UPDATING revision 286912
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 1920150813: 20 10.2-RELEASE. 21 2220150731: 23 As ZFS requires more kernel stack pages than is the default on some 24 architectures e.g. i386, it now warns if KSTACK_PAGES is less than 25 ZFS_MIN_KSTACK_PAGES (which is 4 at the time of writing). 26 27 Please consider using 'options KSTACK_PAGES=X' where X is greater 28 than or equal to ZFS_MIN_KSTACK_PAGES i.e. 4 in such configurations. 29 3020150703: 31 The default Unbound configuration now enables remote control 32 using a local socket. Users who have already enabled the 33 local_unbound service should regenerate their configuration 34 by running "service local_unbound setup" as root. 35 3620150624: 37 An additional fix for the issue described in the 20150614 sendmail 38 entry below has been been committed in revision 284786. 39 4020150615: 41 The fix for the issue described in the 20150614 sendmail entry 42 below has been been committed in revision 284485. The work 43 around described in that entry is no longer needed unless the 44 default setting is overridden by a confDH_PARAMETERS configuration 45 setting of '5' or pointing to a 512 bit DH parameter file. 46 4720150614: 48 The import of openssl to address the FreeBSD-SA-15:10.openssl 49 security advisory includes a change which rejects handshakes 50 with DH parameters below 768 bits. sendmail releases prior 51 to 8.15.2 (not yet released), defaulted to a 512 bit 52 DH parameter setting for client connections. To work around 53 this interoperability, sendmail can be configured to use a 54 2048 bit DH parameter by: 55 56 1. Edit /etc/mail/`hostname`.mc 57 2. If a setting for confDH_PARAMETERS does not exist or 58 exists and is set to a string beginning with '5', 59 replace it with '2'. 60 3. If a setting for confDH_PARAMETERS exists and is set to 61 a file path, create a new file with: 62 openssl dhparam -out /path/to/file 2048 63 4. Rebuild the .cf file: 64 cd /etc/mail/; make; make install 65 5. Restart sendmail: 66 cd /etc/mail/; make restart 67 68 A sendmail patch is coming, at which time this file will be 69 updated. 70 7120150601: 72 chmod, chflags, chown and chgrp now affect symlinks in -R mode as 73 defined in symlink(7); previously symlinks were silently ignored. 74 7520150430: 76 The const qualifier has been removed from iconv(3) to comply with 77 POSIX. The ports tree is aware of this from r384038 onwards. 78 7920141215: 80 At svn r275807, The default linux compat kernel ABI has been adjusted 81 to 2.6.18 in support of the linux-c6 compat ports infrastructure 82 update. If you wish to continue using the linux-f10 compat ports, 83 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are 84 encouraged to update their linux-compat packages to linux-c6 during 85 their next update cycle. 86 87 See ports/UPDATING 20141209 and 20141215 on migration to CentOS 6 ports. 88 8920141205: 90 pjdfstest has been integrated into kyua as an opt-in test suite. 91 Please see share/doc/pjdfstest/README for a more details on how to 92 execute it. 93 9420141118: 95 10.1-RELEASE. 96 9720140904: 98 The ofwfb driver, used to provide a graphics console on PowerPC when 99 using vt(4), no longer allows mmap() of all of physical memory. This 100 will prevent Xorg on PowerPC with some ATI graphics cards from 101 initializing properly unless x11-servers/xorg-server is updated to 102 1.12.4_8 or newer. 103 10420140831: 105 The libatf-c and libatf-c++ major versions were downgraded to 0 and 106 1 respectively to match the upstream numbers. They were out of 107 sync because, when they were originally added to FreeBSD, the 108 upstream versions were not respected. These libraries are private 109 and not yet built by default, so renumbering them should be a 110 non-issue. However, unclean source trees will yield broken test 111 programs once the operator executes "make delete-old-libs" after a 112 "make installworld". 113 114 Additionally, the atf-sh binary was made private by moving it into 115 /usr/libexec/. Already-built shell test programs will keep the 116 path to the old binary so they will break after "make delete-old" 117 is run. 118 119 If you are using WITH_TESTS=yes (not the default), wipe the object 120 tree and rebuild from scratch to prevent spurious test failures. 121 This is only needed once: the misnumbered libraries and misplaced 122 binaries have been added to OptionalObsoleteFiles.inc so they will 123 be removed during a clean upgrade. 124 12520140814: 126 The ixgbe tunables now match their sysctl counterparts, for example: 127 hw.ixgbe.enable_aim => hw.ix.enable_aim 128 Anyone using ixgbe tunables should ensure they update /boot/loader.conf. 129 13020140801: 131 The NFSv4.1 server committed by r269398 changes the internal 132 function call interfaces used between the NFS and krpc modules. 133 As such, __FreeBSD_version was bumped. 134 13520140729: 136 The default unbound configuration has been modified to address 137 issues with reverse lookups on networks that use private 138 address ranges. If you use the local_unbound service, run 139 "service local_unbound setup" as root to regenerate your 140 configuration, then "service local_unbound reload" to load the 141 new configuration. 142 14320140717: 144 It is no longer necessary to include the dwarf version in your DEBUG 145 options in your kernel config file. The bug that required it to be 146 placed in the config file has bene fixed. DEBUG should now just 147 contain -g. The build system will automatically update things 148 to do the right thing. 149 15020140715: 151 Several ABI breaking changes were merged to CTL and new iSCSI code. 152 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and 153 iscsictl need to be rebuilt to work with a new kernel. 154 15520140708: 156 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 157 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 158 which differs from the behaviour controlled by this knob.) 159 16020140608: 161 On i386 and amd64 systems, the onifconsole flag is now set by default 162 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 163 as a login TTY if it is set in the bootloader as an active kernel 164 console. No changes in behavior should result otherwise. To revert to 165 the previous behavior, set ttyu0 to "off" in /etc/ttys. 166 16720140512: 168 Clang and llvm have been upgraded to 3.4.1 release. 169 17020140321: 171 Clang and llvm have been upgraded to 3.4 release. 172 17320140306: 174 If a Makefile in a tests/ directory was auto-generating a Kyuafile 175 instead of providing an explicit one, this would prevent such 176 Makefile from providing its own Kyuafile in the future during 177 NO_CLEAN builds. This has been fixed in the Makefiles but manual 178 intervention is needed to clean an objdir if you use NO_CLEAN: 179 # find /usr/obj -name Kyuafile | xargs rm -f 180 18120140303: 182 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 183 capability mode support. Please note that enabling the feature in 184 kernel is still highly recommended. 185 18620140227: 187 OpenSSH is now built with sandbox support, and will use sandbox as 188 the default privilege separation method. This requires Capsicum 189 capability mode support in kernel. 190 19120140216: 192 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 193 been deprecated and will not be part of FreeBSD 11.0 and later 194 releases. If you use this driver, please consider switching to 195 the nfe(4) driver instead. 196 19720140120: 198 10.0-RELEASE. 199 20020131216: 201 The behavior of gss_pseudo_random() for the krb5 mechanism 202 has changed, for applications requesting a longer random string 203 than produced by the underlying enctype's pseudo-random() function. 204 In particular, the random string produced from a session key of 205 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 206 be different at the 17th octet and later, after this change. 207 The counter used in the PRF+ construction is now encoded as a 208 big-endian integer in accordance with RFC 4402. 209 __FreeBSD_version is bumped to 1000701. 210 21120131108: 212 The WITHOUT_ATF build knob has been removed and its functionality 213 has been subsumed into the more generic WITHOUT_TESTS. If you were 214 using the former to disable the build of the ATF libraries, you 215 should change your settings to use the latter. 216 21720131031: 218 The default version of mtree is nmtree which is obtained from 219 NetBSD. The output is generally the same, but may vary 220 slightly. If you found you need identical output adding 221 "-F freebsd9" to the command line should do the trick. For the 222 time being, the old mtree is available as fmtree. 223 22420131014: 225 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 226 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 227 1.1.4_8 and verify bsdyml not linked in, before running "make 228 delete-old-libs": 229 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 230 or 231 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 232 23320131010: 234 The rc.d/jail script has been updated to support jail(8) 235 configuration file. The "jail_<jname>_*" rc.conf(5) variables 236 for per-jail configuration are automatically converted to 237 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 238 This is transparently backward compatible. See below about some 239 incompatibilities and rc.conf(5) manual page for more details. 240 241 These variables are now deprecated in favor of jail(8) configuration 242 file. One can use "rc.d/jail config <jname>" command to generate 243 a jail(8) configuration file in /var/run/jail.<jname>.conf without 244 running the jail(8) utility. The default pathname of the 245 configuration file is /etc/jail.conf and can be specified by 246 using $jail_conf or $jail_<jname>_conf variables. 247 248 Please note that jail_devfs_ruleset accepts an integer at 249 this moment. Please consider to rewrite the ruleset name 250 with an integer. 251 25220130930: 253 BIND has been removed from the base system. If all you need 254 is a local resolver, simply enable and start the local_unbound 255 service instead. Otherwise, several versions of BIND are 256 available in the ports tree. The dns/bind99 port is one example. 257 258 With this change, nslookup(1) and dig(1) are no longer in the base 259 system. Users should instead use host(1) and drill(1) which are 260 in the base system. Alternatively, nslookup and dig can 261 be obtained by installing the dns/bind-tools port. 262 26320130916: 264 With the addition of unbound(8), a new unbound user is now 265 required during installworld. "mergemaster -p" can be used to 266 add the user prior to installworld, as documented in the handbook. 267 26820130911: 269 OpenSSH is now built with DNSSEC support, and will by default 270 silently trust signed SSHFP records. This can be controlled with 271 the VerifyHostKeyDNS client configuration setting. DNSSEC support 272 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 273 27420130906: 275 The GNU Compiler Collection and C++ standard library (libstdc++) 276 are no longer built by default on platforms where clang is the system 277 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 278 options in src.conf. 279 28020130905: 281 The PROCDESC kernel option is now part of the GENERIC kernel 282 configuration and is required for the rwhod(8) to work. 283 If you are using custom kernel configuration, you should include 284 'options PROCDESC'. 285 28620130905: 287 The API and ABI related to the Capsicum framework was modified 288 in backward incompatible way. The userland libraries and programs 289 have to be recompiled to work with the new kernel. This includes the 290 following libraries and programs, but the whole buildworld is 291 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 292 kdump, procstat, rwho, rwhod, uniq. 293 29420130903: 295 AES-NI intrinsic support has been added to gcc. The AES-NI module 296 has been updated to use this support. A new gcc is required to build 297 the aesni module on both i386 and amd64. 298 29920130821: 300 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 301 Thus "device padlock_rng" and "device rdrand_rng" should be 302 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 303 30420130813: 305 WITH_ICONV has been split into two feature sets. WITH_ICONV now 306 enables just the iconv* functionality and is now on by default. 307 WITH_LIBICONV_COMPAT enables the libiconv api and link time 308 compatability. Set WITHOUT_ICONV to build the old way. 309 If you have been using WITH_ICONV before, you will very likely 310 need to turn on WITH_LIBICONV_COMPAT. 311 31220130806: 313 INVARIANTS option now enables DEBUG for code with OpenSolaris and 314 Illumos origin, including ZFS. If you have INVARIANTS in your 315 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 316 explicitly. 317 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 318 locks if WITNESS option was set. Because that generated a lot of 319 witness(9) reports and all of them were believed to be false 320 positives, this is no longer done. New option OPENSOLARIS_WITNESS 321 can be used to achieve the previous behavior. 322 32320130806: 324 Timer values in IPv6 data structures now use time_uptime instead 325 of time_second. Although this is not a user-visible functional 326 change, userland utilities which directly use them---ndp(8), 327 rtadvd(8), and rtsold(8) in the base system---need to be updated 328 to r253970 or later. 329 33020130802: 331 find -delete can now delete the pathnames given as arguments, 332 instead of only files found below them or if the pathname did 333 not contain any slashes. Formerly, the following error message 334 would result: 335 336 find: -delete: <path>: relative path potentially not safe 337 338 Deleting the pathnames given as arguments can be prevented 339 without error messages using -mindepth 1 or by changing 340 directory and passing "." as argument to find. This works in the 341 old as well as the new version of find. 342 34320130726: 344 Behavior of devfs rules path matching has been changed. 345 Pattern is now always matched against fully qualified devfs 346 path and slash characters must be explicitly matched by 347 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 348 subdirectories must be reviewed. 349 35020130716: 351 The default ARM ABI has changed to the ARM EABI. The old ABI is 352 incompatible with the ARM EABI and all programs and modules will 353 need to be rebuilt to work with a new kernel. 354 355 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 356 357 NOTE: Support for the old ABI will be removed in the future and 358 users are advised to upgrade. 359 36020130709: 361 pkg_install has been disconnected from the build if you really need it 362 you should add WITH_PKGTOOLS in your src.conf(5). 363 36420130709: 365 Most of network statistics structures were changed to be able 366 keep 64-bits counters. Thus all tools, that work with networking 367 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 368 36920130629: 370 Fix targets that run multiple make's to use && rather than ; 371 so that subsequent steps depend on success of previous. 372 373 NOTE: if building 'universe' with -j* on stable/8 or stable/9 374 it would be better to start the build using bmake, to avoid 375 overloading the machine. 376 37720130618: 378 Fix a bug that allowed a tracing process (e.g. gdb) to write 379 to a memory-mapped file in the traced process's address space 380 even if neither the traced process nor the tracing process had 381 write access to that file. 382 38320130615: 384 CVS has been removed from the base system. An exact copy 385 of the code is available from the devel/cvs port. 386 38720130613: 388 Some people report the following error after the switch to bmake: 389 390 make: illegal option -- J 391 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 392 ... 393 *** [buildworld] Error code 2 394 395 this likely due to an old instance of make in 396 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 397 which src/Makefile will use that blindly, if it exists, so if 398 you see the above error: 399 400 rm -rf `make -V MAKEPATH` 401 402 should resolve it. 403 40420130516: 405 Use bmake by default. 406 Whereas before one could choose to build with bmake via 407 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 408 make. The goal is to remove these knobs for 10-RELEASE. 409 410 It is worth noting that bmake (like gmake) treats the command 411 line as the unit of failure, rather than statements within the 412 command line. Thus '(cd some/where && dosomething)' is safer 413 than 'cd some/where; dosomething'. The '()' allows consistent 414 behavior in parallel build. 415 41620130429: 417 Fix a bug that allows NFS clients to issue READDIR on files. 418 41920130426: 420 The WITHOUT_IDEA option has been removed because 421 the IDEA patent expired. 422 42320130426: 424 The sysctl which controls TRIM support under ZFS has been renamed 425 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 426 enabled by default. 427 42820130425: 429 The mergemaster command now uses the default MAKEOBJDIRPREFIX 430 rather than creating it's own in the temporary directory in 431 order allow access to bootstrapped versions of tools such as 432 install and mtree. When upgrading from version of FreeBSD where 433 the install command does not support -l, you will need to 434 install a new mergemaster command if mergemaster -p is required. 435 This can be accomplished with the command (cd src/usr.sbin/mergemaster 436 && make install). 437 43820130404: 439 Legacy ATA stack, disabled and replaced by new CAM-based one since 440 FreeBSD 9.0, completely removed from the sources. Kernel modules 441 atadisk and atapi*, user-level tools atacontrol and burncd are 442 removed. Kernel option `options ATA_CAM` is now permanently enabled 443 and removed. 444 44520130319: 446 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 447 and socketpair(2). Software, in particular Kerberos, may 448 automatically detect and use these during building. The resulting 449 binaries will not work on older kernels. 450 45120130308: 452 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 453 information, see the respective 20130304 entry). 454 45520130304: 456 Recent commits to callout(9) changed the size of struct callout, 457 so the KBI is probably heavily disturbed. Also, some functions 458 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 459 by macros. Every kernel module using it won't load, so rebuild 460 is requested. 461 462 The ctl device has been re-enabled in GENERIC for i386 and amd64, 463 but does not initialize by default (because of the new CTL_DISABLE 464 option) to save memory. To re-enable it, remove the CTL_DISABLE 465 option from the kernel config file or set kern.cam.ctl.disable=0 466 in /boot/loader.conf. 467 46820130301: 469 The ctl device has been disabled in GENERIC for i386 and amd64. 470 This was done due to the extra memory being allocated at system 471 initialisation time by the ctl driver which was only used if 472 a CAM target device was created. This makes a FreeBSD system 473 unusable on 128MB or less of RAM. 474 47520130208: 476 A new compression method (lz4) has been merged to -HEAD. Please 477 refer to zpool-features(7) for more information. 478 479 Please refer to the "ZFS notes" section of this file for information 480 on upgrading boot ZFS pools. 481 48220130129: 483 A BSD-licensed patch(1) variant has been added and is installed 484 as bsdpatch, being the GNU version the default patch. 485 To inverse the logic and use the BSD-licensed one as default, 486 while having the GNU version installed as gnupatch, rebuild 487 and install world with the WITH_BSD_PATCH knob set. 488 48920130121: 490 Due to the use of the new -l option to install(1) during build 491 and install, you must take care not to directly set the INSTALL 492 make variable in your /etc/make.conf, /etc/src.conf, or on the 493 command line. If you wish to use the -C flag for all installs 494 you may be able to add INSTALL+=-C to /etc/make.conf or 495 /etc/src.conf. 496 49720130118: 498 The install(1) option -M has changed meaning and now takes an 499 argument that is a file or path to append logs to. In the 500 unlikely event that -M was the last option on the command line 501 and the command line contained at least two files and a target 502 directory the first file will have logs appended to it. The -M 503 option served little practical purpose in the last decade so its 504 use is expected to be extremely rare. 505 50620121223: 507 After switching to Clang as the default compiler some users of ZFS 508 on i386 systems started to experience stack overflow kernel panics. 509 Please consider using 'options KSTACK_PAGES=4' in such configurations. 510 51120121222: 512 GEOM_LABEL now mangles label names read from file system metadata. 513 Mangling affect labels containing spaces, non-printable characters, 514 '%' or '"'. Device names in /etc/fstab and other places may need to 515 be updated. 516 51720121217: 518 By default, only the 10 most recent kernel dumps will be saved. To 519 restore the previous behaviour (no limit on the number of kernel dumps 520 stored in the dump directory) add the following line to /etc/rc.conf: 521 522 savecore_flags="" 523 52420121201: 525 With the addition of auditdistd(8), a new auditdistd user is now 526 required during installworld. "mergemaster -p" can be used to 527 add the user prior to installworld, as documented in the handbook. 528 52920121117: 530 The sin6_scope_id member variable in struct sockaddr_in6 is now 531 filled by the kernel before passing the structure to the userland via 532 sysctl or routing socket. This means the KAME-specific embedded scope 533 id in sin6_addr.s6_addr[2] is always cleared in userland application. 534 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 535 __FreeBSD_version is bumped to 1000025. 536 53720121105: 538 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 539 This means that the world and kernel will be compiled with clang 540 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 541 and /usr/bin/cpp. To disable this behavior and revert to building 542 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 543 of current may need to bootstrap WITHOUT_CLANG first if the clang 544 build fails (its compatibility window doesn't extend to the 9 stable 545 branch point). 546 54720121102: 548 The IPFIREWALL_FORWARD kernel option has been removed. Its 549 functionality now turned on by default. 550 55120121023: 552 The ZERO_COPY_SOCKET kernel option has been removed and 553 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 554 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 555 mechanism which is not safe and may result in kernel crashes. 556 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 557 driver supports disposeable external page sized mbuf storage. 558 Proper replacements for both zero-copy mechanisms are under 559 consideration and will eventually lead to complete removal 560 of the two kernel options. 561 56220121023: 563 The IPv4 network stack has been converted to network byte 564 order. The following modules need to be recompiled together 565 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 566 pf(4), ipfw(4), ng_ipfw(4), stf(4). 567 56820121022: 569 Support for non-MPSAFE filesystems was removed from VFS. The 570 VFS_VERSION was bumped, all filesystem modules shall be 571 recompiled. 572 57320121018: 574 All the non-MPSAFE filesystems have been disconnected from 575 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 576 portalfs, smbfs, xfs. 577 57820121016: 579 The interface cloning API and ABI has changed. The following 580 modules need to be recompiled together with kernel: 581 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 582 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 583 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 584 58520121015: 586 The sdhci driver was split in two parts: sdhci (generic SD Host 587 Controller logic) and sdhci_pci (actual hardware driver). 588 No kernel config modifications are required, but if you 589 load sdhc as a module you must switch to sdhci_pci instead. 590 59120121014: 592 Import the FUSE kernel and userland support into base system. 593 59420121013: 595 The GNU sort(1) program has been removed since the BSD-licensed 596 sort(1) has been the default for quite some time and no serious 597 problems have been reported. The corresponding WITH_GNU_SORT 598 knob has also gone. 599 60020121006: 601 The pfil(9) API/ABI for AF_INET family has been changed. Packet 602 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 603 with new kernel. 604 60520121001: 606 The net80211(4) ABI has been changed to allow for improved driver 607 PS-POLL and power-save support. All wireless drivers need to be 608 recompiled to work with the new kernel. 609 61020120913: 611 The random(4) support for the VIA hardware random number 612 generator (`PADLOCK') is no longer enabled unconditionally. 613 Add the padlock_rng device in the custom kernel config if 614 needed. The GENERIC kernels on i386 and amd64 do include the 615 device, so the change only affects the custom kernel 616 configurations. 617 61820120908: 619 The pf(4) packet filter ABI has been changed. pfctl(8) and 620 snmp_pf module need to be recompiled to work with new kernel. 621 62220120828: 623 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 624 to -HEAD. Pools that have empty_bpobj in active state can not be 625 imported read-write with ZFS implementations that do not support 626 this feature. For more information read the zpool-features(5) 627 manual page. 628 62920120727: 630 The sparc64 ZFS loader has been changed to no longer try to auto- 631 detect ZFS providers based on diskN aliases but now requires these 632 to be explicitly listed in the OFW boot-device environment variable. 633 63420120712: 635 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 636 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 637 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 638 63920120712: 640 The following sysctls and tunables have been renamed for consistency 641 with other variables: 642 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 643 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 644 64520120628: 646 The sort utility has been replaced with BSD sort. For now, GNU sort 647 is also available as "gnusort" or the default can be set back to 648 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 649 installed as "bsdsort". 650 65120120611: 652 A new version of ZFS (pool version 5000) has been merged to -HEAD. 653 Starting with this version the old system of ZFS pool versioning 654 is superseded by "feature flags". This concept enables forward 655 compatibility against certain future changes in functionality of ZFS 656 pools. The first read-only compatible "feature flag" for ZFS pools 657 is named "com.delphix:async_destroy". For more information 658 read the new zpool-features(5) manual page. 659 Please refer to the "ZFS notes" section of this file for information 660 on upgrading boot ZFS pools. 661 66220120417: 663 The malloc(3) implementation embedded in libc now uses sources imported 664 as contrib/jemalloc. The most disruptive API change is to 665 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 666 delete it prior to installworld, and optionally re-create it using the 667 new format after rebooting. See malloc.conf(5) for details 668 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 669 NAMESPACE section). 670 67120120328: 672 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 673 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 674 now spelled mips. This is to aid compatibility with third-party 675 software that expects this naming scheme in uname(3). Little-endian 676 settings are unchanged. If you are updating a big-endian mips64 machine 677 from before this change, you may need to set MACHINE_ARCH=mips64 in 678 your environment before the new build system will recognize your machine. 679 68020120306: 681 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 682 platforms. 683 68420120229: 685 Now unix domain sockets behave "as expected" on nullfs(5). Previously 686 nullfs(5) did not pass through all behaviours to the underlying layer, 687 as a result if we bound to a socket on the lower layer we could connect 688 only to the lower path; if we bound to the upper layer we could connect 689 only to the upper path. The new behavior is one can connect to both the 690 lower and the upper paths regardless what layer path one binds to. 691 69220120211: 693 The getifaddrs upgrade path broken with 20111215 has been restored. 694 If you have upgraded in between 20111215 and 20120209 you need to 695 recompile libc again with your kernel. You still need to recompile 696 world to be able to configure CARP but this restriction already 697 comes from 20111215. 698 69920120114: 700 The set_rcvar() function has been removed from /etc/rc.subr. All 701 base and ports rc.d scripts have been updated, so if you have a 702 port installed with a script in /usr/local/etc/rc.d you can either 703 hand-edit the rcvar= line, or reinstall the port. 704 705 An easy way to handle the mass-update of /etc/rc.d: 706 rm /etc/rc.d/* && mergemaster -i 707 70820120109: 709 panic(9) now stops other CPUs in the SMP systems, disables interrupts 710 on the current CPU and prevents other threads from running. 711 This behavior can be reverted using the kern.stop_scheduler_on_panic 712 tunable/sysctl. 713 The new behavior can be incompatible with kern.sync_on_panic. 714 71520111215: 716 The carp(4) facility has been changed significantly. Configuration 717 of the CARP protocol via ifconfig(8) has changed, as well as format 718 of CARP events submitted to devd(8) has changed. See manual pages 719 for more information. The arpbalance feature of carp(4) is currently 720 not supported anymore. 721 722 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 723 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 724 need to be recompiled. 725 72620111122: 727 The acpi_wmi(4) status device /dev/wmistat has been renamed to 728 /dev/wmistat0. 729 73020111108: 731 The option VFS_ALLOW_NONMPSAFE option has been added in order to 732 explicitely support non-MPSAFE filesystems. 733 It is on by default for all supported platform at this present 734 time. 735 73620111101: 737 The broken amd(4) driver has been replaced with esp(4) in the amd64, 738 i386 and pc98 GENERIC kernel configuration files. 739 74020110930: 741 sysinstall has been removed 742 74320110923: 744 The stable/9 branch created in subversion. This corresponds to the 745 RELENG_9 branch in CVS. 746 74720110913: 748 This commit modifies vfs_register() so that it uses a hash 749 calculation to set vfc_typenum, which is enabled by default. 750 The first time a system is booted after this change, the 751 vfc_typenum values will change for all file systems. The 752 main effect of this is a change to the NFS server file handles 753 for file systems that use vfc_typenum in their fsid, such as ZFS. 754 It will, however, prevent vfc_typenum from changing when file 755 systems are loaded in a different order for subsequent reboots. 756 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 757 until you are ready to remount all NFS clients after a reboot. 758 75920110828: 760 Bump the shared library version numbers for libraries that 761 do not use symbol versioning, have changed the ABI compared 762 to stable/8 and which shared library version was not bumped. 763 Done as part of 9.0-RELEASE cycle. 764 76520110815: 766 During the merge of Capsicum features, the fget(9) KPI was modified. 767 This may require the rebuilding of out-of-tree device drivers -- 768 issues have been reported specifically with the nVidia device driver. 769 __FreeBSD_version is bumped to 900041. 770 771 Also, there is a period between 20110811 and 20110814 where the 772 special devices /dev/{stdin,stdout,stderr} did not work correctly. 773 Building world from a kernel during that window may not work. 774 77520110628: 776 The packet filter (pf) code has been updated to OpenBSD 4.5. 777 You need to update userland tools to be in sync with kernel. 778 This update breaks backward compatibility with earlier pfsync(4) 779 versions. Care must be taken when updating redundant firewall setups. 780 78120110608: 782 The following sysctls and tunables are retired on x86 platforms: 783 machdep.hlt_cpus 784 machdep.hlt_logical_cpus 785 The following sysctl is retired: 786 machdep.hyperthreading_allowed 787 The sysctls were supposed to provide a way to dynamically offline and 788 online selected CPUs on x86 platforms, but the implementation has not 789 been reliable especially with SCHED_ULE scheduler. 790 machdep.hyperthreading_allowed tunable is still available to ignore 791 hyperthreading CPUs at OS level. 792 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 793 where X is an APIC ID of a CPU. Be advised, though, that disabling 794 CPUs in non-uniform fashion will result in non-uniform topology and 795 may lead to sub-optimal system performance with SCHED_ULE, which is 796 a default scheduler. 797 79820110607: 799 cpumask_t type is retired and cpuset_t is used in order to describe 800 a mask of CPUs. 801 80220110531: 803 Changes to ifconfig(8) for dynamic address family detection mandate 804 that you are running a kernel of 20110525 or later. Make sure to 805 follow the update procedure to boot a new kernel before installing 806 world. 807 80820110513: 809 Support for sun4v architecture is officially dropped 810 81120110503: 812 Several KPI breaking changes have been committed to the mii(4) layer, 813 the PHY drivers and consequently some Ethernet drivers using mii(4). 814 This means that miibus.ko and the modules of the affected Ethernet 815 drivers need to be recompiled. 816 817 Note to kernel developers: Given that the OUI bit reversion problem 818 was fixed as part of these changes all mii(4) commits related to OUIs, 819 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 820 handling, no longer can be merged verbatim to stable/8 and previous 821 branches. 822 82320110430: 824 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 825 into their kernel configurations along with 'device pci'. 826 82720110427: 828 The default NFS client is now the new NFS client, so fstype "newnfs" 829 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 830 Although mounts via fstype "nfs" will usually work without userland 831 changes, it is recommended that the mount(8) and mount_nfs(8) 832 commands be rebuilt from sources and that a link to mount_nfs called 833 mount_oldnfs be created. The new client is compiled into the 834 kernel with "options NFSCL" and this is needed for diskless root 835 file systems. The GENERIC kernel configs have been changed to use 836 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 837 To use the regular/old client, you can "mount -t oldnfs ...". For 838 a diskless root file system, you must also include a line like: 839 840 vfs.root.mountfrom="oldnfs:" 841 842 in the boot/loader.conf on the root fs on the NFS server to make 843 a diskless root fs use the old client. 844 84520110424: 846 The GENERIC kernels for all architectures now default to the new 847 CAM-based ATA stack. It means that all legacy ATA drivers were 848 removed and replaced by respective CAM drivers. If you are using 849 ATA device names in /etc/fstab or other places, make sure to update 850 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 851 where 'Y's are the sequential numbers starting from zero for each type 852 in order of detection, unless configured otherwise with tunables, 853 see cam(4)). There will be symbolic links created in /dev/ to map 854 old adX devices to the respective adaY. They should provide basic 855 compatibility for file systems mounting in most cases, but they do 856 not support old user-level APIs and do not have respective providers 857 in GEOM. Consider using updated management tools with new device names. 858 859 It is possible to load devices ahci, ata, siis and mvs as modules, 860 but option ATA_CAM should remain in kernel configuration to make ata 861 module work as CAM driver supporting legacy ATA controllers. Device ata 862 still can be used in modular fashion (atacore + ...). Modules atadisk 863 and atapi* are not used and won't affect operation in ATA_CAM mode. 864 Note that to use CAM-based ATA kernel should include CAM devices 865 scbus, pass, da (or explicitly ada), cd and optionally others. All of 866 them are parts of the cam module. 867 868 ataraid(4) functionality is now supported by the RAID GEOM class. 869 To use it you can load geom_raid kernel module and use graid(8) tool 870 for management. Instead of /dev/arX device names, use /dev/raid/rX. 871 872 No kernel config options or code have been removed, so if a problem 873 arises, please report it and optionally revert to the old ATA stack. 874 In order to do it you can remove from the kernel config: 875 options ATA_CAM 876 device ahci 877 device mvs 878 device siis 879 , and instead add back: 880 device atadisk # ATA disk drives 881 device ataraid # ATA RAID drives 882 device atapicd # ATAPI CDROM drives 883 device atapifd # ATAPI floppy drives 884 device atapist # ATAPI tape drives 885 88620110423: 887 The default NFS server has been changed to the new server, which 888 was referred to as the experimental server. If you need to switch 889 back to the old NFS server, you must now put the "-o" option on 890 both the mountd and nfsd commands. This can be done using the 891 mountd_flags and nfs_server_flags rc.conf variables until an 892 update to the rc scripts is committed, which is coming soon. 893 89420110418: 895 The GNU Objective-C runtime library (libobjc), and other Objective-C 896 related components have been removed from the base system. If you 897 require an Objective-C library, please use one of the available ports. 898 89920110331: 900 ath(4) has been split into bus- and device- modules. if_ath contains 901 the HAL, the TX rate control and the network device code. if_ath_pci 902 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 903 contains the AHB glue. Users need to load both if_ath_pci and if_ath 904 in order to use ath on everything else. 905 906 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 907 need to load if_ath and if_ath_pci for ath(4) operation. 908 90920110314: 910 As part of the replacement of sysinstall, the process of building 911 release media has changed significantly. For details, please re-read 912 release(7), which has been updated to reflect the new build process. 913 91420110218: 915 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 916 is the last available version under GPLv2. It brings a number of new 917 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 918 4.1 and SSE 4.2), better support for powerpc64, a number of new 919 directives, and lots of other small improvements. See the ChangeLog 920 file in contrib/binutils for the full details. 921 92220110218: 923 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 924 compliant, and will now use half of hash for authentication. 925 This will break interoperability with all stacks (including all 926 actual FreeBSD versions) who implement 927 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 928 authentication). 929 The only workaround with such peers is to use another HMAC 930 algorithm for IPsec ("phase 2") authentication. 931 93220110207: 933 Remove the uio_yield prototype and symbol. This function has 934 been misnamed since it was introduced and should not be 935 globally exposed with this name. The equivalent functionality 936 is now available using kern_yield(curthread->td_user_pri). 937 The function remains undocumented. 938 93920110112: 940 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 941 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 942 for scalar sysctls is defined but disabled. Code that needs 943 UQUAD to pass the type checking that must compile on older 944 systems where the define is not present can check against 945 __FreeBSD_version >= 900030. 946 947 The system dialog(1) has been replaced with a new version previously 948 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 949 with the previous version, but the libdialog associated with it has 950 a largely incompatible API. As such, the original version of libdialog 951 will be kept temporarily as libodialog, until its base system consumers 952 are replaced or updated. Bump __FreeBSD_version to 900030. 953 95420110103: 955 If you are trying to run make universe on a -stable system, and you get 956 the following warning: 957 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 958 unknown. config(8) likely too old." 959 or something similar to it, then you must upgrade your -stable system 960 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 961 stable/8) or build the config from the latest stable/8 branch and 962 install it on your system. 963 964 Prior to this date, building a current universe on 8-stable system from 965 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 966 error in the first kernel build phase. A new config on those old 967 systems will fix that problem for older versions of -current. 968 96920101228: 970 The TCP stack has been modified to allow Khelp modules to interact with 971 it via helper hook points and store per-connection data in the TCP 972 control block. Bump __FreeBSD_version to 900029. User space tools that 973 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 974 be recompiled. 975 97620101114: 977 Generic IEEE 802.3 annex 31B full duplex flow control support has been 978 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 979 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 980 to take advantage of it instead of using custom implementations. This 981 means that these drivers now no longer unconditionally advertise 982 support for flow control but only do so if flow control is a selected 983 media option. This was implemented in the generic support that way in 984 order to allow flow control to be switched on and off via ifconfig(8) 985 with the PHY specific default to typically off in order to protect 986 from unwanted effects. Consequently, if you used flow control with 987 one of the above mentioned drivers you now need to explicitly enable 988 it, for example via: 989 ifconfig bge0 media auto mediaopt flowcontrol 990 991 Along with the above mentioned changes generic support for setting 992 1000baseT master mode also has been added and brgphy(4), ciphy(4), 993 e1000phy(4) as well as ip1000phy(4) have been converted to take 994 advantage of it. This means that these drivers now no longer take the 995 link0 parameter for selecting master mode but the master media option 996 has to be used instead, for example like in the following: 997 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 998 999 Selection of master mode now is also available with all other PHY 1000 drivers supporting 1000baseT. 1001 100220101111: 1003 The TCP stack has received a significant update to add support for 1004 modularised congestion control and generally improve the clarity of 1005 congestion control decisions. Bump __FreeBSD_version to 900025. User 1006 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 1007 sockstat) need to be recompiled. 1008 100920101002: 1010 The man(1) utility has been replaced by a new version that no longer 1011 uses /etc/manpath.config. Please consult man.conf(5) for how to 1012 migrate local entries to the new format. 1013 101420100928: 1015 The copyright strings printed by login(1) and sshd(8) at the time of a 1016 new connection have been removed to follow other operating systems and 1017 upstream sshd. 1018 101920100915: 1020 A workaround for a fixed ld bug has been removed in kernel code, 1021 so make sure that your system ld is built from sources after 1022 revision 210245 from 2010-07-19 (r211583 if building head kernel 1023 on stable/8, r211584 for stable/7; both from 2010-08-21). 1024 A symptom of incorrect ld version is different addresses for 1025 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 1026 102720100913: 1028 The $ipv6_prefer variable in rc.conf(5) has been split into 1029 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 1030 1031 The $ip6addrctl_policy is a variable to choose a pre-defined 1032 address selection policy set by ip6addrctl(8). A value 1033 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 1034 default is "AUTO". 1035 1036 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 1037 flag (see an entry of 20090926) is set on an interface with no 1038 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 1039 security reason. If you want IPv6 link-local address on all 1040 interfaces by default, set this to "YES". 1041 1042 The old ipv6_prefer="YES" is equivalent to 1043 ipv6_activate_all_interfaces="YES" and 1044 ip6addrctl_policy="ipv6_prefer". 1045 104620100913: 1047 DTrace has grown support for userland tracing. Due to this, DTrace is 1048 now i386 and amd64 only. 1049 dtruss(1) is now installed by default on those systems and a new 1050 kernel module is needed for userland tracing: fasttrap. 1051 No changes to your kernel config file are necessary to enable 1052 userland tracing, but you might consider adding 'STRIP=' and 1053 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 1054 to have informative userland stack traces in DTrace (ustack). 1055 105620100725: 1057 The acpi_aiboost(4) driver has been removed in favor of the new 1058 aibs(4) driver. You should update your kernel configuration file. 1059 106020100722: 1061 BSD grep has been imported to the base system and it is built by 1062 default. It is completely BSD licensed, highly GNU-compatible, uses 1063 less memory than its GNU counterpart and has a small codebase. 1064 However, it is slower than its GNU counterpart, which is mostly 1065 noticeable for larger searches, for smaller ones it is measurable 1066 but not significant. The reason is complex, the most important factor 1067 is that we lack a modern and efficient regex library and GNU 1068 overcomes this by optimizing the searches internally. Future work 1069 on improving the regex performance is planned, for the meantime, 1070 users that need better performance, can build GNU grep instead by 1071 setting the WITH_GNU_GREP knob. 1072 107320100713: 1074 Due to the import of powerpc64 support, all existing powerpc kernel 1075 configuration files must be updated with a machine directive like this: 1076 machine powerpc powerpc 1077 1078 In addition, an updated config(8) is required to build powerpc kernels 1079 after this change. 1080 108120100713: 1082 A new version of ZFS (version 15) has been merged to -HEAD. 1083 This version uses a python library for the following subcommands: 1084 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 1085 For full functionality of these commands the following port must 1086 be installed: sysutils/py-zfs 1087 108820100429: 1089 'vm_page's are now hashed by physical address to an array of mutexes. 1090 Currently this is only used to serialize access to hold_count. Over 1091 time the page queue mutex will be peeled away. This changes the size 1092 of pmap on every architecture. And requires all callers of vm_page_hold 1093 and vm_page_unhold to be updated. 1094 109520100402: 1096 WITH_CTF can now be specified in src.conf (not recommended, there 1097 are some problems with static executables), make.conf (would also 1098 affect ports which do not use GNU make and do not override the 1099 compile targets) or in the kernel config (via "makeoptions 1100 WITH_CTF=yes"). 1101 When WITH_CTF was specified there before this was silently ignored, 1102 so make sure that WITH_CTF is not used in places which could lead 1103 to unwanted behavior. 1104 110520100311: 1106 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1107 to allow 32-bit compatibility on non-x86 platforms. All kernel 1108 configurations on amd64 and ia64 platforms using these options must 1109 be modified accordingly. 1110 111120100113: 1112 The utmp user accounting database has been replaced with utmpx, 1113 the user accounting interface standardized by POSIX. 1114 Unfortunately the semantics of utmp and utmpx don't match, 1115 making it practically impossible to support both interfaces. 1116 The user accounting database is used by tools like finger(1), 1117 last(1), talk(1), w(1) and ac(8). 1118 1119 All applications in the base system use utmpx. This means only 1120 local binaries (e.g. from the ports tree) may still use these 1121 utmp database files. These applications must be rebuilt to make 1122 use of utmpx. 1123 1124 After the system has been upgraded, it is safe to remove the old 1125 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1126 assuming their contents is of no importance anymore. Old wtmp 1127 databases can only be used by last(1) and ac(8) after they have 1128 been converted to the new format using wtmpcvt(1). 1129 113020100108: 1131 Introduce the kernel thread "deadlock resolver" (which can be enabled 1132 via the DEADLKRES option, see NOTES for more details) and the 1133 sleepq_type() function for sleepqueues. 1134 113520091202: 1136 The rc.firewall and rc.firewall6 were unified, and 1137 rc.firewall6 and rc.d/ip6fw were removed. 1138 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1139 variables are obsoleted. Instead, the following new rc 1140 variables are added to rc.d/ipfw: 1141 1142 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1143 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1144 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1145 1146 The meanings correspond to the relevant IPv4 variables. 1147 114820091125: 1149 8.0-RELEASE. 1150 115120091113: 1152 The default terminal emulation for syscons(4) has been changed 1153 from cons25 to xterm on all platforms except pc98. This means 1154 that the /etc/ttys file needs to be updated to ensure correct 1155 operation of applications on the console. 1156 1157 The terminal emulation style can be toggled per window by using 1158 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1159 options can be used to change the compile-time default back to 1160 cons25. 1161 1162 To prevent graphical artifacts, make sure the TERM environment 1163 variable is set to match the terminal emulation that is being 1164 performed by syscons(4). 1165 116620091109: 1167 The layout of the structure ieee80211req_scan_result has changed. 1168 Applications that require wireless scan results (e.g. ifconfig(8)) 1169 from net80211 need to be recompiled. 1170 1171 Applications such as wpa_supplicant(8) may require a full world 1172 build without using NO_CLEAN in order to get synchronized with the 1173 new structure. 1174 117520091025: 1176 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1177 There's one kernel module for each firmware. Adding "device iwnfw" 1178 to the kernel configuration file means including all three firmware 1179 images inside the kernel. If you want to include just the one for 1180 your wireless card, use the devices iwn4965fw, iwn5000fw or 1181 iwn5150fw. 1182 118320090926: 1184 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1185 into rc.d/netif. The changes are the following: 1186 1187 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1188 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1189 Note that both variables need the "inet6" keyword at the head. 1190 1191 Do not set $ipv6_network_interfaces manually if you do not 1192 understand what you are doing. It is not needed in most cases. 1193 1194 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1195 they are obsolete. 1196 1197 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1198 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1199 1200 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1201 all configured interfaces have "inet6 accept_rtadv" in the 1202 $ifconfig_IF_ipv6. These are for backward compatibility. 1203 1204 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1205 functionality of interfaces with no corresponding 1206 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1207 and the default address selection policy of ip6addrctl(8) 1208 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1209 Note that if you want to configure IPv6 functionality on the 1210 disabled interfaces after boot, first you need to clear the flag by 1211 using ifconfig(8) like: 1212 1213 ifconfig em0 inet6 -ifdisabled 1214 1215 If YES, the default address selection policy is set as 1216 IPv6-preferred. 1217 1218 The default value of $ipv6_prefer is NO. 1219 1220 4. If your system need to receive Router Advertisement messages, 1221 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1222 scripts automatically invoke rtsol(8) when the interface becomes 1223 UP. The Router Advertisement messages are used for SLAAC 1224 (State-Less Address AutoConfiguration). 1225 122620090922: 1227 802.11s D3.03 support was committed. This is incompatible with the 1228 previous code, which was based on D3.0. 1229 123020090912: 1231 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1232 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1233 control whether accepting Router Advertisement messages or not. 1234 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1235 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1236 The ifconfig(8) utility now supports these flags. 1237 123820090910: 1239 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1240 mount(8) and -a option for df(1) to see them. 1241 124220090825: 1243 The old tunable hw.bus.devctl_disable has been superseded by 1244 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1245 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1246 is 1000. 1247 124820090813: 1249 Remove the option STOP_NMI. The default action is now to use NMI only 1250 for KDB via the newly introduced function stop_cpus_hard() and 1251 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1252 125320090803: 1254 The stable/8 branch created in subversion. This corresponds to the 1255 RELENG_8 branch in CVS. 1256 125720090719: 1258 Bump the shared library version numbers for all libraries that do not 1259 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1260 __FreeBSD_version to 800105. 1261 126220090714: 1263 Due to changes in the implementation of virtual network stack support, 1264 all network-related kernel modules must be recompiled. As this change 1265 breaks the ABI, bump __FreeBSD_version to 800104. 1266 126720090713: 1268 The TOE interface to the TCP syncache has been modified to remove 1269 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1270 The cxgb driver is the only TOE consumer affected by this change, and 1271 needs to be recompiled along with the kernel. As this change breaks 1272 the ABI, bump __FreeBSD_version to 800103. 1273 127420090712: 1275 Padding has been added to struct tcpcb, sackhint and tcpstat in 1276 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1277 maintaining the ABI. However, this change breaks the ABI, so bump 1278 __FreeBSD_version to 800102. User space tools that rely on the size of 1279 any of these structs (e.g. sockstat) need to be recompiled. 1280 128120090630: 1282 The NFS_LEGACYRPC option has been removed along with the old kernel 1283 RPC implementation that this option selected. Kernel configurations 1284 may need to be adjusted. 1285 128620090629: 1287 The network interface device nodes at /dev/net/<interface> have been 1288 removed. All ioctl operations can be performed the normal way using 1289 routing sockets. The kqueue functionality can generally be replaced 1290 with routing sockets. 1291 129220090628: 1293 The documentation from the FreeBSD Documentation Project (Handbook, 1294 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1295 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1296 129720090624: 1298 The ABI of various structures related to the SYSV IPC API have been 1299 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1300 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1301 800100. 1302 130320090622: 1304 Layout of struct vnet has changed as routing related variables were 1305 moved to their own Vimage module. Modules need to be recompiled. Bump 1306 __FreeBSD_version to 800099. 1307 130820090619: 1309 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1310 respectively. As long as no more than 16 groups per process are used, 1311 no changes should be visible. When more than 16 groups are used, old 1312 binaries may fail if they call getgroups() or getgrouplist() with 1313 statically sized storage. Recompiling will work around this, but 1314 applications should be modified to use dynamically allocated storage 1315 for group arrays as POSIX.1-2008 does not cap an implementation's 1316 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1317 1318 NFS and portalfs mounts may also be affected as the list of groups is 1319 truncated to 16. Users of NFS who use more than 16 groups, should 1320 take care that negative group permissions are not used on the exported 1321 file systems as they will not be reliable unless a GSSAPI based 1322 authentication method is used. 1323 132420090616: 1325 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1326 option compiles in the support for adaptive spinning for lockmgrs 1327 which want to enable it. The lockinit() function now accepts the flag 1328 LK_ADAPTIVE in order to make the lock object subject to adaptive 1329 spinning when both held in write and read mode. 1330 133120090613: 1332 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1333 changed. User applications that use this ioctl need to be rebuilt. 1334 133520090611: 1336 The layout of struct thread has changed. Kernel and modules need to 1337 be rebuilt. 1338 133920090608: 1340 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1341 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1342 134320090602: 1344 window(1) has been removed from the base system. It can now be 1345 installed from ports. The port is called misc/window. 1346 134720090601: 1348 The way we are storing and accessing `routing table' entries has 1349 changed. Programs reading the FIB, like netstat, need to be 1350 re-compiled. 1351 135220090601: 1353 A new netisr implementation has been added for FreeBSD 8. Network 1354 file system modules, such as igmp, ipdivert, and others, should be 1355 rebuilt. 1356 Bump __FreeBSD_version to 800096. 1357 135820090530: 1359 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1360 more valid. 1361 136220090530: 1363 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1364 Bump __FreeBSD_version to 800094. 1365 136620090529: 1367 Add mnt_xflag field to 'struct mount'. File system modules need to be 1368 rebuilt. 1369 Bump __FreeBSD_version to 800093. 1370 137120090528: 1372 The compiling option ADAPTIVE_SX has been retired while it has been 1373 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1374 The KPI for sx_init_flags() changes as accepting flags: 1375 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1376 been introduced in order to handle the reversed logic. 1377 Bump __FreeBSD_version to 800092. 1378 137920090527: 1380 Add support for hierarchical jails. Remove global securelevel. 1381 Bump __FreeBSD_version to 800091. 1382 138320090523: 1384 The layout of struct vnet_net has changed, therefore modules 1385 need to be rebuilt. 1386 Bump __FreeBSD_version to 800090. 1387 138820090523: 1389 The newly imported zic(8) produces a new format in the output. Please 1390 run tzsetup(8) to install the newly created data to /etc/localtime. 1391 139220090520: 1393 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1394 hw.usb.* and is now consistent again with previous releases. 1395 139620090520: 1397 802.11 monitor mode support was revised and driver api's were changed. 1398 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1399 of DLT_IEEE802_11. No user-visible data structures were changed but 1400 applications that use DLT_IEEE802_11 may require changes. 1401 Bump __FreeBSD_version to 800088. 1402 140320090430: 1404 The layout of the following structs has changed: sysctl_oid, 1405 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1406 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1407 panics may be experienced. World rebuild is required for 1408 correctly checking networking state from userland. 1409 Bump __FreeBSD_version to 800085. 1410 141120090429: 1412 MLDv2 and Source-Specific Multicast (SSM) have been merged 1413 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1414 The implementation of SSM within FreeBSD's IPv6 stack closely 1415 follows the IPv4 implementation. 1416 1417 For kernel developers: 1418 1419 * The most important changes are that the ip6_output() and 1420 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1421 and this lock has been downgraded to a non-recursive mutex. 1422 1423 * As with the changes to the IPv4 stack to support SSM, filtering 1424 of inbound multicast traffic must now be performed by transport 1425 protocols within the IPv6 stack. This does not apply to TCP and 1426 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1427 1428 * The KPIs used by IPv6 multicast are similar to those used by 1429 the IPv4 stack, with the following differences: 1430 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1431 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1432 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1433 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1434 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1435 for MLDv1 have an additional 'timer' argument which is used to 1436 jitter the initial membership report for the solicited-node 1437 multicast membership on-link. 1438 * This is not strictly needed for MLDv2, which already jitters 1439 its report transmissions. However, the 'timer' argument is 1440 preserved in case MLDv1 is active on the interface. 1441 1442 * The KAME linked-list based IPv6 membership implementation has 1443 been refactored to use a vector similar to that used by the IPv4 1444 stack. 1445 Code which maintains a list of its own multicast memberships 1446 internally, e.g. carp, has been updated to reflect the new 1447 semantics. 1448 1449 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1450 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1451 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1452 implementation constraint which needs to be addressed in HEAD. 1453 1454 For application developers: 1455 1456 * The changes are broadly similar to those made for the IPv4 1457 stack. 1458 1459 * The use of IPv4 and IPv6 multicast socket options on the same 1460 socket, using mapped addresses, HAS NOT been tested or supported. 1461 1462 * There are a number of issues with the implementation of various 1463 IPv6 multicast APIs which need to be resolved in the API surface 1464 before the implementation is fully compatible with KAME userland 1465 use, and these are mostly to do with interface index treatment. 1466 1467 * The literature available discusses the use of either the delta / ASM 1468 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1469 using setsourcefilter(3)/getsourcefilter(3). For more information 1470 please refer to RFC 3768, 'Socket Interface Extensions for 1471 Multicast Source Filters'. 1472 1473 * Applications which use the published RFC 3678 APIs should be fine. 1474 1475 For systems administrators: 1476 1477 * The mtest(8) utility has been refactored to support IPv6, in 1478 addition to IPv4. Interface addresses are no longer accepted 1479 as arguments, their names must be used instead. The utility 1480 will map the interface name to its first IPv4 address as 1481 returned by getifaddrs(3). 1482 1483 * The ifmcstat(8) utility has also been updated to print the MLDv2 1484 endpoint state and source filter lists via sysctl(3). 1485 1486 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1487 loopback of IPv6 multicast datagrams by default; it defaults to 1 1488 to preserve the existing behaviour. Disabling multicast loopback is 1489 recommended for optimal system performance. 1490 1491 * The IPv6 MROUTING code has been changed to examine this sysctl 1492 instead of attempting to perform a group lookup before looping 1493 back forwarded datagrams. 1494 1495 Bump __FreeBSD_version to 800084. 1496 149720090422: 1498 Implement low-level Bluetooth HCI API. 1499 Bump __FreeBSD_version to 800083. 1500 150120090419: 1502 The layout of struct malloc_type, used by modules to register new 1503 memory allocation types, has changed. Most modules will need to 1504 be rebuilt or panics may be experienced. 1505 Bump __FreeBSD_version to 800081. 1506 150720090415: 1508 Anticipate overflowing inp_flags - add inp_flags2. 1509 This changes most offsets in inpcb, so checking v4 connection 1510 state will require a world rebuild. 1511 Bump __FreeBSD_version to 800080. 1512 151320090415: 1514 Add an llentry to struct route and struct route_in6. Modules 1515 embedding a struct route will need to be recompiled. 1516 Bump __FreeBSD_version to 800079. 1517 151820090414: 1519 The size of rt_metrics_lite and by extension rtentry has changed. 1520 Networking administration apps will need to be recompiled. 1521 The route command now supports show as an alias for get, weighting 1522 of routes, sticky and nostick flags to alter the behavior of stateful 1523 load balancing. 1524 Bump __FreeBSD_version to 800078. 1525 152620090408: 1527 Do not use Giant for kbdmux(4) locking. This is wrong and 1528 apparently causing more problems than it solves. This will 1529 re-open the issue where interrupt handlers may race with 1530 kbdmux(4) in polling mode. Typical symptoms include (but 1531 not limited to) duplicated and/or missing characters when 1532 low level console functions (such as gets) are used while 1533 interrupts are enabled (for example geli password prompt, 1534 mountroot prompt etc.). Disabling kbdmux(4) may help. 1535 153620090407: 1537 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1538 kernel modules referencing any of the above need to be recompiled. 1539 Bump __FreeBSD_version to 800075. 1540 154120090320: 1542 GEOM_PART has become the default partition slicer for storage devices, 1543 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1544 introduces some changes: 1545 1546 MSDOS/EBR: the devices created from MSDOS extended partition entries 1547 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1548 to devices with offset-based names. fstabs may need to be modified. 1549 1550 BSD: the "geometry does not match label" warning is harmless in most 1551 cases but it points to problems in file system misalignment with 1552 disk geometry. The "c" partition is now implicit, covers the whole 1553 top-level drive and cannot be (mis)used by users. 1554 1555 General: Kernel dumps are now not allowed to be written to devices 1556 whose partition types indicate they are meant to be used for file 1557 systems (or, in case of MSDOS partitions, as something else than 1558 the "386BSD" type). 1559 1560 Most of these changes date approximately from 200812. 1561 156220090319: 1563 The uscanner(4) driver has been removed from the kernel. This follows 1564 Linux removing theirs in 2.6 and making libusb the default interface 1565 (supported by sane). 1566 156720090319: 1568 The multicast forwarding code has been cleaned up. netstat(1) 1569 only relies on KVM now for printing bandwidth upcall meters. 1570 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1571 ip6_mroute_mod respectively. The config(5) options for statically 1572 compiling this code remain the same, i.e. 'options MROUTING'. 1573 157420090315: 1575 Support for the IFF_NEEDSGIANT network interface flag has been 1576 removed, which means that non-MPSAFE network device drivers are no 1577 longer supported. In particular, if_ar, if_sr, and network device 1578 drivers from the old (legacy) USB stack can no longer be built or 1579 used. 1580 158120090313: 1582 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1583 a bunch of new language catalog files have also been added. 1584 This means that some common libc messages are now localized and 1585 they depend on the LC_MESSAGES environmental variable. 1586 158720090313: 1588 The k8temp(4) driver has been renamed to amdtemp(4) since 1589 support for Family 10 and Family 11 CPU families was added. 1590 159120090309: 1592 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1593 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1594 1595 For kernel developers, the most important changes are that the 1596 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1597 and this lock has been downgraded to a non-recursive mutex. 1598 1599 Transport protocols (UDP, Raw IP) are now responsible for filtering 1600 inbound multicast traffic according to group membership and source 1601 filters. The imo_multicast_filter() KPI exists for this purpose. 1602 Transports which do not use multicast (SCTP, TCP) already reject 1603 multicast by default. Forwarding and receive performance may improve 1604 as a mutex acquisition is no longer needed in the ip_input() 1605 low-level input path. in_addmulti() and in_delmulti() are shimmed 1606 to new KPIs which exist to support SSM in-kernel. 1607 1608 For application developers, it is recommended that loopback of 1609 multicast datagrams be disabled for best performance, as this 1610 will still cause the lock to be taken for each looped-back 1611 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1612 be tuned to 0 to disable loopback by default; it defaults to 1 1613 to preserve the existing behaviour. 1614 1615 For systems administrators, to obtain best performance with 1616 multicast reception and multiple groups, it is always recommended 1617 that a card with a suitably precise hash filter is used. Hash 1618 collisions will still result in the lock being taken within the 1619 transport protocol input path to check group membership. 1620 1621 If deploying FreeBSD in an environment with IGMP snooping switches, 1622 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1623 enabled; this forces 224.0.0.0/24 group membership to be announced 1624 via IGMP. 1625 1626 The size of 'struct igmpstat' has changed; netstat needs to be 1627 recompiled to reflect this. 1628 Bump __FreeBSD_version to 800070. 1629 163020090309: 1631 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1632 updated to use it. This requires a buildworld/installworld in order to 1633 update the library and dependencies (usbconfig, etc). Its advisable to 1634 rebuild all ports which uses libusb. More specific directions are given 1635 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1636 libusb are no longer required and can be removed. 1637 163820090302: 1639 A workaround is committed to allow the creation of System V shared 1640 memory segment of size > 2 GB on the 64-bit architectures. 1641 Due to a limitation of the existing ABI, the shm_segsz member 1642 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1643 wrong for large segments. Note that limits must be explicitly 1644 raised to allow such segments to be created. 1645 164620090301: 1647 The layout of struct ifnet has changed, requiring a rebuild of all 1648 network device driver modules. 1649 165020090227: 1651 The /dev handling for the new USB stack has changed, a 1652 buildworld/installworld is required for libusb20. 1653 165420090223: 1655 The new USB2 stack has now been permanently moved in and all kernel and 1656 module names reverted to their previous values (eg, usb, ehci, ohci, 1657 ums, ...). The old usb stack can be compiled in by prefixing the name 1658 with the letter 'o', the old usb modules have been removed. 1659 Updating entry 20090216 for xorg and 20090215 for libmap may still 1660 apply. 1661 166220090217: 1663 The rc.conf(5) option if_up_delay has been renamed to 1664 defaultroute_delay to better reflect its purpose. If you have 1665 customized this setting in /etc/rc.conf you need to update it to 1666 use the new name. 1667 166820090216: 1669 xorg 7.4 wants to configure its input devices via hald which does not 1670 yet work with USB2. If the keyboard/mouse does not work in xorg then 1671 add 1672 Option "AllowEmptyInput" "off" 1673 to your ServerLayout section. This will cause X to use the configured 1674 kbd and mouse sections from your xorg.conf. 1675 167620090215: 1677 The GENERIC kernels for all architectures now default to the new USB2 1678 stack. No kernel config options or code have been removed so if a 1679 problem arises please report it and optionally revert to the old USB 1680 stack. If you are loading USB kernel modules or have a custom kernel 1681 that includes GENERIC then ensure that usb names are also changed over, 1682 eg uftdi -> usb2_serial_ftdi. 1683 1684 Older programs linked against the ports libusb 0.1 need to be 1685 redirected to the new stack's libusb20. /etc/libmap.conf can 1686 be used for this: 1687 # Map old usb library to new one for usb2 stack 1688 libusb-0.1.so.8 libusb20.so.1 1689 169020090209: 1691 All USB ethernet devices now attach as interfaces under the name ueN 1692 (eg. ue0). This is to provide a predictable name as vendors often 1693 change usb chipsets in a product without notice. 1694 169520090203: 1696 The ichsmb(4) driver has been changed to require SMBus slave 1697 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1698 All of the other SMBus controller drivers require left-justified 1699 slave addresses, so this change makes all the drivers provide the 1700 same interface. 1701 170220090201: 1703 INET6 statistics (struct ip6stat) was updated. 1704 netstat(1) needs to be recompiled. 1705 170620090119: 1707 NTFS has been removed from GENERIC kernel on amd64 to match 1708 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1709 will load ntfs.ko module automatically when NTFS support is 1710 actually needed, unless ntfs.ko is not installed or security 1711 level prohibits loading kernel modules. If either is the case, 1712 "options NTFS" has to be added into kernel config. 1713 171420090115: 1715 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1716 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1717 800061. User space tools that rely on the size of struct tcpcb in 1718 tcp_var.h (e.g. sockstat) need to be recompiled. 1719 172020081225: 1721 ng_tty(4) module updated to match the new TTY subsystem. 1722 Due to API change, user-level applications must be updated. 1723 New API support added to mpd5 CVS and expected to be present 1724 in next mpd5.3 release. 1725 172620081219: 1727 With __FreeBSD_version 800060 the makefs tool is part of 1728 the base system (it was a port). 1729 173020081216: 1731 The afdata and ifnet locks have been changed from mutexes to 1732 rwlocks, network modules will need to be re-compiled. 1733 173420081214: 1735 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1736 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1737 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1738 architecture and 40 bytes on 64-bit architecture. The userland 1739 applications "arp" and "ndp" have been updated accordingly. 1740 The output from "netstat -r" shows only routing entries and 1741 none of the L2 information. 1742 174320081130: 1744 __FreeBSD_version 800057 marks the switchover from the 1745 binary ath hal to source code. Users must add the line: 1746 1747 options AH_SUPPORT_AR5416 1748 1749 to their kernel config files when specifying: 1750 1751 device ath_hal 1752 1753 The ath_hal module no longer exists; the code is now compiled 1754 together with the driver in the ath module. It is now 1755 possible to tailor chip support (i.e. reduce the set of chips 1756 and thereby the code size); consult ath_hal(4) for details. 1757 175820081121: 1759 __FreeBSD_version 800054 adds memory barriers to 1760 <machine/atomic.h>, new interfaces to ifnet to facilitate 1761 multiple hardware transmit queues for cards that support 1762 them, and a lock-less ring-buffer implementation to 1763 enable drivers to more efficiently manage queueing of 1764 packets. 1765 176620081117: 1767 A new version of ZFS (version 13) has been merged to -HEAD. 1768 This version has zpool attribute "listsnapshots" off by 1769 default, which means "zfs list" does not show snapshots, 1770 and is the same as Solaris behavior. 1771 177220081028: 1773 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1774 177520081009: 1776 The uhci, ohci, ehci and slhci USB Host controller drivers have 1777 been put into separate modules. If you load the usb module 1778 separately through loader.conf you will need to load the 1779 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1780 controller add the following to loader.conf: 1781 1782 uhci_load="YES" 1783 ehci_load="YES" 1784 178520081009: 1786 The ABI used by the PMC toolset has changed. Please keep 1787 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1788 sync. 1789 179020081009: 1791 atapci kernel module now includes only generic PCI ATA 1792 driver. AHCI driver moved to ataahci kernel module. 1793 All vendor-specific code moved into separate kernel modules: 1794 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1795 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1796 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1797 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1798 179920080820: 1800 The TTY subsystem of the kernel has been replaced by a new 1801 implementation, which provides better scalability and an 1802 improved driver model. Most common drivers have been migrated to 1803 the new TTY subsystem, while others have not. The following 1804 drivers have not yet been ported to the new TTY layer: 1805 1806 PCI/ISA: 1807 cy, digi, rc, rp, sio 1808 1809 USB: 1810 ubser, ucycom 1811 1812 Line disciplines: 1813 ng_h4, ng_tty, ppp, sl, snp 1814 1815 Adding these drivers to your kernel configuration file shall 1816 cause compilation to fail. 1817 181820080818: 1819 ntpd has been upgraded to 4.2.4p5. 1820 182120080801: 1822 OpenSSH has been upgraded to 5.1p1. 1823 1824 For many years, FreeBSD's version of OpenSSH preferred DSA 1825 over RSA for host and user authentication keys. With this 1826 upgrade, we've switched to the vendor's default of RSA over 1827 DSA. This may cause upgraded clients to warn about unknown 1828 host keys even for previously known hosts. Users should 1829 follow the usual procedure for verifying host keys before 1830 accepting the RSA key. 1831 1832 This can be circumvented by setting the "HostKeyAlgorithms" 1833 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1834 command line. 1835 1836 Please note that the sequence of keys offered for 1837 authentication has been changed as well. You may want to 1838 specify IdentityFile in a different order to revert this 1839 behavior. 1840 184120080713: 1842 The sio(4) driver has been removed from the i386 and amd64 1843 kernel configuration files. This means uart(4) is now the 1844 default serial port driver on those platforms as well. 1845 1846 To prevent collisions with the sio(4) driver, the uart(4) driver 1847 uses different names for its device nodes. This means the 1848 onboard serial port will now most likely be called "ttyu0" 1849 instead of "ttyd0". You may need to reconfigure applications to 1850 use the new device names. 1851 1852 When using the serial port as a boot console, be sure to update 1853 /boot/device.hints and /etc/ttys before booting the new kernel. 1854 If you forget to do so, you can still manually specify the hints 1855 at the loader prompt: 1856 1857 set hint.uart.0.at="isa" 1858 set hint.uart.0.port="0x3F8" 1859 set hint.uart.0.flags="0x10" 1860 set hint.uart.0.irq="4" 1861 boot -s 1862 186320080609: 1864 The gpt(8) utility has been removed. Use gpart(8) to partition 1865 disks instead. 1866 186720080603: 1868 The version that Linuxulator emulates was changed from 2.4.2 1869 to 2.6.16. If you experience any problems with Linux binaries 1870 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1871 if it fixes the problem contact emulation mailing list. 1872 187320080525: 1874 ISDN4BSD (I4B) was removed from the src tree. You may need to 1875 update a your kernel configuration and remove relevant entries. 1876 187720080509: 1878 I have checked in code to support multiple routing tables. 1879 See the man pages setfib(1) and setfib(2). 1880 This is a hopefully backwards compatible version, 1881 but to make use of it you need to compile your kernel 1882 with options ROUTETABLES=2 (or more up to 16). 1883 188420080420: 1885 The 802.11 wireless support was redone to enable multi-bss 1886 operation on devices that are capable. The underlying device 1887 is no longer used directly but instead wlanX devices are 1888 cloned with ifconfig. This requires changes to rc.conf files. 1889 For example, change: 1890 ifconfig_ath0="WPA DHCP" 1891 to 1892 wlans_ath0=wlan0 1893 ifconfig_wlan0="WPA DHCP" 1894 see rc.conf(5) for more details. In addition, mergemaster of 1895 /etc/rc.d is highly recommended. Simultaneous update of userland 1896 and kernel wouldn't hurt either. 1897 1898 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1899 modules were merged into the base wlan module. All references 1900 to these modules (e.g. in kernel config files) must be removed. 1901 190220080408: 1903 psm(4) has gained write(2) support in native operation level. 1904 Arbitrary commands can be written to /dev/psm%d and status can 1905 be read back from it. Therefore, an application is responsible 1906 for status validation and error recovery. It is a no-op in 1907 other operation levels. 1908 190920080312: 1910 Support for KSE threading has been removed from the kernel. To 1911 run legacy applications linked against KSE libmap.conf may 1912 be used. The following libmap.conf may be used to ensure 1913 compatibility with any prior release: 1914 1915 libpthread.so.1 libthr.so.1 1916 libpthread.so.2 libthr.so.2 1917 libkse.so.3 libthr.so.3 1918 191920080301: 1920 The layout of struct vmspace has changed. This affects libkvm 1921 and any executables that link against libkvm and use the 1922 kvm_getprocs() function. In particular, but not exclusively, 1923 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1924 The effects are minimal, but it's advisable to upgrade world 1925 nonetheless. 1926 192720080229: 1928 The latest em driver no longer has support in it for the 1929 82575 adapter, this is now moved to the igb driver. The 1930 split was done to make new features that are incompatible 1931 with older hardware easier to do. 1932 193320080220: 1934 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1935 likewise the kernel option is now GEOM_LINUX_LVM. 1936 193720080211: 1938 The default NFS mount mode has changed from UDP to TCP for 1939 increased reliability. If you rely on (insecurely) NFS 1940 mounting across a firewall you may need to update your 1941 firewall rules. 1942 194320080208: 1944 Belatedly note the addition of m_collapse for compacting 1945 mbuf chains. 1946 194720080126: 1948 The fts(3) structures have been changed to use adequate 1949 integer types for their members and so to be able to cope 1950 with huge file trees. The old fts(3) ABI is preserved 1951 through symbol versioning in libc, so third-party binaries 1952 using fts(3) should still work, although they will not take 1953 advantage of the extended types. At the same time, some 1954 third-party software might fail to build after this change 1955 due to unportable assumptions made in its source code about 1956 fts(3) structure members. Such software should be fixed 1957 by its vendor or, in the worst case, in the ports tree. 1958 FreeBSD_version 800015 marks this change for the unlikely 1959 case that a portable fix is impossible. 1960 196120080123: 1962 To upgrade to -current after this date, you must be running 1963 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1964 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1965 196620071128: 1967 The ADAPTIVE_GIANT kernel option has been retired because its 1968 functionality is the default now. 1969 197020071118: 1971 The AT keyboard emulation of sunkbd(4) has been turned on 1972 by default. In order to make the special symbols of the Sun 1973 keyboards driven by sunkbd(4) work under X these now have 1974 to be configured the same way as Sun USB keyboards driven 1975 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1976 1977 Option "XkbLayout" "us" 1978 Option "XkbRules" "xorg" 1979 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1980 198120071024: 1982 It has been decided that it is desirable to provide ABI 1983 backwards compatibility to the FreeBSD 4/5/6 versions of the 1984 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1985 broken with the introduction of PCI domain support (see the 1986 20070930 entry). Unfortunately, this required the ABI of 1987 PCIOCGETCONF to be broken again in order to be able to 1988 provide backwards compatibility to the old version of that 1989 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1990 again. As for prominent ports this affects neither pciutils 1991 nor xorg-server this time, the hal port needs to be rebuilt 1992 however. 1993 199420071020: 1995 The misnamed kthread_create() and friends have been renamed 1996 to kproc_create() etc. Many of the callers already 1997 used kproc_start().. 1998 I will return kthread_create() and friends in a while 1999 with implementations that actually create threads, not procs. 2000 Renaming corresponds with version 800002. 2001 200220071010: 2003 RELENG_7 branched. 2004 2005COMMON ITEMS: 2006 2007 General Notes 2008 ------------- 2009 Avoid using make -j when upgrading. While generally safe, there are 2010 sometimes problems using -j to upgrade. If your upgrade fails with 2011 -j, please try again without -j. From time to time in the past there 2012 have been problems using -j with buildworld and/or installworld. This 2013 is especially true when upgrading between "distant" versions (eg one 2014 that cross a major release boundary or several minor releases, or when 2015 several months have passed on the -current branch). 2016 2017 Sometimes, obscure build problems are the result of environment 2018 poisoning. This can happen because the make utility reads its 2019 environment when searching for values for global variables. To run 2020 your build attempts in an "environmental clean room", prefix all make 2021 commands with 'env -i '. See the env(1) manual page for more details. 2022 2023 When upgrading from one major version to another it is generally best 2024 to upgrade to the latest code in the currently installed branch first, 2025 then do an upgrade to the new branch. This is the best-tested upgrade 2026 path, and has the highest probability of being successful. Please try 2027 this approach before reporting problems with a major version upgrade. 2028 2029 When upgrading a live system, having a root shell around before 2030 installing anything can help undo problems. Not having a root shell 2031 around can lead to problems if pam has changed too much from your 2032 starting point to allow continued authentication after the upgrade. 2033 2034 ZFS notes 2035 --------- 2036 When upgrading the boot ZFS pool to a new version, always follow 2037 these two steps: 2038 2039 1.) recompile and reinstall the ZFS boot loader and boot block 2040 (this is part of "make buildworld" and "make installworld") 2041 2042 2.) update the ZFS boot block on your boot drive 2043 2044 The following example updates the ZFS boot block on the first 2045 partition (freebsd-boot) of a GPT partitioned drive ad0: 2046 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 2047 2048 Non-boot pools do not need these updates. 2049 2050 To build a kernel 2051 ----------------- 2052 If you are updating from a prior version of FreeBSD (even one just 2053 a few days old), you should follow this procedure. It is the most 2054 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 2055 2056 make kernel-toolchain 2057 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 2058 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 2059 2060 To test a kernel once 2061 --------------------- 2062 If you just want to boot a kernel once (because you are not sure 2063 if it works, or if you want to boot a known bad kernel to provide 2064 debugging information) run 2065 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 2066 nextboot -k testkernel 2067 2068 To just build a kernel when you know that it won't mess you up 2069 -------------------------------------------------------------- 2070 This assumes you are already running a CURRENT system. Replace 2071 ${arch} with the architecture of your machine (e.g. "i386", 2072 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 2073 2074 cd src/sys/${arch}/conf 2075 config KERNEL_NAME_HERE 2076 cd ../compile/KERNEL_NAME_HERE 2077 make depend 2078 make 2079 make install 2080 2081 If this fails, go to the "To build a kernel" section. 2082 2083 To rebuild everything and install it on the current system. 2084 ----------------------------------------------------------- 2085 # Note: sometimes if you are running current you gotta do more than 2086 # is listed here if you are upgrading from a really old current. 2087 2088 <make sure you have good level 0 dumps> 2089 make buildworld 2090 make kernel KERNCONF=YOUR_KERNEL_HERE 2091 [1] 2092 <reboot in single user> [3] 2093 mergemaster -p [5] 2094 make installworld 2095 mergemaster -i [4] 2096 make delete-old [6] 2097 <reboot> 2098 2099 To cross-install current onto a separate partition 2100 -------------------------------------------------- 2101 # In this approach we use a separate partition to hold 2102 # current's root, 'usr', and 'var' directories. A partition 2103 # holding "/", "/usr" and "/var" should be about 2GB in 2104 # size. 2105 2106 <make sure you have good level 0 dumps> 2107 <boot into -stable> 2108 make buildworld 2109 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2110 <maybe newfs current's root partition> 2111 <mount current's root partition on directory ${CURRENT_ROOT}> 2112 make installworld DESTDIR=${CURRENT_ROOT} 2113 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2114 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2115 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2116 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2117 <reboot into current> 2118 <do a "native" rebuild/install as described in the previous section> 2119 <maybe install compatibility libraries from ports/misc/compat*> 2120 <reboot> 2121 2122 2123 To upgrade in-place from stable to current 2124 ---------------------------------------------- 2125 <make sure you have good level 0 dumps> 2126 make buildworld [9] 2127 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2128 [1] 2129 <reboot in single user> [3] 2130 mergemaster -p [5] 2131 make installworld 2132 mergemaster -i [4] 2133 make delete-old [6] 2134 <reboot> 2135 2136 Make sure that you've read the UPDATING file to understand the 2137 tweaks to various things you need. At this point in the life 2138 cycle of current, things change often and you are on your own 2139 to cope. The defaults can also change, so please read ALL of 2140 the UPDATING entries. 2141 2142 Also, if you are tracking -current, you must be subscribed to 2143 freebsd-current@freebsd.org. Make sure that before you update 2144 your sources that you have read and understood all the recent 2145 messages there. If in doubt, please track -stable which has 2146 much fewer pitfalls. 2147 2148 [1] If you have third party modules, such as vmware, you 2149 should disable them at this point so they don't crash your 2150 system on reboot. 2151 2152 [3] From the bootblocks, boot -s, and then do 2153 fsck -p 2154 mount -u / 2155 mount -a 2156 cd src 2157 adjkerntz -i # if CMOS is wall time 2158 Also, when doing a major release upgrade, it is required that 2159 you boot into single user mode to do the installworld. 2160 2161 [4] Note: This step is non-optional. Failure to do this step 2162 can result in a significant reduction in the functionality of the 2163 system. Attempting to do it by hand is not recommended and those 2164 that pursue this avenue should read this file carefully, as well 2165 as the archives of freebsd-current and freebsd-hackers mailing lists 2166 for potential gotchas. The -U option is also useful to consider. 2167 See mergemaster(8) for more information. 2168 2169 [5] Usually this step is a noop. However, from time to time 2170 you may need to do this if you get unknown user in the following 2171 step. It never hurts to do it all the time. You may need to 2172 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2173 install) after the buildworld before this step if you last updated 2174 from current before 20130425 or from -stable before 20130430. 2175 2176 [6] This only deletes old files and directories. Old libraries 2177 can be deleted by "make delete-old-libs", but you have to make 2178 sure that no program is using those libraries anymore. 2179 2180 [8] In order to have a kernel that can run the 4.x binaries needed to 2181 do an installworld, you must include the COMPAT_FREEBSD4 option in 2182 your kernel. Failure to do so may leave you with a system that is 2183 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2184 required to run the 5.x binaries on more recent kernels. And so on 2185 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2186 2187 Make sure that you merge any new devices from GENERIC since the 2188 last time you updated your kernel config file. 2189 2190 [9] When checking out sources, you must include the -P flag to have 2191 cvs prune empty directories. 2192 2193 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2194 "?=" instead of the "=" assignment operator, so that buildworld can 2195 override the CPUTYPE if it needs to. 2196 2197 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2198 not on the command line, or in /etc/make.conf. buildworld will 2199 warn if it is improperly defined. 2200FORMAT: 2201 2202This file contains a list, in reverse chronological order, of major 2203breakages in tracking -current. It is not guaranteed to be a complete 2204list of such breakages, and only contains entries since October 10, 2007. 2205If you need to see UPDATING entries from before that date, you will need 2206to fetch an UPDATING file from an older FreeBSD release. 2207 2208Copyright information: 2209 2210Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2211 2212Redistribution, publication, translation and use, with or without 2213modification, in full or in part, in any form or format of this 2214document are permitted without further permission from the author. 2215 2216THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2217IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2218WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2219DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2220INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2221(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2222SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2223HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2224STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2225IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2226POSSIBILITY OF SUCH DAMAGE. 2227 2228Contact Warner Losh if you have any questions about your use of 2229this document. 2230 2231$FreeBSD: stable/10/UPDATING 286912 2015-08-19 00:26:54Z gjb $ 2232