUs at OS level. 852 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 853 where X is an APIC ID of a CPU. Be advised, though, that disabling 854 CPUs in non-uniform fashion will result in non-uniform topology and 855 may lead to sub-optimal system performance with SCHED_ULE, which is 856 a default scheduler. 857 85820110607: 859 cpumask_t type is retired and cpuset_t is used in order to describe 860 a mask of CPUs. 861 86220110531: 863 Changes to ifconfig(8) for dynamic address family detection mandate 864 that you are running a kernel of 20110525 or later. Make sure to 865 follow the update procedure to boot a new kernel before installing 866 world. 867 86820110513: 869 Support for sun4v architecture is officially dropped 870 87120110503: 872 Several KPI breaking changes have been committed to the mii(4) layer, 873 the PHY drivers and consequently some Ethernet drivers using mii(4). 874 This means that miibus.ko and the modules of the affected Ethernet 875 drivers need to be recompiled. 876 877 Note to kernel developers: Given that the OUI bit reversion problem 878 was fixed as part of these changes all mii(4) commits related to OUIs, 879 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 880 handling, no longer can be merged verbatim to stable/8 and previous 881 branches. 882 88320110430: 884 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 885 into their kernel configurations along with 'device pci'. 886 88720110427: 888 The default NFS client is now the new NFS client, so fstype "newnfs" 889 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 890 Although mounts via fstype "nfs" will usually work without userland 891 changes, it is recommended that the mount(8) and mount_nfs(8) 892 commands be rebuilt from sources and that a link to mount_nfs called 893 mount_oldnfs be created. The new client is compiled into the 894 kernel with "options NFSCL" and this is needed for diskless root 895 file systems. The GENERIC kernel configs have been changed to use 896 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 897 To use the regular/old client, you can "mount -t oldnfs ...". For 898 a diskless root file system, you must also include a line like: 899 900 vfs.root.mountfrom="oldnfs:" 901 902 in the boot/loader.conf on the root fs on the NFS server to make 903 a diskless root fs use the old client. 904 90520110424: 906 The GENERIC kernels for all architectures now default to the new 907 CAM-based ATA stack. It means that all legacy ATA drivers were 908 removed and replaced by respective CAM drivers. If you are using 909 ATA device names in /etc/fstab or other places, make sure to update 910 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 911 where 'Y's are the sequential numbers starting from zero for each type 912 in order of detection, unless configured otherwise with tunables, 913 see cam(4)). There will be symbolic links created in /dev/ to map 914 old adX devices to the respective adaY. They should provide basic 915 compatibility for file systems mounting in most cases, but they do 916 not support old user-level APIs and do not have respective providers 917 in GEOM. Consider using updated management tools with new device names. 918 919 It is possible to load devices ahci, ata, siis and mvs as modules, 920 but option ATA_CAM should remain in kernel configuration to make ata 921 module work as CAM driver supporting legacy ATA controllers. Device ata 922 still can be used in modular fashion (atacore + ...). Modules atadisk 923 and atapi* are not used and won't affect operation in ATA_CAM mode. 924 Note that to use CAM-based ATA kernel should include CAM devices 925 scbus, pass, da (or explicitly ada), cd and optionally others. All of 926 them are parts of the cam module. 927 928 ataraid(4) functionality is now supported by the RAID GEOM class. 929 To use it you can load geom_raid kernel module and use graid(8) tool 930 for management. Instead of /dev/arX device names, use /dev/raid/rX. 931 932 No kernel config options or code have been removed, so if a problem 933 arises, please report it and optionally revert to the old ATA stack. 934 In order to do it you can remove from the kernel config: 935 options ATA_CAM 936 device ahci 937 device mvs 938 device siis 939 , and instead add back: 940 device atadisk # ATA disk drives 941 device ataraid # ATA RAID drives 942 device atapicd # ATAPI CDROM drives 943 device atapifd # ATAPI floppy drives 944 device atapist # ATAPI tape drives 945 94620110423: 947 The default NFS server has been changed to the new server, which 948 was referred to as the experimental server. If you need to switch 949 back to the old NFS server, you must now put the "-o" option on 950 both the mountd and nfsd commands. This can be done using the 951 mountd_flags and nfs_server_flags rc.conf variables until an 952 update to the rc scripts is committed, which is coming soon. 953 95420110418: 955 The GNU Objective-C runtime library (libobjc), and other Objective-C 956 related components have been removed from the base system. If you 957 require an Objective-C library, please use one of the available ports. 958 95920110331: 960 ath(4) has been split into bus- and device- modules. if_ath contains 961 the HAL, the TX rate control and the network device code. if_ath_pci 962 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 963 contains the AHB glue. Users need to load both if_ath_pci and if_ath 964 in order to use ath on everything else. 965 966 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 967 need to load if_ath and if_ath_pci for ath(4) operation. 968 96920110314: 970 As part of the replacement of sysinstall, the process of building 971 release media has changed significantly. For details, please re-read 972 release(7), which has been updated to reflect the new build process. 973 97420110218: 975 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 976 is the last available version under GPLv2. It brings a number of new 977 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 978 4.1 and SSE 4.2), better support for powerpc64, a number of new 979 directives, and lots of other small improvements. See the ChangeLog 980 file in contrib/binutils for the full details. 981 98220110218: 983 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 984 compliant, and will now use half of hash for authentication. 985 This will break interoperability with all stacks (including all 986 actual FreeBSD versions) who implement 987 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 988 authentication). 989 The only workaround with such peers is to use another HMAC 990 algorithm for IPsec ("phase 2") authentication. 991 99220110207: 993 Remove the uio_yield prototype and symbol. This function has 994 been misnamed since it was introduced and should not be 995 globally exposed with this name. The equivalent functionality 996 is now available using kern_yield(curthread->td_user_pri). 997 The function remains undocumented. 998 99920110112: 1000 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 1001 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 1002 for scalar sysctls is defined but disabled. Code that needs 1003 UQUAD to pass the type checking that must compile on older 1004 systems where the define is not present can check against 1005 __FreeBSD_version >= 900030. 1006 1007 The system dialog(1) has been replaced with a new version previously 1008 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 1009 with the previous version, but the libdialog associated with it has 1010 a largely incompatible API. As such, the original version of libdialog 1011 will be kept temporarily as libodialog, until its base system consumers 1012 are replaced or updated. Bump __FreeBSD_version to 900030. 1013 101420110103: 1015 If you are trying to run make universe on a -stable system, and you get 1016 the following warning: 1017 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 1018 unknown. config(8) likely too old." 1019 or something similar to it, then you must upgrade your -stable system 1020 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 1021 stable/8) or build the config from the latest stable/8 branch and 1022 install it on your system. 1023 1024 Prior to this date, building a current universe on 8-stable system from 1025 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 1026 error in the first kernel build phase. A new config on those old 1027 systems will fix that problem for older versions of -current. 1028 102920101228: 1030 The TCP stack has been modified to allow Khelp modules to interact with 1031 it via helper hook points and store per-connection data in the TCP 1032 control block. Bump __FreeBSD_version to 900029. User space tools that 1033 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 1034 be recompiled. 1035 103620101114: 1037 Generic IEEE 802.3 annex 31B full duplex flow control support has been 1038 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 1039 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 1040 to take advantage of it instead of using custom implementations. This 1041 means that these drivers now no longer unconditionally advertise 1042 support for flow control but only do so if flow control is a selected 1043 media option. This was implemented in the generic support that way in 1044 order to allow flow control to be switched on and off via ifconfig(8) 1045 with the PHY specific default to typically off in order to protect 1046 from unwanted effects. Consequently, if you used flow control with 1047 one of the above mentioned drivers you now need to explicitly enable 1048 it, for example via: 1049 ifconfig bge0 media auto mediaopt flowcontrol 1050 1051 Along with the above mentioned changes generic support for setting 1052 1000baseT master mode also has been added and brgphy(4), ciphy(4), 1053 e1000phy(4) as well as ip1000phy(4) have been converted to take 1054 advantage of it. This means that these drivers now no longer take the 1055 link0 parameter for selecting master mode but the master media option 1056 has to be used instead, for example like in the following: 1057 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 1058 1059 Selection of master mode now is also available with all other PHY 1060 drivers supporting 1000baseT. 1061 106220101111: 1063 The TCP stack has received a significant update to add support for 1064 modularised congestion control and generally improve the clarity of 1065 congestion control decisions. Bump __FreeBSD_version to 900025. User 1066 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 1067 sockstat) need to be recompiled. 1068 106920101002: 1070 The man(1) utility has been replaced by a new version that no longer 1071 uses /etc/manpath.config. Please consult man.conf(5) for how to 1072 migrate local entries to the new format. 1073 107420100928: 1075 The copyright strings printed by login(1) and sshd(8) at the time of a 1076 new connection have been removed to follow other operating systems and 1077 upstream sshd. 1078 107920100915: 1080 A workaround for a fixed ld bug has been removed in kernel code, 1081 so make sure that your system ld is built from sources after 1082 revision 210245 from 2010-07-19 (r211583 if building head kernel 1083 on stable/8, r211584 for stable/7; both from 2010-08-21). 1084 A symptom of incorrect ld version is different addresses for 1085 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 1086 108720100913: 1088 The $ipv6_prefer variable in rc.conf(5) has been split into 1089 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 1090 1091 The $ip6addrctl_policy is a variable to choose a pre-defined 1092 address selection policy set by ip6addrctl(8). A value 1093 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 1094 default is "AUTO". 1095 1096 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 1097 flag (see an entry of 20090926) is set on an interface with no 1098 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 1099 security reason. If you want IPv6 link-local address on all 1100 interfaces by default, set this to "YES". 1101 1102 The old ipv6_prefer="YES" is equivalent to 1103 ipv6_activate_all_interfaces="YES" and 1104 ip6addrctl_policy="ipv6_prefer". 1105 110620100913: 1107 DTrace has grown support for userland tracing. Due to this, DTrace is 1108 now i386 and amd64 only. 1109 dtruss(1) is now installed by default on those systems and a new 1110 kernel module is needed for userland tracing: fasttrap. 1111 No changes to your kernel config file are necessary to enable 1112 userland tracing, but you might consider adding 'STRIP=' and 1113 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 1114 to have informative userland stack traces in DTrace (ustack). 1115 111620100725: 1117 The acpi_aiboost(4) driver has been removed in favor of the new 1118 aibs(4) driver. You should update your kernel configuration file. 1119 112020100722: 1121 BSD grep has been imported to the base system and it is built by 1122 default. It is completely BSD licensed, highly GNU-compatible, uses 1123 less memory than its GNU counterpart and has a small codebase. 1124 However, it is slower than its GNU counterpart, which is mostly 1125 noticeable for larger searches, for smaller ones it is measurable 1126 but not significant. The reason is complex, the most important factor 1127 is that we lack a modern and efficient regex library and GNU 1128 overcomes this by optimizing the searches internally. Future work 1129 on improving the regex performance is planned, for the meantime, 1130 users that need better performance, can build GNU grep instead by 1131 setting the WITH_GNU_GREP knob. 1132 113320100713: 1134 Due to the import of powerpc64 support, all existing powerpc kernel 1135 configuration files must be updated with a machine directive like this: 1136 machine powerpc powerpc 1137 1138 In addition, an updated config(8) is required to build powerpc kernels 1139 after this change. 1140 114120100713: 1142 A new version of ZFS (version 15) has been merged to -HEAD. 1143 This version uses a python library for the following subcommands: 1144 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 1145 For full functionality of these commands the following port must 1146 be installed: sysutils/py-zfs 1147 114820100429: 1149 'vm_page's are now hashed by physical address to an array of mutexes. 1150 Currently this is only used to serialize access to hold_count. Over 1151 time the page queue mutex will be peeled away. This changes the size 1152 of pmap on every architecture. And requires all callers of vm_page_hold 1153 and vm_page_unhold to be updated. 1154 115520100402: 1156 WITH_CTF can now be specified in src.conf (not recommended, there 1157 are some problems with static executables), make.conf (would also 1158 affect ports which do not use GNU make and do not override the 1159 compile targets) or in the kernel config (via "makeoptions 1160 WITH_CTF=yes"). 1161 When WITH_CTF was specified there before this was silently ignored, 1162 so make sure that WITH_CTF is not used in places which could lead 1163 to unwanted behavior. 1164 116520100311: 1166 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1167 to allow 32-bit compatibility on non-x86 platforms. All kernel 1168 configurations on amd64 and ia64 platforms using these options must 1169 be modified accordingly. 1170 117120100113: 1172 The utmp user accounting database has been replaced with utmpx, 1173 the user accounting interface standardized by POSIX. 1174 Unfortunately the semantics of utmp and utmpx don't match, 1175 making it practically impossible to support both interfaces. 1176 The user accounting database is used by tools like finger(1), 1177 last(1), talk(1), w(1) and ac(8). 1178 1179 All applications in the base system use utmpx. This means only 1180 local binaries (e.g. from the ports tree) may still use these 1181 utmp database files. These applications must be rebuilt to make 1182 use of utmpx. 1183 1184 After the system has been upgraded, it is safe to remove the old 1185 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1186 assuming their contents is of no importance anymore. Old wtmp 1187 databases can only be used by last(1) and ac(8) after they have 1188 been converted to the new format using wtmpcvt(1). 1189 119020100108: 1191 Introduce the kernel thread "deadlock resolver" (which can be enabled 1192 via the DEADLKRES option, see NOTES for more details) and the 1193 sleepq_type() function for sleepqueues. 1194 119520091202: 1196 The rc.firewall and rc.firewall6 were unified, and 1197 rc.firewall6 and rc.d/ip6fw were removed. 1198 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1199 variables are obsoleted. Instead, the following new rc 1200 variables are added to rc.d/ipfw: 1201 1202 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1203 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1204 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1205 1206 The meanings correspond to the relevant IPv4 variables. 1207 120820091125: 1209 8.0-RELEASE. 1210 121120091113: 1212 The default terminal emulation for syscons(4) has been changed 1213 from cons25 to xterm on all platforms except pc98. This means 1214 that the /etc/ttys file needs to be updated to ensure correct 1215 operation of applications on the console. 1216 1217 The terminal emulation style can be toggled per window by using 1218 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1219 options can be used to change the compile-time default back to 1220 cons25. 1221 1222 To prevent graphical artifacts, make sure the TERM environment 1223 variable is set to match the terminal emulation that is being 1224 performed by syscons(4). 1225 122620091109: 1227 The layout of the structure ieee80211req_scan_result has changed. 1228 Applications that require wireless scan results (e.g. ifconfig(8)) 1229 from net80211 need to be recompiled. 1230 1231 Applications such as wpa_supplicant(8) may require a full world 1232 build without using NO_CLEAN in order to get synchronized with the 1233 new structure. 1234 123520091025: 1236 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1237 There's one kernel module for each firmware. Adding "device iwnfw" 1238 to the kernel configuration file means including all three firmware 1239 images inside the kernel. If you want to include just the one for 1240 your wireless card, use the devices iwn4965fw, iwn5000fw or 1241 iwn5150fw. 1242 124320090926: 1244 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1245 into rc.d/netif. The changes are the following: 1246 1247 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1248 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1249 Note that both variables need the "inet6" keyword at the head. 1250 1251 Do not set $ipv6_network_interfaces manually if you do not 1252 understand what you are doing. It is not needed in most cases. 1253 1254 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1255 they are obsolete. 1256 1257 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1258 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1259 1260 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1261 all configured interfaces have "inet6 accept_rtadv" in the 1262 $ifconfig_IF_ipv6. These are for backward compatibility. 1263 1264 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1265 functionality of interfaces with no corresponding 1266 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1267 and the default address selection policy of ip6addrctl(8) 1268 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1269 Note that if you want to configure IPv6 functionality on the 1270 disabled interfaces after boot, first you need to clear the flag by 1271 using ifconfig(8) like: 1272 1273 ifconfig em0 inet6 -ifdisabled 1274 1275 If YES, the default address selection policy is set as 1276 IPv6-preferred. 1277 1278 The default value of $ipv6_prefer is NO. 1279 1280 4. If your system need to receive Router Advertisement messages, 1281 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1282 scripts automatically invoke rtsol(8) when the interface becomes 1283 UP. The Router Advertisement messages are used for SLAAC 1284 (State-Less Address AutoConfiguration). 1285 128620090922: 1287 802.11s D3.03 support was committed. This is incompatible with the 1288 previous code, which was based on D3.0. 1289 129020090912: 1291 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1292 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1293 control whether accepting Router Advertisement messages or not. 1294 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1295 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1296 The ifconfig(8) utility now supports these flags. 1297 129820090910: 1299 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1300 mount(8) and -a option for df(1) to see them. 1301 130220090825: 1303 The old tunable hw.bus.devctl_disable has been superseded by 1304 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1305 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1306 is 1000. 1307 130820090813: 1309 Remove the option STOP_NMI. The default action is now to use NMI only 1310 for KDB via the newly introduced function stop_cpus_hard() and 1311 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1312 131320090803: 1314 The stable/8 branch created in subversion. This corresponds to the 1315 RELENG_8 branch in CVS. 1316 131720090719: 1318 Bump the shared library version numbers for all libraries that do not 1319 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1320 __FreeBSD_version to 800105. 1321 132220090714: 1323 Due to changes in the implementation of virtual network stack support, 1324 all network-related kernel modules must be recompiled. As this change 1325 breaks the ABI, bump __FreeBSD_version to 800104. 1326 132720090713: 1328 The TOE interface to the TCP syncache has been modified to remove 1329 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1330 The cxgb driver is the only TOE consumer affected by this change, and 1331 needs to be recompiled along with the kernel. As this change breaks 1332 the ABI, bump __FreeBSD_version to 800103. 1333 133420090712: 1335 Padding has been added to struct tcpcb, sackhint and tcpstat in 1336 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1337 maintaining the ABI. However, this change breaks the ABI, so bump 1338 __FreeBSD_version to 800102. User space tools that rely on the size of 1339 any of these structs (e.g. sockstat) need to be recompiled. 1340 134120090630: 1342 The NFS_LEGACYRPC option has been removed along with the old kernel 1343 RPC implementation that this option selected. Kernel configurations 1344 may need to be adjusted. 1345 134620090629: 1347 The network interface device nodes at /dev/net/<interface> have been 1348 removed. All ioctl operations can be performed the normal way using 1349 routing sockets. The kqueue functionality can generally be replaced 1350 with routing sockets. 1351 135220090628: 1353 The documentation from the FreeBSD Documentation Project (Handbook, 1354 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1355 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1356 135720090624: 1358 The ABI of various structures related to the SYSV IPC API have been 1359 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1360 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1361 800100. 1362 136320090622: 1364 Layout of struct vnet has changed as routing related variables were 1365 moved to their own Vimage module. Modules need to be recompiled. Bump 1366 __FreeBSD_version to 800099. 1367 136820090619: 1369 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1370 respectively. As long as no more than 16 groups per process are used, 1371 no changes should be visible. When more than 16 groups are used, old 1372 binaries may fail if they call getgroups() or getgrouplist() with 1373 statically sized storage. Recompiling will work around this, but 1374 applications should be modified to use dynamically allocated storage 1375 for group arrays as POSIX.1-2008 does not cap an implementation's 1376 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1377 1378 NFS and portalfs mounts may also be affected as the list of groups is 1379 truncated to 16. Users of NFS who use more than 16 groups, should 1380 take care that negative group permissions are not used on the exported 1381 file systems as they will not be reliable unless a GSSAPI based 1382 authentication method is used. 1383 138420090616: 1385 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1386 option compiles in the support for adaptive spinning for lockmgrs 1387 which want to enable it. The lockinit() function now accepts the flag 1388 LK_ADAPTIVE in order to make the lock object subject to adaptive 1389 spinning when both held in write and read mode. 1390 139120090613: 1392 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1393 changed. User applications that use this ioctl need to be rebuilt. 1394 139520090611: 1396 The layout of struct thread has changed. Kernel and modules need to 1397 be rebuilt. 1398 139920090608: 1400 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1401 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1402 140320090602: 1404 window(1) has been removed from the base system. It can now be 1405 installed from ports. The port is called misc/window. 1406 140720090601: 1408 The way we are storing and accessing `routing table' entries has 1409 changed. Programs reading the FIB, like netstat, need to be 1410 re-compiled. 1411 141220090601: 1413 A new netisr implementation has been added for FreeBSD 8. Network 1414 file system modules, such as igmp, ipdivert, and others, should be 1415 rebuilt. 1416 Bump __FreeBSD_version to 800096. 1417 141820090530: 1419 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1420 more valid. 1421 142220090530: 1423 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1424 Bump __FreeBSD_version to 800094. 1425 142620090529: 1427 Add mnt_xflag field to 'struct mount'. File system modules need to be 1428 rebuilt. 1429 Bump __FreeBSD_version to 800093. 1430 143120090528: 1432 The compiling option ADAPTIVE_SX has been retired while it has been 1433 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1434 The KPI for sx_init_flags() changes as accepting flags: 1435 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1436 been introduced in order to handle the reversed logic. 1437 Bump __FreeBSD_version to 800092. 1438 143920090527: 1440 Add support for hierarchical jails. Remove global securelevel. 1441 Bump __FreeBSD_version to 800091. 1442 144320090523: 1444 The layout of struct vnet_net has changed, therefore modules 1445 need to be rebuilt. 1446 Bump __FreeBSD_version to 800090. 1447 144820090523: 1449 The newly imported zic(8) produces a new format in the output. Please 1450 run tzsetup(8) to install the newly created data to /etc/localtime. 1451 145220090520: 1453 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1454 hw.usb.* and is now consistent again with previous releases. 1455 145620090520: 1457 802.11 monitor mode support was revised and driver api's were changed. 1458 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1459 of DLT_IEEE802_11. No user-visible data structures were changed but 1460 applications that use DLT_IEEE802_11 may require changes. 1461 Bump __FreeBSD_version to 800088. 1462 146320090430: 1464 The layout of the following structs has changed: sysctl_oid, 1465 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1466 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1467 panics may be experienced. World rebuild is required for 1468 correctly checking networking state from userland. 1469 Bump __FreeBSD_version to 800085. 1470 147120090429: 1472 MLDv2 and Source-Specific Multicast (SSM) have been merged 1473 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1474 The implementation of SSM within FreeBSD's IPv6 stack closely 1475 follows the IPv4 implementation. 1476 1477 For kernel developers: 1478 1479 * The most important changes are that the ip6_output() and 1480 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1481 and this lock has been downgraded to a non-recursive mutex. 1482 1483 * As with the changes to the IPv4 stack to support SSM, filtering 1484 of inbound multicast traffic must now be performed by transport 1485 protocols within the IPv6 stack. This does not apply to TCP and 1486 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1487 1488 * The KPIs used by IPv6 multicast are similar to those used by 1489 the IPv4 stack, with the following differences: 1490 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1491 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1492 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1493 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1494 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1495 for MLDv1 have an additional 'timer' argument which is used to 1496 jitter the initial membership report for the solicited-node 1497 multicast membership on-link. 1498 * This is not strictly needed for MLDv2, which already jitters 1499 its report transmissions. However, the 'timer' argument is 1500 preserved in case MLDv1 is active on the interface. 1501 1502 * The KAME linked-list based IPv6 membership implementation has 1503 been refactored to use a vector similar to that used by the IPv4 1504 stack. 1505 Code which maintains a list of its own multicast memberships 1506 internally, e.g. carp, has been updated to reflect the new 1507 semantics. 1508 1509 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1510 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1511 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1512 implementation constraint which needs to be addressed in HEAD. 1513 1514 For application developers: 1515 1516 * The changes are broadly similar to those made for the IPv4 1517 stack. 1518 1519 * The use of IPv4 and IPv6 multicast socket options on the same 1520 socket, using mapped addresses, HAS NOT been tested or supported. 1521 1522 * There are a number of issues with the implementation of various 1523 IPv6 multicast APIs which need to be resolved in the API surface 1524 before the implementation is fully compatible with KAME userland 1525 use, and these are mostly to do with interface index treatment. 1526 1527 * The literature available discusses the use of either the delta / ASM 1528 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1529 using setsourcefilter(3)/getsourcefilter(3). For more information 1530 please refer to RFC 3768, 'Socket Interface Extensions for 1531 Multicast Source Filters'. 1532 1533 * Applications which use the published RFC 3678 APIs should be fine. 1534 1535 For systems administrators: 1536 1537 * The mtest(8) utility has been refactored to support IPv6, in 1538 addition to IPv4. Interface addresses are no longer accepted 1539 as arguments, their names must be used instead. The utility 1540 will map the interface name to its first IPv4 address as 1541 returned by getifaddrs(3). 1542 1543 * The ifmcstat(8) utility has also been updated to print the MLDv2 1544 endpoint state and source filter lists via sysctl(3). 1545 1546 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1547 loopback of IPv6 multicast datagrams by default; it defaults to 1 1548 to preserve the existing behaviour. Disabling multicast loopback is 1549 recommended for optimal system performance. 1550 1551 * The IPv6 MROUTING code has been changed to examine this sysctl 1552 instead of attempting to perform a group lookup before looping 1553 back forwarded datagrams. 1554 1555 Bump __FreeBSD_version to 800084. 1556 155720090422: 1558 Implement low-level Bluetooth HCI API. 1559 Bump __FreeBSD_version to 800083. 1560 156120090419: 1562 The layout of struct malloc_type, used by modules to register new 1563 memory allocation types, has changed. Most modules will need to 1564 be rebuilt or panics may be experienced. 1565 Bump __FreeBSD_version to 800081. 1566 156720090415: 1568 Anticipate overflowing inp_flags - add inp_flags2. 1569 This changes most offsets in inpcb, so checking v4 connection 1570 state will require a world rebuild. 1571 Bump __FreeBSD_version to 800080. 1572 157320090415: 1574 Add an llentry to struct route and struct route_in6. Modules 1575 embedding a struct route will need to be recompiled. 1576 Bump __FreeBSD_version to 800079. 1577 157820090414: 1579 The size of rt_metrics_lite and by extension rtentry has changed. 1580 Networking administration apps will need to be recompiled. 1581 The route command now supports show as an alias for get, weighting 1582 of routes, sticky and nostick flags to alter the behavior of stateful 1583 load balancing. 1584 Bump __FreeBSD_version to 800078. 1585 158620090408: 1587 Do not use Giant for kbdmux(4) locking. This is wrong and 1588 apparently causing more problems than it solves. This will 1589 re-open the issue where interrupt handlers may race with 1590 kbdmux(4) in polling mode. Typical symptoms include (but 1591 not limited to) duplicated and/or missing characters when 1592 low level console functions (such as gets) are used while 1593 interrupts are enabled (for example geli password prompt, 1594 mountroot prompt etc.). Disabling kbdmux(4) may help. 1595 159620090407: 1597 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1598 kernel modules referencing any of the above need to be recompiled. 1599 Bump __FreeBSD_version to 800075. 1600 160120090320: 1602 GEOM_PART has become the default partition slicer for storage devices, 1603 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1604 introduces some changes: 1605 1606 MSDOS/EBR: the devices created from MSDOS extended partition entries 1607 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1608 to devices with offset-based names. fstabs may need to be modified. 1609 1610 BSD: the "geometry does not match label" warning is harmless in most 1611 cases but it points to problems in file system misalignment with 1612 disk geometry. The "c" partition is now implicit, covers the whole 1613 top-level drive and cannot be (mis)used by users. 1614 1615 General: Kernel dumps are now not allowed to be written to devices 1616 whose partition types indicate they are meant to be used for file 1617 systems (or, in case of MSDOS partitions, as something else than 1618 the "386BSD" type). 1619 1620 Most of these changes date approximately from 200812. 1621 162220090319: 1623 The uscanner(4) driver has been removed from the kernel. This follows 1624 Linux removing theirs in 2.6 and making libusb the default interface 1625 (supported by sane). 1626 162720090319: 1628 The multicast forwarding code has been cleaned up. netstat(1) 1629 only relies on KVM now for printing bandwidth upcall meters. 1630 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1631 ip6_mroute_mod respectively. The config(5) options for statically 1632 compiling this code remain the same, i.e. 'options MROUTING'. 1633 163420090315: 1635 Support for the IFF_NEEDSGIANT network interface flag has been 1636 removed, which means that non-MPSAFE network device drivers are no 1637 longer supported. In particular, if_ar, if_sr, and network device 1638 drivers from the old (legacy) USB stack can no longer be built or 1639 used. 1640 164120090313: 1642 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1643 a bunch of new language catalog files have also been added. 1644 This means that some common libc messages are now localized and 1645 they depend on the LC_MESSAGES environmental variable. 1646 164720090313: 1648 The k8temp(4) driver has been renamed to amdtemp(4) since 1649 support for Family 10 and Family 11 CPU families was added. 1650 165120090309: 1652 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1653 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1654 1655 For kernel developers, the most important changes are that the 1656 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1657 and this lock has been downgraded to a non-recursive mutex. 1658 1659 Transport protocols (UDP, Raw IP) are now responsible for filtering 1660 inbound multicast traffic according to group membership and source 1661 filters. The imo_multicast_filter() KPI exists for this purpose. 1662 Transports which do not use multicast (SCTP, TCP) already reject 1663 multicast by default. Forwarding and receive performance may improve 1664 as a mutex acquisition is no longer needed in the ip_input() 1665 low-level input path. in_addmulti() and in_delmulti() are shimmed 1666 to new KPIs which exist to support SSM in-kernel. 1667 1668 For application developers, it is recommended that loopback of 1669 multicast datagrams be disabled for best performance, as this 1670 will still cause the lock to be taken for each looped-back 1671 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1672 be tuned to 0 to disable loopback by default; it defaults to 1 1673 to preserve the existing behaviour. 1674 1675 For systems administrators, to obtain best performance with 1676 multicast reception and multiple groups, it is always recommended 1677 that a card with a suitably precise hash filter is used. Hash 1678 collisions will still result in the lock being taken within the 1679 transport protocol input path to check group membership. 1680 1681 If deploying FreeBSD in an environment with IGMP snooping switches, 1682 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1683 enabled; this forces 224.0.0.0/24 group membership to be announced 1684 via IGMP. 1685 1686 The size of 'struct igmpstat' has changed; netstat needs to be 1687 recompiled to reflect this. 1688 Bump __FreeBSD_version to 800070. 1689 169020090309: 1691 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1692 updated to use it. This requires a buildworld/installworld in order to 1693 update the library and dependencies (usbconfig, etc). Its advisable to 1694 rebuild all ports which uses libusb. More specific directions are given 1695 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1696 libusb are no longer required and can be removed. 1697 169820090302: 1699 A workaround is committed to allow the creation of System V shared 1700 memory segment of size > 2 GB on the 64-bit architectures. 1701 Due to a limitation of the existing ABI, the shm_segsz member 1702 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1703 wrong for large segments. Note that limits must be explicitly 1704 raised to allow such segments to be created. 1705 170620090301: 1707 The layout of struct ifnet has changed, requiring a rebuild of all 1708 network device driver modules. 1709 171020090227: 1711 The /dev handling for the new USB stack has changed, a 1712 buildworld/installworld is required for libusb20. 1713 171420090223: 1715 The new USB2 stack has now been permanently moved in and all kernel and 1716 module names reverted to their previous values (eg, usb, ehci, ohci, 1717 ums, ...). The old usb stack can be compiled in by prefixing the name 1718 with the letter 'o', the old usb modules have been removed. 1719 Updating entry 20090216 for xorg and 20090215 for libmap may still 1720 apply. 1721 172220090217: 1723 The rc.conf(5) option if_up_delay has been renamed to 1724 defaultroute_delay to better reflect its purpose. If you have 1725 customized this setting in /etc/rc.conf you need to update it to 1726 use the new name. 1727 172820090216: 1729 xorg 7.4 wants to configure its input devices via hald which does not 1730 yet work with USB2. If the keyboard/mouse does not work in xorg then 1731 add 1732 Option "AllowEmptyInput" "off" 1733 to your ServerLayout section. This will cause X to use the configured 1734 kbd and mouse sections from your xorg.conf. 1735 173620090215: 1737 The GENERIC kernels for all architectures now default to the new USB2 1738 stack. No kernel config options or code have been removed so if a 1739 problem arises please report it and optionally revert to the old USB 1740 stack. If you are loading USB kernel modules or have a custom kernel 1741 that includes GENERIC then ensure that usb names are also changed over, 1742 eg uftdi -> usb2_serial_ftdi. 1743 1744 Older programs linked against the ports libusb 0.1 need to be 1745 redirected to the new stack's libusb20. /etc/libmap.conf can 1746 be used for this: 1747 # Map old usb library to new one for usb2 stack 1748 libusb-0.1.so.8 libusb20.so.1 1749 175020090209: 1751 All USB ethernet devices now attach as interfaces under the name ueN 1752 (eg. ue0). This is to provide a predictable name as vendors often 1753 change usb chipsets in a product without notice. 1754 175520090203: 1756 The ichsmb(4) driver has been changed to require SMBus slave 1757 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1758 All of the other SMBus controller drivers require left-justified 1759 slave addresses, so this change makes all the drivers provide the 1760 same interface. 1761 176220090201: 1763 INET6 statistics (struct ip6stat) was updated. 1764 netstat(1) needs to be recompiled. 1765 176620090119: 1767 NTFS has been removed from GENERIC kernel on amd64 to match 1768 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1769 will load ntfs.ko module automatically when NTFS support is 1770 actually needed, unless ntfs.ko is not installed or security 1771 level prohibits loading kernel modules. If either is the case, 1772 "options NTFS" has to be added into kernel config. 1773 177420090115: 1775 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1776 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1777 800061. User space tools that rely on the size of struct tcpcb in 1778 tcp_var.h (e.g. sockstat) need to be recompiled. 1779 178020081225: 1781 ng_tty(4) module updated to match the new TTY subsystem. 1782 Due to API change, user-level applications must be updated. 1783 New API support added to mpd5 CVS and expected to be present 1784 in next mpd5.3 release. 1785 178620081219: 1787 With __FreeBSD_version 800060 the makefs tool is part of 1788 the base system (it was a port). 1789 179020081216: 1791 The afdata and ifnet locks have been changed from mutexes to 1792 rwlocks, network modules will need to be re-compiled. 1793 179420081214: 1795 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1796 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1797 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1798 architecture and 40 bytes on 64-bit architecture. The userland 1799 applications "arp" and "ndp" have been updated accordingly. 1800 The output from "netstat -r" shows only routing entries and 1801 none of the L2 information. 1802 180320081130: 1804 __FreeBSD_version 800057 marks the switchover from the 1805 binary ath hal to source code. Users must add the line: 1806 1807 options AH_SUPPORT_AR5416 1808 1809 to their kernel config files when specifying: 1810 1811 device ath_hal 1812 1813 The ath_hal module no longer exists; the code is now compiled 1814 together with the driver in the ath module. It is now 1815 possible to tailor chip support (i.e. reduce the set of chips 1816 and thereby the code size); consult ath_hal(4) for details. 1817 181820081121: 1819 __FreeBSD_version 800054 adds memory barriers to 1820 <machine/atomic.h>, new interfaces to ifnet to facilitate 1821 multiple hardware transmit queues for cards that support 1822 them, and a lock-less ring-buffer implementation to 1823 enable drivers to more efficiently manage queueing of 1824 packets. 1825 182620081117: 1827 A new version of ZFS (version 13) has been merged to -HEAD. 1828 This version has zpool attribute "listsnapshots" off by 1829 default, which means "zfs list" does not show snapshots, 1830 and is the same as Solaris behavior. 1831 183220081028: 1833 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1834 183520081009: 1836 The uhci, ohci, ehci and slhci USB Host controller drivers have 1837 been put into separate modules. If you load the usb module 1838 separately through loader.conf you will need to load the 1839 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1840 controller add the following to loader.conf: 1841 1842 uhci_load="YES" 1843 ehci_load="YES" 1844 184520081009: 1846 The ABI used by the PMC toolset has changed. Please keep 1847 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1848 sync. 1849 185020081009: 1851 atapci kernel module now includes only generic PCI ATA 1852 driver. AHCI driver moved to ataahci kernel module. 1853 All vendor-specific code moved into separate kernel modules: 1854 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1855 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1856 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1857 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1858 185920080820: 1860 The TTY subsystem of the kernel has been replaced by a new 1861 implementation, which provides better scalability and an 1862 improved driver model. Most common drivers have been migrated to 1863 the new TTY subsystem, while others have not. The following 1864 drivers have not yet been ported to the new TTY layer: 1865 1866 PCI/ISA: 1867 cy, digi, rc, rp, sio 1868 1869 USB: 1870 ubser, ucycom 1871 1872 Line disciplines: 1873 ng_h4, ng_tty, ppp, sl, snp 1874 1875 Adding these drivers to your kernel configuration file shall 1876 cause compilation to fail. 1877 187820080818: 1879 ntpd has been upgraded to 4.2.4p5. 1880 188120080801: 1882 OpenSSH has been upgraded to 5.1p1. 1883 1884 For many years, FreeBSD's version of OpenSSH preferred DSA 1885 over RSA for host and user authentication keys. With this 1886 upgrade, we've switched to the vendor's default of RSA over 1887 DSA. This may cause upgraded clients to warn about unknown 1888 host keys even for previously known hosts. Users should 1889 follow the usual procedure for verifying host keys before 1890 accepting the RSA key. 1891 1892 This can be circumvented by setting the "HostKeyAlgorithms" 1893 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1894 command line. 1895 1896 Please note that the sequence of keys offered for 1897 authentication has been changed as well. You may want to 1898 specify IdentityFile in a different order to revert this 1899 behavior. 1900 190120080713: 1902 The sio(4) driver has been removed from the i386 and amd64 1903 kernel configuration files. This means uart(4) is now the 1904 default serial port driver on those platforms as well. 1905 1906 To prevent collisions with the sio(4) driver, the uart(4) driver 1907 uses different names for its device nodes. This means the 1908 onboard serial port will now most likely be called "ttyu0" 1909 instead of "ttyd0". You may need to reconfigure applications to 1910 use the new device names. 1911 1912 When using the serial port as a boot console, be sure to update 1913 /boot/device.hints and /etc/ttys before booting the new kernel. 1914 If you forget to do so, you can still manually specify the hints 1915 at the loader prompt: 1916 1917 set hint.uart.0.at="isa" 1918 set hint.uart.0.port="0x3F8" 1919 set hint.uart.0.flags="0x10" 1920 set hint.uart.0.irq="4" 1921 boot -s 1922 192320080609: 1924 The gpt(8) utility has been removed. Use gpart(8) to partition 1925 disks instead. 1926 192720080603: 1928 The version that Linuxulator emulates was changed from 2.4.2 1929 to 2.6.16. If you experience any problems with Linux binaries 1930 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1931 if it fixes the problem contact emulation mailing list. 1932 193320080525: 1934 ISDN4BSD (I4B) was removed from the src tree. You may need to 1935 update a your kernel configuration and remove relevant entries. 1936 193720080509: 1938 I have checked in code to support multiple routing tables. 1939 See the man pages setfib(1) and setfib(2). 1940 This is a hopefully backwards compatible version, 1941 but to make use of it you need to compile your kernel 1942 with options ROUTETABLES=2 (or more up to 16). 1943 194420080420: 1945 The 802.11 wireless support was redone to enable multi-bss 1946 operation on devices that are capable. The underlying device 1947 is no longer used directly but instead wlanX devices are 1948 cloned with ifconfig. This requires changes to rc.conf files. 1949 For example, change: 1950 ifconfig_ath0="WPA DHCP" 1951 to 1952 wlans_ath0=wlan0 1953 ifconfig_wlan0="WPA DHCP" 1954 see rc.conf(5) for more details. In addition, mergemaster of 1955 /etc/rc.d is highly recommended. Simultaneous update of userland 1956 and kernel wouldn't hurt either. 1957 1958 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1959 modules were merged into the base wlan module. All references 1960 to these modules (e.g. in kernel config files) must be removed. 1961 196220080408: 1963 psm(4) has gained write(2) support in native operation level. 1964 Arbitrary commands can be written to /dev/psm%d and status can 1965 be read back from it. Therefore, an application is responsible 1966 for status validation and error recovery. It is a no-op in 1967 other operation levels. 1968 196920080312: 1970 Support for KSE threading has been removed from the kernel. To 1971 run legacy applications linked against KSE libmap.conf may 1972 be used. The following libmap.conf may be used to ensure 1973 compatibility with any prior release: 1974 1975 libpthread.so.1 libthr.so.1 1976 libpthread.so.2 libthr.so.2 1977 libkse.so.3 libthr.so.3 1978 197920080301: 1980 The layout of struct vmspace has changed. This affects libkvm 1981 and any executables that link against libkvm and use the 1982 kvm_getprocs() function. In particular, but not exclusively, 1983 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1984 The effects are minimal, but it's advisable to upgrade world 1985 nonetheless. 1986 198720080229: 1988 The latest em driver no longer has support in it for the 1989 82575 adapter, this is now moved to the igb driver. The 1990 split was done to make new features that are incompatible 1991 with older hardware easier to do. 1992 199320080220: 1994 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1995 likewise the kernel option is now GEOM_LINUX_LVM. 1996 199720080211: 1998 The default NFS mount mode has changed from UDP to TCP for 1999 increased reliability. If you rely on (insecurely) NFS 2000 mounting across a firewall you may need to update your 2001 firewall rules. 2002 200320080208: 2004 Belatedly note the addition of m_collapse for compacting 2005 mbuf chains. 2006 200720080126: 2008 The fts(3) structures have been changed to use adequate 2009 integer types for their members and so to be able to cope 2010 with huge file trees. The old fts(3) ABI is preserved 2011 through symbol versioning in libc, so third-party binaries 2012 using fts(3) should still work, although they will not take 2013 advantage of the extended types. At the same time, some 2014 third-party software might fail to build after this change 2015 due to unportable assumptions made in its source code about 2016 fts(3) structure members. Such software should be fixed 2017 by its vendor or, in the worst case, in the ports tree. 2018 FreeBSD_version 800015 marks this change for the unlikely 2019 case that a portable fix is impossible. 2020 202120080123: 2022 To upgrade to -current after this date, you must be running 2023 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 2024 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 2025 202620071128: 2027 The ADAPTIVE_GIANT kernel option has been retired because its 2028 functionality is the default now. 2029 203020071118: 2031 The AT keyboard emulation of sunkbd(4) has been turned on 2032 by default. In order to make the special symbols of the Sun 2033 keyboards driven by sunkbd(4) work under X these now have 2034 to be configured the same way as Sun USB keyboards driven 2035 by ukbd(4) (which also does AT keyboard emulation), f.e.: 2036 2037 Option "XkbLayout" "us" 2038 Option "XkbRules" "xorg" 2039 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 2040 204120071024: 2042 It has been decided that it is desirable to provide ABI 2043 backwards compatibility to the FreeBSD 4/5/6 versions of the 2044 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 2045 broken with the introduction of PCI domain support (see the 2046 20070930 entry). Unfortunately, this required the ABI of 2047 PCIOCGETCONF to be broken again in order to be able to 2048 provide backwards compatibility to the old version of that 2049 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 2050 again. As for prominent ports this affects neither pciutils 2051 nor xorg-server this time, the hal port needs to be rebuilt 2052 however. 2053 205420071020: 2055 The misnamed kthread_create() and friends have been renamed 2056 to kproc_create() etc. Many of the callers already 2057 used kproc_start().. 2058 I will return kthread_create() and friends in a while 2059 with implementations that actually create threads, not procs. 2060 Renaming corresponds with version 800002. 2061 206220071010: 2063 RELENG_7 branched. 2064 2065COMMON ITEMS: 2066 2067 General Notes 2068 ------------- 2069 Avoid using make -j when upgrading. While generally safe, there are 2070 sometimes problems using -j to upgrade. If your upgrade fails with 2071 -j, please try again without -j. From time to time in the past there 2072 have been problems using -j with buildworld and/or installworld. This 2073 is especially true when upgrading between "distant" versions (eg one 2074 that cross a major release boundary or several minor releases, or when 2075 several months have passed on the -current branch). 2076 2077 Sometimes, obscure build problems are the result of environment 2078 poisoning. This can happen because the make utility reads its 2079 environment when searching for values for global variables. To run 2080 your build attempts in an "environmental clean room", prefix all make 2081 commands with 'env -i '. See the env(1) manual page for more details. 2082 2083 When upgrading from one major version to another it is generally best 2084 to upgrade to the latest code in the currently installed branch first, 2085 then do an upgrade to the new branch. This is the best-tested upgrade 2086 path, and has the highest probability of being successful. Please try 2087 this approach before reporting problems with a major version upgrade. 2088 2089 When upgrading a live system, having a root shell around before 2090 installing anything can help undo problems. Not having a root shell 2091 around can lead to problems if pam has changed too much from your 2092 starting point to allow continued authentication after the upgrade. 2093 2094 ZFS notes 2095 --------- 2096 When upgrading the boot ZFS pool to a new version, always follow 2097 these two steps: 2098 2099 1.) recompile and reinstall the ZFS boot loader and boot block 2100 (this is part of "make buildworld" and "make installworld") 2101 2102 2.) update the ZFS boot block on your boot drive 2103 2104 The following example updates the ZFS boot block on the first 2105 partition (freebsd-boot) of a GPT partitioned drive ad0: 2106 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 2107 2108 Non-boot pools do not need these updates. 2109 2110 To build a kernel 2111 ----------------- 2112 If you are updating from a prior version of FreeBSD (even one just 2113 a few days old), you should follow this procedure. It is the most 2114 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 2115 2116 make kernel-toolchain 2117 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 2118 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 2119 2120 To test a kernel once 2121 --------------------- 2122 If you just want to boot a kernel once (because you are not sure 2123 if it works, or if you want to boot a known bad kernel to provide 2124 debugging information) run 2125 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 2126 nextboot -k testkernel 2127 2128 To just build a kernel when you know that it won't mess you up 2129 -------------------------------------------------------------- 2130 This assumes you are already running a CURRENT system. Replace 2131 ${arch} with the architecture of your machine (e.g. "i386", 2132 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 2133 2134 cd src/sys/${arch}/conf 2135 config KERNEL_NAME_HERE 2136 cd ../compile/KERNEL_NAME_HERE 2137 make depend 2138 make 2139 make install 2140 2141 If this fails, go to the "To build a kernel" section. 2142 2143 To rebuild everything and install it on the current system. 2144 ----------------------------------------------------------- 2145 # Note: sometimes if you are running current you gotta do more than 2146 # is listed here if you are upgrading from a really old current. 2147 2148 <make sure you have good level 0 dumps> 2149 make buildworld 2150 make kernel KERNCONF=YOUR_KERNEL_HERE 2151 [1] 2152 <reboot in single user> [3] 2153 mergemaster -p [5] 2154 make installworld 2155 mergemaster -i [4] 2156 make delete-old [6] 2157 <reboot> 2158 2159 To cross-install current onto a separate partition 2160 -------------------------------------------------- 2161 # In this approach we use a separate partition to hold 2162 # current's root, 'usr', and 'var' directories. A partition 2163 # holding "/", "/usr" and "/var" should be about 2GB in 2164 # size. 2165 2166 <make sure you have good level 0 dumps> 2167 <boot into -stable> 2168 make buildworld 2169 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2170 <maybe newfs current's root partition> 2171 <mount current's root partition on directory ${CURRENT_ROOT}> 2172 make installworld DESTDIR=${CURRENT_ROOT} 2173 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2174 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2175 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2176 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2177 <reboot into current> 2178 <do a "native" rebuild/install as described in the previous section> 2179 <maybe install compatibility libraries from ports/misc/compat*> 2180 <reboot> 2181 2182 2183 To upgrade in-place from stable to current 2184 ---------------------------------------------- 2185 <make sure you have good level 0 dumps> 2186 make buildworld [9] 2187 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2188 [1] 2189 <reboot in single user> [3] 2190 mergemaster -p [5] 2191 make installworld 2192 mergemaster -i [4] 2193 make delete-old [6] 2194 <reboot> 2195 2196 Make sure that you've read the UPDATING file to understand the 2197 tweaks to various things you need. At this point in the life 2198 cycle of current, things change often and you are on your own 2199 to cope. The defaults can also change, so please read ALL of 2200 the UPDATING entries. 2201 2202 Also, if you are tracking -current, you must be subscribed to 2203 freebsd-current@freebsd.org. Make sure that before you update 2204 your sources that you have read and understood all the recent 2205 messages there. If in doubt, please track -stable which has 2206 much fewer pitfalls. 2207 2208 [1] If you have third party modules, such as vmware, you 2209 should disable them at this point so they don't crash your 2210 system on reboot. 2211 2212 [3] From the bootblocks, boot -s, and then do 2213 fsck -p 2214 mount -u / 2215 mount -a 2216 cd src 2217 adjkerntz -i # if CMOS is wall time 2218 Also, when doing a major release upgrade, it is required that 2219 you boot into single user mode to do the installworld. 2220 2221 [4] Note: This step is non-optional. Failure to do this step 2222 can result in a significant reduction in the functionality of the 2223 system. Attempting to do it by hand is not recommended and those 2224 that pursue this avenue should read this file carefully, as well 2225 as the archives of freebsd-current and freebsd-hackers mailing lists 2226 for potential gotchas. The -U option is also useful to consider. 2227 See mergemaster(8) for more information. 2228 2229 [5] Usually this step is a noop. However, from time to time 2230 you may need to do this if you get unknown user in the following 2231 step. It never hurts to do it all the time. You may need to 2232 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2233 install) after the buildworld before this step if you last updated 2234 from current before 20130425 or from -stable before 20130430. 2235 2236 [6] This only deletes old files and directories. Old libraries 2237 can be deleted by "make delete-old-libs", but you have to make 2238 sure that no program is using those libraries anymore. 2239 2240 [8] In order to have a kernel that can run the 4.x binaries needed to 2241 do an installworld, you must include the COMPAT_FREEBSD4 option in 2242 your kernel. Failure to do so may leave you with a system that is 2243 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2244 required to run the 5.x binaries on more recent kernels. And so on 2245 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2246 2247 Make sure that you merge any new devices from GENERIC since the 2248 last time you updated your kernel config file. 2249 2250 [9] When checking out sources, you must include the -P flag to have 2251 cvs prune empty directories. 2252 2253 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2254 "?=" instead of the "=" assignment operator, so that buildworld can 2255 override the CPUTYPE if it needs to. 2256 2257 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2258 not on the command line, or in /etc/make.conf. buildworld will 2259 warn if it is improperly defined. 2260FORMAT: 2261 2262This file contains a list, in reverse chronological order, of major 2263breakages in tracking -current. It is not guaranteed to be a complete 2264list of such breakages, and only contains entries since October 10, 2007. 2265If you need to see UPDATING entries from before that date, you will need 2266to fetch an UPDATING file from an older FreeBSD release. 2267 2268Copyright information: 2269 2270Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2271 2272Redistribution, publication, translation and use, with or without 2273modification, in full or in part, in any form or format of this 2274document are permitted without further permission from the author. 2275 2276THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2277IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2278WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2279DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2280INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2281(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2282SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2283HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2284STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2285IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2286POSSIBILITY OF SUCH DAMAGE. 2287 2288Contact Warner Losh if you have any questions about your use of 2289this document. 2290 2291$FreeBSD: releng/10.3/UPDATING 299066 2016-05-04 15:25:47Z delphij $ 2292