UPDATING revision 315847
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 1920170323: 20 The code that provides support for ZFS .zfs/ directory functionality 21 has been reimplemented. It's not possible now to create a snapshot 22 by mkdir under .zfs/snapshot/. That should be the only user visible 23 change. 24 2520160124: 26 The NONE and HPN patches has been removed from OpenSSH. They are 27 still available in the security/openssh-portable port. 28 2920151214: 30 r292223 changed the internal interface between the nfsd.ko and 31 nfscommon.ko modules. As such, they must both be upgraded to-gether. 32 __FreeBSD_version has been bumped because of this. 33 3420151113: 35 Qlogic 24xx/25xx firmware images were updated from 5.5.0 to 7.3.0. 36 Kernel modules isp_2400_multi and isp_2500_multi were removed and 37 should be replaced with isp_2400 and isp_2500 modules respectively. 38 3920150806: 40 The menu.rc and loader.rc files will now be replaced during 41 upgrades. Please migrate local changes to menu.rc.local and 42 loader.rc.local instead. 43 4420151026: 45 NTP has been upgraded to 4.2.8p4. 46 4720151025: 48 ALLOW_DEPRECATED_ATF_TOOLS/ATFFILE support has been removed from 49 atf.test.mk (included from bsd.test.mk). Please upgrade devel/atf 50 and devel/kyua to version 0.20+ and adjust any calling code to work 51 with Kyuafile and kyua. 52 5320150823: 54 The polarity of Pulse Per Second (PPS) capture events with the 55 uart(4) driver has been corrected. Prior to this change the PPS 56 "assert" event corresponded to the trailing edge of a positive PPS 57 pulse and the "clear" event was the leading edge of the next pulse. 58 59 As the width of a PPS pulse in a typical GPS receiver is on the 60 order of 1 millisecond, most users will not notice any significant 61 difference with this change. 62 63 Anyone who has compensated for the historical polarity reversal by 64 configuring a negative offset equal to the pulse width will need to 65 remove that workaround. 66 6720150822: 68 From legacy ata(4) driver was removed support for SATA controllers 69 supported by more functional drivers ahci(4), siis(4) and mvs(4). 70 Kernel modules ataahci and ataadaptec were removed completely, 71 replaced by ahci and mvs modules respectively. 72 7320150813: 74 10.2-RELEASE. 75 7620150731: 77 As ZFS requires more kernel stack pages than is the default on some 78 architectures e.g. i386, it now warns if KSTACK_PAGES is less than 79 ZFS_MIN_KSTACK_PAGES (which is 4 at the time of writing). 80 81 Please consider using 'options KSTACK_PAGES=X' where X is greater 82 than or equal to ZFS_MIN_KSTACK_PAGES i.e. 4 in such configurations. 83 8420150703: 85 The default Unbound configuration now enables remote control 86 using a local socket. Users who have already enabled the 87 local_unbound service should regenerate their configuration 88 by running "service local_unbound setup" as root. 89 9020150624: 91 An additional fix for the issue described in the 20150614 sendmail 92 entry below has been been committed in revision 284786. 93 9420150615: 95 The fix for the issue described in the 20150614 sendmail entry 96 below has been been committed in revision 284485. The work 97 around described in that entry is no longer needed unless the 98 default setting is overridden by a confDH_PARAMETERS configuration 99 setting of '5' or pointing to a 512 bit DH parameter file. 100 10120150614: 102 The import of openssl to address the FreeBSD-SA-15:10.openssl 103 security advisory includes a change which rejects handshakes 104 with DH parameters below 768 bits. sendmail releases prior 105 to 8.15.2 (not yet released), defaulted to a 512 bit 106 DH parameter setting for client connections. To work around 107 this interoperability, sendmail can be configured to use a 108 2048 bit DH parameter by: 109 110 1. Edit /etc/mail/`hostname`.mc 111 2. If a setting for confDH_PARAMETERS does not exist or 112 exists and is set to a string beginning with '5', 113 replace it with '2'. 114 3. If a setting for confDH_PARAMETERS exists and is set to 115 a file path, create a new file with: 116 openssl dhparam -out /path/to/file 2048 117 4. Rebuild the .cf file: 118 cd /etc/mail/; make; make install 119 5. Restart sendmail: 120 cd /etc/mail/; make restart 121 122 A sendmail patch is coming, at which time this file will be 123 updated. 124 12520150601: 126 chmod, chflags, chown and chgrp now affect symlinks in -R mode as 127 defined in symlink(7); previously symlinks were silently ignored. 128 12920150430: 130 The const qualifier has been removed from iconv(3) to comply with 131 POSIX. The ports tree is aware of this from r384038 onwards. 132 13320141215: 134 At svn r275807, The default linux compat kernel ABI has been adjusted 135 to 2.6.18 in support of the linux-c6 compat ports infrastructure 136 update. If you wish to continue using the linux-f10 compat ports, 137 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are 138 encouraged to update their linux-compat packages to linux-c6 during 139 their next update cycle. 140 141 See ports/UPDATING 20141209 and 20141215 on migration to CentOS 6 ports. 142 14320141205: 144 pjdfstest has been integrated into kyua as an opt-in test suite. 145 Please see share/doc/pjdfstest/README for a more details on how to 146 execute it. 147 14820141118: 149 10.1-RELEASE. 150 15120140904: 152 The ofwfb driver, used to provide a graphics console on PowerPC when 153 using vt(4), no longer allows mmap() of all of physical memory. This 154 will prevent Xorg on PowerPC with some ATI graphics cards from 155 initializing properly unless x11-servers/xorg-server is updated to 156 1.12.4_8 or newer. 157 15820140831: 159 The libatf-c and libatf-c++ major versions were downgraded to 0 and 160 1 respectively to match the upstream numbers. They were out of 161 sync because, when they were originally added to FreeBSD, the 162 upstream versions were not respected. These libraries are private 163 and not yet built by default, so renumbering them should be a 164 non-issue. However, unclean source trees will yield broken test 165 programs once the operator executes "make delete-old-libs" after a 166 "make installworld". 167 168 Additionally, the atf-sh binary was made private by moving it into 169 /usr/libexec/. Already-built shell test programs will keep the 170 path to the old binary so they will break after "make delete-old" 171 is run. 172 173 If you are using WITH_TESTS=yes (not the default), wipe the object 174 tree and rebuild from scratch to prevent spurious test failures. 175 This is only needed once: the misnumbered libraries and misplaced 176 binaries have been added to OptionalObsoleteFiles.inc so they will 177 be removed during a clean upgrade. 178 17920140814: 180 The ixgbe tunables now match their sysctl counterparts, for example: 181 hw.ixgbe.enable_aim => hw.ix.enable_aim 182 Anyone using ixgbe tunables should ensure they update /boot/loader.conf. 183 18420140801: 185 The NFSv4.1 server committed by r269398 changes the internal 186 function call interfaces used between the NFS and krpc modules. 187 As such, __FreeBSD_version was bumped. 188 18920140729: 190 The default unbound configuration has been modified to address 191 issues with reverse lookups on networks that use private 192 address ranges. If you use the local_unbound service, run 193 "service local_unbound setup" as root to regenerate your 194 configuration, then "service local_unbound reload" to load the 195 new configuration. 196 19720140717: 198 It is no longer necessary to include the dwarf version in your DEBUG 199 options in your kernel config file. The bug that required it to be 200 placed in the config file has bene fixed. DEBUG should now just 201 contain -g. The build system will automatically update things 202 to do the right thing. 203 20420140715: 205 Several ABI breaking changes were merged to CTL and new iSCSI code. 206 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and 207 iscsictl need to be rebuilt to work with a new kernel. 208 20920140708: 210 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 211 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 212 which differs from the behaviour controlled by this knob.) 213 21420140608: 215 On i386 and amd64 systems, the onifconsole flag is now set by default 216 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 217 as a login TTY if it is set in the bootloader as an active kernel 218 console. No changes in behavior should result otherwise. To revert to 219 the previous behavior, set ttyu0 to "off" in /etc/ttys. 220 22120140512: 222 Clang and llvm have been upgraded to 3.4.1 release. 223 22420140321: 225 Clang and llvm have been upgraded to 3.4 release. 226 22720140306: 228 If a Makefile in a tests/ directory was auto-generating a Kyuafile 229 instead of providing an explicit one, this would prevent such 230 Makefile from providing its own Kyuafile in the future during 231 NO_CLEAN builds. This has been fixed in the Makefiles but manual 232 intervention is needed to clean an objdir if you use NO_CLEAN: 233 # find /usr/obj -name Kyuafile | xargs rm -f 234 23520140303: 236 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 237 capability mode support. Please note that enabling the feature in 238 kernel is still highly recommended. 239 24020140227: 241 OpenSSH is now built with sandbox support, and will use sandbox as 242 the default privilege separation method. This requires Capsicum 243 capability mode support in kernel. 244 24520140216: 246 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 247 been deprecated and will not be part of FreeBSD 11.0 and later 248 releases. If you use this driver, please consider switching to 249 the nfe(4) driver instead. 250 25120140120: 252 10.0-RELEASE. 253 25420131216: 255 The behavior of gss_pseudo_random() for the krb5 mechanism 256 has changed, for applications requesting a longer random string 257 than produced by the underlying enctype's pseudo-random() function. 258 In particular, the random string produced from a session key of 259 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 260 be different at the 17th octet and later, after this change. 261 The counter used in the PRF+ construction is now encoded as a 262 big-endian integer in accordance with RFC 4402. 263 __FreeBSD_version is bumped to 1000701. 264 26520131108: 266 The WITHOUT_ATF build knob has been removed and its functionality 267 has been subsumed into the more generic WITHOUT_TESTS. If you were 268 using the former to disable the build of the ATF libraries, you 269 should change your settings to use the latter. 270 27120131031: 272 The default version of mtree is nmtree which is obtained from 273 NetBSD. The output is generally the same, but may vary 274 slightly. If you found you need identical output adding 275 "-F freebsd9" to the command line should do the trick. For the 276 time being, the old mtree is available as fmtree. 277 27820131014: 279 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 280 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 281 1.1.4_8 and verify bsdyml not linked in, before running "make 282 delete-old-libs": 283 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 284 or 285 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 286 28720131010: 288 The rc.d/jail script has been updated to support jail(8) 289 configuration file. The "jail_<jname>_*" rc.conf(5) variables 290 for per-jail configuration are automatically converted to 291 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 292 This is transparently backward compatible. See below about some 293 incompatibilities and rc.conf(5) manual page for more details. 294 295 These variables are now deprecated in favor of jail(8) configuration 296 file. One can use "rc.d/jail config <jname>" command to generate 297 a jail(8) configuration file in /var/run/jail.<jname>.conf without 298 running the jail(8) utility. The default pathname of the 299 configuration file is /etc/jail.conf and can be specified by 300 using $jail_conf or $jail_<jname>_conf variables. 301 302 Please note that jail_devfs_ruleset accepts an integer at 303 this moment. Please consider to rewrite the ruleset name 304 with an integer. 305 30620130930: 307 BIND has been removed from the base system. If all you need 308 is a local resolver, simply enable and start the local_unbound 309 service instead. Otherwise, several versions of BIND are 310 available in the ports tree. The dns/bind99 port is one example. 311 312 With this change, nslookup(1) and dig(1) are no longer in the base 313 system. Users should instead use host(1) and drill(1) which are 314 in the base system. Alternatively, nslookup and dig can 315 be obtained by installing the dns/bind-tools port. 316 31720130916: 318 With the addition of unbound(8), a new unbound user is now 319 required during installworld. "mergemaster -p" can be used to 320 add the user prior to installworld, as documented in the handbook. 321 32220130911: 323 OpenSSH is now built with DNSSEC support, and will by default 324 silently trust signed SSHFP records. This can be controlled with 325 the VerifyHostKeyDNS client configuration setting. DNSSEC support 326 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 327 32820130906: 329 The GNU Compiler Collection and C++ standard library (libstdc++) 330 are no longer built by default on platforms where clang is the system 331 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 332 options in src.conf. 333 33420130905: 335 The PROCDESC kernel option is now part of the GENERIC kernel 336 configuration and is required for the rwhod(8) to work. 337 If you are using custom kernel configuration, you should include 338 'options PROCDESC'. 339 34020130905: 341 The API and ABI related to the Capsicum framework was modified 342 in backward incompatible way. The userland libraries and programs 343 have to be recompiled to work with the new kernel. This includes the 344 following libraries and programs, but the whole buildworld is 345 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 346 kdump, procstat, rwho, rwhod, uniq. 347 34820130903: 349 AES-NI intrinsic support has been added to gcc. The AES-NI module 350 has been updated to use this support. A new gcc is required to build 351 the aesni module on both i386 and amd64. 352 35320130821: 354 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 355 Thus "device padlock_rng" and "device rdrand_rng" should be 356 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 357 35820130813: 359 WITH_ICONV has been split into two feature sets. WITH_ICONV now 360 enables just the iconv* functionality and is now on by default. 361 WITH_LIBICONV_COMPAT enables the libiconv api and link time 362 compatability. Set WITHOUT_ICONV to build the old way. 363 If you have been using WITH_ICONV before, you will very likely 364 need to turn on WITH_LIBICONV_COMPAT. 365 36620130806: 367 INVARIANTS option now enables DEBUG for code with OpenSolaris and 368 Illumos origin, including ZFS. If you have INVARIANTS in your 369 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 370 explicitly. 371 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 372 locks if WITNESS option was set. Because that generated a lot of 373 witness(9) reports and all of them were believed to be false 374 positives, this is no longer done. New option OPENSOLARIS_WITNESS 375 can be used to achieve the previous behavior. 376 37720130806: 378 Timer values in IPv6 data structures now use time_uptime instead 379 of time_second. Although this is not a user-visible functional 380 change, userland utilities which directly use them---ndp(8), 381 rtadvd(8), and rtsold(8) in the base system---need to be updated 382 to r253970 or later. 383 38420130802: 385 find -delete can now delete the pathnames given as arguments, 386 instead of only files found below them or if the pathname did 387 not contain any slashes. Formerly, the following error message 388 would result: 389 390 find: -delete: <path>: relative path potentially not safe 391 392 Deleting the pathnames given as arguments can be prevented 393 without error messages using -mindepth 1 or by changing 394 directory and passing "." as argument to find. This works in the 395 old as well as the new version of find. 396 39720130726: 398 Behavior of devfs rules path matching has been changed. 399 Pattern is now always matched against fully qualified devfs 400 path and slash characters must be explicitly matched by 401 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 402 subdirectories must be reviewed. 403 40420130716: 405 The default ARM ABI has changed to the ARM EABI. The old ABI is 406 incompatible with the ARM EABI and all programs and modules will 407 need to be rebuilt to work with a new kernel. 408 409 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 410 411 NOTE: Support for the old ABI will be removed in the future and 412 users are advised to upgrade. 413 41420130709: 415 pkg_install has been disconnected from the build if you really need it 416 you should add WITH_PKGTOOLS in your src.conf(5). 417 41820130709: 419 Most of network statistics structures were changed to be able 420 keep 64-bits counters. Thus all tools, that work with networking 421 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 422 42320130618: 424 Fix a bug that allowed a tracing process (e.g. gdb) to write 425 to a memory-mapped file in the traced process's address space 426 even if neither the traced process nor the tracing process had 427 write access to that file. 428 42920130615: 430 CVS has been removed from the base system. An exact copy 431 of the code is available from the devel/cvs port. 432 43320130613: 434 Some people report the following error after the switch to bmake: 435 436 make: illegal option -- J 437 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 438 ... 439 *** [buildworld] Error code 2 440 441 this likely due to an old instance of make in 442 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 443 which src/Makefile will use that blindly, if it exists, so if 444 you see the above error: 445 446 rm -rf `make -V MAKEPATH` 447 448 should resolve it. 449 45020130516: 451 Use bmake by default. 452 Whereas before one could choose to build with bmake via 453 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 454 make. The goal is to remove these knobs for 10-RELEASE. 455 456 It is worth noting that bmake (like gmake) treats the command 457 line as the unit of failure, rather than statements within the 458 command line. Thus '(cd some/where && dosomething)' is safer 459 than 'cd some/where; dosomething'. The '()' allows consistent 460 behavior in parallel build. 461 46220130429: 463 Fix a bug that allows NFS clients to issue READDIR on files. 464 46520130426: 466 The WITHOUT_IDEA option has been removed because 467 the IDEA patent expired. 468 46920130426: 470 The sysctl which controls TRIM support under ZFS has been renamed 471 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 472 enabled by default. 473 47420130425: 475 The mergemaster command now uses the default MAKEOBJDIRPREFIX 476 rather than creating it's own in the temporary directory in 477 order allow access to bootstrapped versions of tools such as 478 install and mtree. When upgrading from version of FreeBSD where 479 the install command does not support -l, you will need to 480 install a new mergemaster command if mergemaster -p is required. 481 This can be accomplished with the command (cd src/usr.sbin/mergemaster 482 && make install). 483 48420130404: 485 Legacy ATA stack, disabled and replaced by new CAM-based one since 486 FreeBSD 9.0, completely removed from the sources. Kernel modules 487 atadisk and atapi*, user-level tools atacontrol and burncd are 488 removed. Kernel option `options ATA_CAM` is now permanently enabled 489 and removed. 490 49120130319: 492 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 493 and socketpair(2). Software, in particular Kerberos, may 494 automatically detect and use these during building. The resulting 495 binaries will not work on older kernels. 496 49720130308: 498 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 499 information, see the respective 20130304 entry). 500 50120130304: 502 Recent commits to callout(9) changed the size of struct callout, 503 so the KBI is probably heavily disturbed. Also, some functions 504 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 505 by macros. Every kernel module using it won't load, so rebuild 506 is requested. 507 508 The ctl device has been re-enabled in GENERIC for i386 and amd64, 509 but does not initialize by default (because of the new CTL_DISABLE 510 option) to save memory. To re-enable it, remove the CTL_DISABLE 511 option from the kernel config file or set kern.cam.ctl.disable=0 512 in /boot/loader.conf. 513 51420130301: 515 The ctl device has been disabled in GENERIC for i386 and amd64. 516 This was done due to the extra memory being allocated at system 517 initialisation time by the ctl driver which was only used if 518 a CAM target device was created. This makes a FreeBSD system 519 unusable on 128MB or less of RAM. 520 52120130208: 522 A new compression method (lz4) has been merged to -HEAD. Please 523 refer to zpool-features(7) for more information. 524 525 Please refer to the "ZFS notes" section of this file for information 526 on upgrading boot ZFS pools. 527 52820130129: 529 A BSD-licensed patch(1) variant has been added and is installed 530 as bsdpatch, being the GNU version the default patch. 531 To inverse the logic and use the BSD-licensed one as default, 532 while having the GNU version installed as gnupatch, rebuild 533 and install world with the WITH_BSD_PATCH knob set. 534 53520130121: 536 Due to the use of the new -l option to install(1) during build 537 and install, you must take care not to directly set the INSTALL 538 make variable in your /etc/make.conf, /etc/src.conf, or on the 539 command line. If you wish to use the -C flag for all installs 540 you may be able to add INSTALL+=-C to /etc/make.conf or 541 /etc/src.conf. 542 54320130118: 544 The install(1) option -M has changed meaning and now takes an 545 argument that is a file or path to append logs to. In the 546 unlikely event that -M was the last option on the command line 547 and the command line contained at least two files and a target 548 directory the first file will have logs appended to it. The -M 549 option served little practical purpose in the last decade so its 550 use is expected to be extremely rare. 551 55220121223: 553 After switching to Clang as the default compiler some users of ZFS 554 on i386 systems started to experience stack overflow kernel panics. 555 Please consider using 'options KSTACK_PAGES=4' in such configurations. 556 55720121222: 558 GEOM_LABEL now mangles label names read from file system metadata. 559 Mangling affect labels containing spaces, non-printable characters, 560 '%' or '"'. Device names in /etc/fstab and other places may need to 561 be updated. 562 56320121217: 564 By default, only the 10 most recent kernel dumps will be saved. To 565 restore the previous behaviour (no limit on the number of kernel dumps 566 stored in the dump directory) add the following line to /etc/rc.conf: 567 568 savecore_flags="" 569 57020121201: 571 With the addition of auditdistd(8), a new auditdistd user is now 572 required during installworld. "mergemaster -p" can be used to 573 add the user prior to installworld, as documented in the handbook. 574 57520121117: 576 The sin6_scope_id member variable in struct sockaddr_in6 is now 577 filled by the kernel before passing the structure to the userland via 578 sysctl or routing socket. This means the KAME-specific embedded scope 579 id in sin6_addr.s6_addr[2] is always cleared in userland application. 580 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 581 __FreeBSD_version is bumped to 1000025. 582 58320121105: 584 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 585 This means that the world and kernel will be compiled with clang 586 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 587 and /usr/bin/cpp. To disable this behavior and revert to building 588 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 589 of current may need to bootstrap WITHOUT_CLANG first if the clang 590 build fails (its compatibility window doesn't extend to the 9 stable 591 branch point). 592 59320121102: 594 The IPFIREWALL_FORWARD kernel option has been removed. Its 595 functionality now turned on by default. 596 59720121023: 598 The ZERO_COPY_SOCKET kernel option has been removed and 599 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 600 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 601 mechanism which is not safe and may result in kernel crashes. 602 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 603 driver supports disposeable external page sized mbuf storage. 604 Proper replacements for both zero-copy mechanisms are under 605 consideration and will eventually lead to complete removal 606 of the two kernel options. 607 60820121023: 609 The IPv4 network stack has been converted to network byte 610 order. The following modules need to be recompiled together 611 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 612 pf(4), ipfw(4), ng_ipfw(4), stf(4). 613 61420121022: 615 Support for non-MPSAFE filesystems was removed from VFS. The 616 VFS_VERSION was bumped, all filesystem modules shall be 617 recompiled. 618 61920121018: 620 All the non-MPSAFE filesystems have been disconnected from 621 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 622 portalfs, smbfs, xfs. 623 62420121016: 625 The interface cloning API and ABI has changed. The following 626 modules need to be recompiled together with kernel: 627 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 628 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 629 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 630 63120121015: 632 The sdhci driver was split in two parts: sdhci (generic SD Host 633 Controller logic) and sdhci_pci (actual hardware driver). 634 No kernel config modifications are required, but if you 635 load sdhc as a module you must switch to sdhci_pci instead. 636 63720121014: 638 Import the FUSE kernel and userland support into base system. 639 64020121013: 641 The GNU sort(1) program has been removed since the BSD-licensed 642 sort(1) has been the default for quite some time and no serious 643 problems have been reported. The corresponding WITH_GNU_SORT 644 knob has also gone. 645 64620121006: 647 The pfil(9) API/ABI for AF_INET family has been changed. Packet 648 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 649 with new kernel. 650 65120121001: 652 The net80211(4) ABI has been changed to allow for improved driver 653 PS-POLL and power-save support. All wireless drivers need to be 654 recompiled to work with the new kernel. 655 65620120913: 657 The random(4) support for the VIA hardware random number 658 generator (`PADLOCK') is no longer enabled unconditionally. 659 Add the padlock_rng device in the custom kernel config if 660 needed. The GENERIC kernels on i386 and amd64 do include the 661 device, so the change only affects the custom kernel 662 configurations. 663 66420120908: 665 The pf(4) packet filter ABI has been changed. pfctl(8) and 666 snmp_pf module need to be recompiled to work with new kernel. 667 66820120828: 669 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 670 to -HEAD. Pools that have empty_bpobj in active state can not be 671 imported read-write with ZFS implementations that do not support 672 this feature. For more information read the zpool-features(5) 673 manual page. 674 67520120727: 676 The sparc64 ZFS loader has been changed to no longer try to auto- 677 detect ZFS providers based on diskN aliases but now requires these 678 to be explicitly listed in the OFW boot-device environment variable. 679 68020120712: 681 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 682 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 683 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 684 68520120712: 686 The following sysctls and tunables have been renamed for consistency 687 with other variables: 688 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 689 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 690 69120120628: 692 The sort utility has been replaced with BSD sort. For now, GNU sort 693 is also available as "gnusort" or the default can be set back to 694 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 695 installed as "bsdsort". 696 69720120611: 698 A new version of ZFS (pool version 5000) has been merged to -HEAD. 699 Starting with this version the old system of ZFS pool versioning 700 is superseded by "feature flags". This concept enables forward 701 compatibility against certain future changes in functionality of ZFS 702 pools. The first read-only compatible "feature flag" for ZFS pools 703 is named "com.delphix:async_destroy". For more information 704 read the new zpool-features(5) manual page. 705 Please refer to the "ZFS notes" section of this file for information 706 on upgrading boot ZFS pools. 707 70820120417: 709 The malloc(3) implementation embedded in libc now uses sources imported 710 as contrib/jemalloc. The most disruptive API change is to 711 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 712 delete it prior to installworld, and optionally re-create it using the 713 new format after rebooting. See malloc.conf(5) for details 714 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 715 NAMESPACE section). 716 71720120328: 718 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 719 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 720 now spelled mips. This is to aid compatibility with third-party 721 software that expects this naming scheme in uname(3). Little-endian 722 settings are unchanged. If you are updating a big-endian mips64 machine 723 from before this change, you may need to set MACHINE_ARCH=mips64 in 724 your environment before the new build system will recognize your machine. 725 72620120306: 727 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 728 platforms. 729 73020120229: 731 Now unix domain sockets behave "as expected" on nullfs(5). Previously 732 nullfs(5) did not pass through all behaviours to the underlying layer, 733 as a result if we bound to a socket on the lower layer we could connect 734 only to the lower path; if we bound to the upper layer we could connect 735 only to the upper path. The new behavior is one can connect to both the 736 lower and the upper paths regardless what layer path one binds to. 737 73820120211: 739 The getifaddrs upgrade path broken with 20111215 has been restored. 740 If you have upgraded in between 20111215 and 20120209 you need to 741 recompile libc again with your kernel. You still need to recompile 742 world to be able to configure CARP but this restriction already 743 comes from 20111215. 744 74520120114: 746 The set_rcvar() function has been removed from /etc/rc.subr. All 747 base and ports rc.d scripts have been updated, so if you have a 748 port installed with a script in /usr/local/etc/rc.d you can either 749 hand-edit the rcvar= line, or reinstall the port. 750 751 An easy way to handle the mass-update of /etc/rc.d: 752 rm /etc/rc.d/* && mergemaster -i 753 75420120109: 755 panic(9) now stops other CPUs in the SMP systems, disables interrupts 756 on the current CPU and prevents other threads from running. 757 This behavior can be reverted using the kern.stop_scheduler_on_panic 758 tunable/sysctl. 759 The new behavior can be incompatible with kern.sync_on_panic. 760 76120111215: 762 The carp(4) facility has been changed significantly. Configuration 763 of the CARP protocol via ifconfig(8) has changed, as well as format 764 of CARP events submitted to devd(8) has changed. See manual pages 765 for more information. The arpbalance feature of carp(4) is currently 766 not supported anymore. 767 768 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 769 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 770 need to be recompiled. 771 77220111122: 773 The acpi_wmi(4) status device /dev/wmistat has been renamed to 774 /dev/wmistat0. 775 77620111108: 777 The option VFS_ALLOW_NONMPSAFE option has been added in order to 778 explicitely support non-MPSAFE filesystems. 779 It is on by default for all supported platform at this present 780 time. 781 78220111101: 783 The broken amd(4) driver has been replaced with esp(4) in the amd64, 784 i386 and pc98 GENERIC kernel configuration files. 785 78620110930: 787 sysinstall has been removed 788 78920110923: 790 The stable/9 branch created in subversion. This corresponds to the 791 RELENG_9 branch in CVS. 792 79320110913: 794 This commit modifies vfs_register() so that it uses a hash 795 calculation to set vfc_typenum, which is enabled by default. 796 The first time a system is booted after this change, the 797 vfc_typenum values will change for all file systems. The 798 main effect of this is a change to the NFS server file handles 799 for file systems that use vfc_typenum in their fsid, such as ZFS. 800 It will, however, prevent vfc_typenum from changing when file 801 systems are loaded in a different order for subsequent reboots. 802 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 803 until you are ready to remount all NFS clients after a reboot. 804 80520110828: 806 Bump the shared library version numbers for libraries that 807 do not use symbol versioning, have changed the ABI compared 808 to stable/8 and which shared library version was not bumped. 809 Done as part of 9.0-RELEASE cycle. 810 81120110815: 812 During the merge of Capsicum features, the fget(9) KPI was modified. 813 This may require the rebuilding of out-of-tree device drivers -- 814 issues have been reported specifically with the nVidia device driver. 815 __FreeBSD_version is bumped to 900041. 816 817 Also, there is a period between 20110811 and 20110814 where the 818 special devices /dev/{stdin,stdout,stderr} did not work correctly. 819 Building world from a kernel during that window may not work. 820 82120110628: 822 The packet filter (pf) code has been updated to OpenBSD 4.5. 823 You need to update userland tools to be in sync with kernel. 824 This update breaks backward compatibility with earlier pfsync(4) 825 versions. Care must be taken when updating redundant firewall setups. 826 82720110608: 828 The following sysctls and tunables are retired on x86 platforms: 829 machdep.hlt_cpus 830 machdep.hlt_logical_cpus 831 The following sysctl is retired: 832 machdep.hyperthreading_allowed 833 The sysctls were supposed to provide a way to dynamically offline and 834 online selected CPUs on x86 platforms, but the implementation has not 835 been reliable especially with SCHED_ULE scheduler. 836 machdep.hyperthreading_allowed tunable is still available to ignore 837 hyperthreading CPUs at OS level. 838 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 839 where X is an APIC ID of a CPU. Be advised, though, that disabling 840 CPUs in non-uniform fashion will result in non-uniform topology and 841 may lead to sub-optimal system performance with SCHED_ULE, which is 842 a default scheduler. 843 84420110607: 845 cpumask_t type is retired and cpuset_t is used in order to describe 846 a mask of CPUs. 847 84820110531: 849 Changes to ifconfig(8) for dynamic address family detection mandate 850 that you are running a kernel of 20110525 or later. Make sure to 851 follow the update procedure to boot a new kernel before installing 852 world. 853 85420110513: 855 Support for sun4v architecture is officially dropped 856 85720110503: 858 Several KPI breaking changes have been committed to the mii(4) layer, 859 the PHY drivers and consequently some Ethernet drivers using mii(4). 860 This means that miibus.ko and the modules of the affected Ethernet 861 drivers need to be recompiled. 862 863 Note to kernel developers: Given that the OUI bit reversion problem 864 was fixed as part of these changes all mii(4) commits related to OUIs, 865 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 866 handling, no longer can be merged verbatim to stable/8 and previous 867 branches. 868 86920110430: 870 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 871 into their kernel configurations along with 'device pci'. 872 87320110427: 874 The default NFS client is now the new NFS client, so fstype "newnfs" 875 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 876 Although mounts via fstype "nfs" will usually work without userland 877 changes, it is recommended that the mount(8) and mount_nfs(8) 878 commands be rebuilt from sources and that a link to mount_nfs called 879 mount_oldnfs be created. The new client is compiled into the 880 kernel with "options NFSCL" and this is needed for diskless root 881 file systems. The GENERIC kernel configs have been changed to use 882 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 883 To use the regular/old client, you can "mount -t oldnfs ...". For 884 a diskless root file system, you must also include a line like: 885 886 vfs.root.mountfrom="oldnfs:" 887 888 in the boot/loader.conf on the root fs on the NFS server to make 889 a diskless root fs use the old client. 890 89120110424: 892 The GENERIC kernels for all architectures now default to the new 893 CAM-based ATA stack. It means that all legacy ATA drivers were 894 removed and replaced by respective CAM drivers. If you are using 895 ATA device names in /etc/fstab or other places, make sure to update 896 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 897 where 'Y's are the sequential numbers starting from zero for each type 898 in order of detection, unless configured otherwise with tunables, 899 see cam(4)). There will be symbolic links created in /dev/ to map 900 old adX devices to the respective adaY. They should provide basic 901 compatibility for file systems mounting in most cases, but they do 902 not support old user-level APIs and do not have respective providers 903 in GEOM. Consider using updated management tools with new device names. 904 905 It is possible to load devices ahci, ata, siis and mvs as modules, 906 but option ATA_CAM should remain in kernel configuration to make ata 907 module work as CAM driver supporting legacy ATA controllers. Device ata 908 still can be used in modular fashion (atacore + ...). Modules atadisk 909 and atapi* are not used and won't affect operation in ATA_CAM mode. 910 Note that to use CAM-based ATA kernel should include CAM devices 911 scbus, pass, da (or explicitly ada), cd and optionally others. All of 912 them are parts of the cam module. 913 914 ataraid(4) functionality is now supported by the RAID GEOM class. 915 To use it you can load geom_raid kernel module and use graid(8) tool 916 for management. Instead of /dev/arX device names, use /dev/raid/rX. 917 918 No kernel config options or code have been removed, so if a problem 919 arises, please report it and optionally revert to the old ATA stack. 920 In order to do it you can remove from the kernel config: 921 options ATA_CAM 922 device ahci 923 device mvs 924 device siis 925 , and instead add back: 926 device atadisk # ATA disk drives 927 device ataraid # ATA RAID drives 928 device atapicd # ATAPI CDROM drives 929 device atapifd # ATAPI floppy drives 930 device atapist # ATAPI tape drives 931 93220110423: 933 The default NFS server has been changed to the new server, which 934 was referred to as the experimental server. If you need to switch 935 back to the old NFS server, you must now put the "-o" option on 936 both the mountd and nfsd commands. This can be done using the 937 mountd_flags and nfs_server_flags rc.conf variables until an 938 update to the rc scripts is committed, which is coming soon. 939 94020110418: 941 The GNU Objective-C runtime library (libobjc), and other Objective-C 942 related components have been removed from the base system. If you 943 require an Objective-C library, please use one of the available ports. 944 94520110331: 946 ath(4) has been split into bus- and device- modules. if_ath contains 947 the HAL, the TX rate control and the network device code. if_ath_pci 948 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 949 contains the AHB glue. Users need to load both if_ath_pci and if_ath 950 in order to use ath on everything else. 951 952 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 953 need to load if_ath and if_ath_pci for ath(4) operation. 954 95520110314: 956 As part of the replacement of sysinstall, the process of building 957 release media has changed significantly. For details, please re-read 958 release(7), which has been updated to reflect the new build process. 959 96020110218: 961 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 962 is the last available version under GPLv2. It brings a number of new 963 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 964 4.1 and SSE 4.2), better support for powerpc64, a number of new 965 directives, and lots of other small improvements. See the ChangeLog 966 file in contrib/binutils for the full details. 967 96820110218: 969 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 970 compliant, and will now use half of hash for authentication. 971 This will break interoperability with all stacks (including all 972 actual FreeBSD versions) who implement 973 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 974 authentication). 975 The only workaround with such peers is to use another HMAC 976 algorithm for IPsec ("phase 2") authentication. 977 97820110207: 979 Remove the uio_yield prototype and symbol. This function has 980 been misnamed since it was introduced and should not be 981 globally exposed with this name. The equivalent functionality 982 is now available using kern_yield(curthread->td_user_pri). 983 The function remains undocumented. 984 98520110112: 986 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 987 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 988 for scalar sysctls is defined but disabled. Code that needs 989 UQUAD to pass the type checking that must compile on older 990 systems where the define is not present can check against 991 __FreeBSD_version >= 900030. 992 993 The system dialog(1) has been replaced with a new version previously 994 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 995 with the previous version, but the libdialog associated with it has 996 a largely incompatible API. As such, the original version of libdialog 997 will be kept temporarily as libodialog, until its base system consumers 998 are replaced or updated. Bump __FreeBSD_version to 900030. 999 100020110103: 1001 If you are trying to run make universe on a -stable system, and you get 1002 the following warning: 1003 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 1004 unknown. config(8) likely too old." 1005 or something similar to it, then you must upgrade your -stable system 1006 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 1007 stable/8) or build the config from the latest stable/8 branch and 1008 install it on your system. 1009 1010 Prior to this date, building a current universe on 8-stable system from 1011 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 1012 error in the first kernel build phase. A new config on those old 1013 systems will fix that problem for older versions of -current. 1014 101520101228: 1016 The TCP stack has been modified to allow Khelp modules to interact with 1017 it via helper hook points and store per-connection data in the TCP 1018 control block. Bump __FreeBSD_version to 900029. User space tools that 1019 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 1020 be recompiled. 1021 102220101114: 1023 Generic IEEE 802.3 annex 31B full duplex flow control support has been 1024 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 1025 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 1026 to take advantage of it instead of using custom implementations. This 1027 means that these drivers now no longer unconditionally advertise 1028 support for flow control but only do so if flow control is a selected 1029 media option. This was implemented in the generic support that way in 1030 order to allow flow control to be switched on and off via ifconfig(8) 1031 with the PHY specific default to typically off in order to protect 1032 from unwanted effects. Consequently, if you used flow control with 1033 one of the above mentioned drivers you now need to explicitly enable 1034 it, for example via: 1035 ifconfig bge0 media auto mediaopt flowcontrol 1036 1037 Along with the above mentioned changes generic support for setting 1038 1000baseT master mode also has been added and brgphy(4), ciphy(4), 1039 e1000phy(4) as well as ip1000phy(4) have been converted to take 1040 advantage of it. This means that these drivers now no longer take the 1041 link0 parameter for selecting master mode but the master media option 1042 has to be used instead, for example like in the following: 1043 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 1044 1045 Selection of master mode now is also available with all other PHY 1046 drivers supporting 1000baseT. 1047 104820101111: 1049 The TCP stack has received a significant update to add support for 1050 modularised congestion control and generally improve the clarity of 1051 congestion control decisions. Bump __FreeBSD_version to 900025. User 1052 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 1053 sockstat) need to be recompiled. 1054 105520101002: 1056 The man(1) utility has been replaced by a new version that no longer 1057 uses /etc/manpath.config. Please consult man.conf(5) for how to 1058 migrate local entries to the new format. 1059 106020100928: 1061 The copyright strings printed by login(1) and sshd(8) at the time of a 1062 new connection have been removed to follow other operating systems and 1063 upstream sshd. 1064 106520100915: 1066 A workaround for a fixed ld bug has been removed in kernel code, 1067 so make sure that your system ld is built from sources after 1068 revision 210245 from 2010-07-19 (r211583 if building head kernel 1069 on stable/8, r211584 for stable/7; both from 2010-08-21). 1070 A symptom of incorrect ld version is different addresses for 1071 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 1072 107320100913: 1074 The $ipv6_prefer variable in rc.conf(5) has been split into 1075 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 1076 1077 The $ip6addrctl_policy is a variable to choose a pre-defined 1078 address selection policy set by ip6addrctl(8). A value 1079 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 1080 default is "AUTO". 1081 1082 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 1083 flag (see an entry of 20090926) is set on an interface with no 1084 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 1085 security reason. If you want IPv6 link-local address on all 1086 interfaces by default, set this to "YES". 1087 1088 The old ipv6_prefer="YES" is equivalent to 1089 ipv6_activate_all_interfaces="YES" and 1090 ip6addrctl_policy="ipv6_prefer". 1091 109220100913: 1093 DTrace has grown support for userland tracing. Due to this, DTrace is 1094 now i386 and amd64 only. 1095 dtruss(1) is now installed by default on those systems and a new 1096 kernel module is needed for userland tracing: fasttrap. 1097 No changes to your kernel config file are necessary to enable 1098 userland tracing, but you might consider adding 'STRIP=' and 1099 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 1100 to have informative userland stack traces in DTrace (ustack). 1101 110220100725: 1103 The acpi_aiboost(4) driver has been removed in favor of the new 1104 aibs(4) driver. You should update your kernel configuration file. 1105 110620100722: 1107 BSD grep has been imported to the base system and it is built by 1108 default. It is completely BSD licensed, highly GNU-compatible, uses 1109 less memory than its GNU counterpart and has a small codebase. 1110 However, it is slower than its GNU counterpart, which is mostly 1111 noticeable for larger searches, for smaller ones it is measurable 1112 but not significant. The reason is complex, the most important factor 1113 is that we lack a modern and efficient regex library and GNU 1114 overcomes this by optimizing the searches internally. Future work 1115 on improving the regex performance is planned, for the meantime, 1116 users that need better performance, can build GNU grep instead by 1117 setting the WITH_GNU_GREP knob. 1118 111920100713: 1120 Due to the import of powerpc64 support, all existing powerpc kernel 1121 configuration files must be updated with a machine directive like this: 1122 machine powerpc powerpc 1123 1124 In addition, an updated config(8) is required to build powerpc kernels 1125 after this change. 1126 112720100713: 1128 A new version of ZFS (version 15) has been merged to -HEAD. 1129 This version uses a python library for the following subcommands: 1130 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 1131 For full functionality of these commands the following port must 1132 be installed: sysutils/py-zfs 1133 113420100429: 1135 'vm_page's are now hashed by physical address to an array of mutexes. 1136 Currently this is only used to serialize access to hold_count. Over 1137 time the page queue mutex will be peeled away. This changes the size 1138 of pmap on every architecture. And requires all callers of vm_page_hold 1139 and vm_page_unhold to be updated. 1140 114120100402: 1142 WITH_CTF can now be specified in src.conf (not recommended, there 1143 are some problems with static executables), make.conf (would also 1144 affect ports which do not use GNU make and do not override the 1145 compile targets) or in the kernel config (via "makeoptions 1146 WITH_CTF=yes"). 1147 When WITH_CTF was specified there before this was silently ignored, 1148 so make sure that WITH_CTF is not used in places which could lead 1149 to unwanted behavior. 1150 115120100311: 1152 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1153 to allow 32-bit compatibility on non-x86 platforms. All kernel 1154 configurations on amd64 and ia64 platforms using these options must 1155 be modified accordingly. 1156 115720100113: 1158 The utmp user accounting database has been replaced with utmpx, 1159 the user accounting interface standardized by POSIX. 1160 Unfortunately the semantics of utmp and utmpx don't match, 1161 making it practically impossible to support both interfaces. 1162 The user accounting database is used by tools like finger(1), 1163 last(1), talk(1), w(1) and ac(8). 1164 1165 All applications in the base system use utmpx. This means only 1166 local binaries (e.g. from the ports tree) may still use these 1167 utmp database files. These applications must be rebuilt to make 1168 use of utmpx. 1169 1170 After the system has been upgraded, it is safe to remove the old 1171 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1172 assuming their contents is of no importance anymore. Old wtmp 1173 databases can only be used by last(1) and ac(8) after they have 1174 been converted to the new format using wtmpcvt(1). 1175 117620100108: 1177 Introduce the kernel thread "deadlock resolver" (which can be enabled 1178 via the DEADLKRES option, see NOTES for more details) and the 1179 sleepq_type() function for sleepqueues. 1180 118120091202: 1182 The rc.firewall and rc.firewall6 were unified, and 1183 rc.firewall6 and rc.d/ip6fw were removed. 1184 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1185 variables are obsoleted. Instead, the following new rc 1186 variables are added to rc.d/ipfw: 1187 1188 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1189 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1190 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1191 1192 The meanings correspond to the relevant IPv4 variables. 1193 119420091125: 1195 8.0-RELEASE. 1196 119720091113: 1198 The default terminal emulation for syscons(4) has been changed 1199 from cons25 to xterm on all platforms except pc98. This means 1200 that the /etc/ttys file needs to be updated to ensure correct 1201 operation of applications on the console. 1202 1203 The terminal emulation style can be toggled per window by using 1204 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1205 options can be used to change the compile-time default back to 1206 cons25. 1207 1208 To prevent graphical artifacts, make sure the TERM environment 1209 variable is set to match the terminal emulation that is being 1210 performed by syscons(4). 1211 121220091109: 1213 The layout of the structure ieee80211req_scan_result has changed. 1214 Applications that require wireless scan results (e.g. ifconfig(8)) 1215 from net80211 need to be recompiled. 1216 1217 Applications such as wpa_supplicant(8) may require a full world 1218 build without using NO_CLEAN in order to get synchronized with the 1219 new structure. 1220 122120091025: 1222 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1223 There's one kernel module for each firmware. Adding "device iwnfw" 1224 to the kernel configuration file means including all three firmware 1225 images inside the kernel. If you want to include just the one for 1226 your wireless card, use the devices iwn4965fw, iwn5000fw or 1227 iwn5150fw. 1228 122920090926: 1230 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1231 into rc.d/netif. The changes are the following: 1232 1233 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1234 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1235 Note that both variables need the "inet6" keyword at the head. 1236 1237 Do not set $ipv6_network_interfaces manually if you do not 1238 understand what you are doing. It is not needed in most cases. 1239 1240 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1241 they are obsolete. 1242 1243 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1244 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1245 1246 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1247 all configured interfaces have "inet6 accept_rtadv" in the 1248 $ifconfig_IF_ipv6. These are for backward compatibility. 1249 1250 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1251 functionality of interfaces with no corresponding 1252 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1253 and the default address selection policy of ip6addrctl(8) 1254 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1255 Note that if you want to configure IPv6 functionality on the 1256 disabled interfaces after boot, first you need to clear the flag by 1257 using ifconfig(8) like: 1258 1259 ifconfig em0 inet6 -ifdisabled 1260 1261 If YES, the default address selection policy is set as 1262 IPv6-preferred. 1263 1264 The default value of $ipv6_prefer is NO. 1265 1266 4. If your system need to receive Router Advertisement messages, 1267 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1268 scripts automatically invoke rtsol(8) when the interface becomes 1269 UP. The Router Advertisement messages are used for SLAAC 1270 (State-Less Address AutoConfiguration). 1271 127220090922: 1273 802.11s D3.03 support was committed. This is incompatible with the 1274 previous code, which was based on D3.0. 1275 127620090912: 1277 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1278 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1279 control whether accepting Router Advertisement messages or not. 1280 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1281 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1282 The ifconfig(8) utility now supports these flags. 1283 128420090910: 1285 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1286 mount(8) and -a option for df(1) to see them. 1287 128820090825: 1289 The old tunable hw.bus.devctl_disable has been superseded by 1290 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1291 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1292 is 1000. 1293 129420090813: 1295 Remove the option STOP_NMI. The default action is now to use NMI only 1296 for KDB via the newly introduced function stop_cpus_hard() and 1297 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1298 129920090803: 1300 The stable/8 branch created in subversion. This corresponds to the 1301 RELENG_8 branch in CVS. 1302 130320090719: 1304 Bump the shared library version numbers for all libraries that do not 1305 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1306 __FreeBSD_version to 800105. 1307 130820090714: 1309 Due to changes in the implementation of virtual network stack support, 1310 all network-related kernel modules must be recompiled. As this change 1311 breaks the ABI, bump __FreeBSD_version to 800104. 1312 131320090713: 1314 The TOE interface to the TCP syncache has been modified to remove 1315 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1316 The cxgb driver is the only TOE consumer affected by this change, and 1317 needs to be recompiled along with the kernel. As this change breaks 1318 the ABI, bump __FreeBSD_version to 800103. 1319 132020090712: 1321 Padding has been added to struct tcpcb, sackhint and tcpstat in 1322 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1323 maintaining the ABI. However, this change breaks the ABI, so bump 1324 __FreeBSD_version to 800102. User space tools that rely on the size of 1325 any of these structs (e.g. sockstat) need to be recompiled. 1326 132720090630: 1328 The NFS_LEGACYRPC option has been removed along with the old kernel 1329 RPC implementation that this option selected. Kernel configurations 1330 may need to be adjusted. 1331 133220090629: 1333 The network interface device nodes at /dev/net/<interface> have been 1334 removed. All ioctl operations can be performed the normal way using 1335 routing sockets. The kqueue functionality can generally be replaced 1336 with routing sockets. 1337 133820090628: 1339 The documentation from the FreeBSD Documentation Project (Handbook, 1340 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1341 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1342 134320090624: 1344 The ABI of various structures related to the SYSV IPC API have been 1345 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1346 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1347 800100. 1348 134920090622: 1350 Layout of struct vnet has changed as routing related variables were 1351 moved to their own Vimage module. Modules need to be recompiled. Bump 1352 __FreeBSD_version to 800099. 1353 135420090619: 1355 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1356 respectively. As long as no more than 16 groups per process are used, 1357 no changes should be visible. When more than 16 groups are used, old 1358 binaries may fail if they call getgroups() or getgrouplist() with 1359 statically sized storage. Recompiling will work around this, but 1360 applications should be modified to use dynamically allocated storage 1361 for group arrays as POSIX.1-2008 does not cap an implementation's 1362 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1363 1364 NFS and portalfs mounts may also be affected as the list of groups is 1365 truncated to 16. Users of NFS who use more than 16 groups, should 1366 take care that negative group permissions are not used on the exported 1367 file systems as they will not be reliable unless a GSSAPI based 1368 authentication method is used. 1369 137020090616: 1371 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1372 option compiles in the support for adaptive spinning for lockmgrs 1373 which want to enable it. The lockinit() function now accepts the flag 1374 LK_ADAPTIVE in order to make the lock object subject to adaptive 1375 spinning when both held in write and read mode. 1376 137720090613: 1378 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1379 changed. User applications that use this ioctl need to be rebuilt. 1380 138120090611: 1382 The layout of struct thread has changed. Kernel and modules need to 1383 be rebuilt. 1384 138520090608: 1386 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1387 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1388 138920090602: 1390 window(1) has been removed from the base system. It can now be 1391 installed from ports. The port is called misc/window. 1392 139320090601: 1394 The way we are storing and accessing `routing table' entries has 1395 changed. Programs reading the FIB, like netstat, need to be 1396 re-compiled. 1397 139820090601: 1399 A new netisr implementation has been added for FreeBSD 8. Network 1400 file system modules, such as igmp, ipdivert, and others, should be 1401 rebuilt. 1402 Bump __FreeBSD_version to 800096. 1403 140420090530: 1405 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1406 more valid. 1407 140820090530: 1409 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1410 Bump __FreeBSD_version to 800094. 1411 141220090529: 1413 Add mnt_xflag field to 'struct mount'. File system modules need to be 1414 rebuilt. 1415 Bump __FreeBSD_version to 800093. 1416 141720090528: 1418 The compiling option ADAPTIVE_SX has been retired while it has been 1419 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1420 The KPI for sx_init_flags() changes as accepting flags: 1421 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1422 been introduced in order to handle the reversed logic. 1423 Bump __FreeBSD_version to 800092. 1424 142520090527: 1426 Add support for hierarchical jails. Remove global securelevel. 1427 Bump __FreeBSD_version to 800091. 1428 142920090523: 1430 The layout of struct vnet_net has changed, therefore modules 1431 need to be rebuilt. 1432 Bump __FreeBSD_version to 800090. 1433 143420090523: 1435 The newly imported zic(8) produces a new format in the output. Please 1436 run tzsetup(8) to install the newly created data to /etc/localtime. 1437 143820090520: 1439 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1440 hw.usb.* and is now consistent again with previous releases. 1441 144220090520: 1443 802.11 monitor mode support was revised and driver api's were changed. 1444 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1445 of DLT_IEEE802_11. No user-visible data structures were changed but 1446 applications that use DLT_IEEE802_11 may require changes. 1447 Bump __FreeBSD_version to 800088. 1448 144920090430: 1450 The layout of the following structs has changed: sysctl_oid, 1451 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1452 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1453 panics may be experienced. World rebuild is required for 1454 correctly checking networking state from userland. 1455 Bump __FreeBSD_version to 800085. 1456 145720090429: 1458 MLDv2 and Source-Specific Multicast (SSM) have been merged 1459 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1460 The implementation of SSM within FreeBSD's IPv6 stack closely 1461 follows the IPv4 implementation. 1462 1463 For kernel developers: 1464 1465 * The most important changes are that the ip6_output() and 1466 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1467 and this lock has been downgraded to a non-recursive mutex. 1468 1469 * As with the changes to the IPv4 stack to support SSM, filtering 1470 of inbound multicast traffic must now be performed by transport 1471 protocols within the IPv6 stack. This does not apply to TCP and 1472 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1473 1474 * The KPIs used by IPv6 multicast are similar to those used by 1475 the IPv4 stack, with the following differences: 1476 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1477 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1478 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1479 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1480 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1481 for MLDv1 have an additional 'timer' argument which is used to 1482 jitter the initial membership report for the solicited-node 1483 multicast membership on-link. 1484 * This is not strictly needed for MLDv2, which already jitters 1485 its report transmissions. However, the 'timer' argument is 1486 preserved in case MLDv1 is active on the interface. 1487 1488 * The KAME linked-list based IPv6 membership implementation has 1489 been refactored to use a vector similar to that used by the IPv4 1490 stack. 1491 Code which maintains a list of its own multicast memberships 1492 internally, e.g. carp, has been updated to reflect the new 1493 semantics. 1494 1495 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1496 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1497 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1498 implementation constraint which needs to be addressed in HEAD. 1499 1500 For application developers: 1501 1502 * The changes are broadly similar to those made for the IPv4 1503 stack. 1504 1505 * The use of IPv4 and IPv6 multicast socket options on the same 1506 socket, using mapped addresses, HAS NOT been tested or supported. 1507 1508 * There are a number of issues with the implementation of various 1509 IPv6 multicast APIs which need to be resolved in the API surface 1510 before the implementation is fully compatible with KAME userland 1511 use, and these are mostly to do with interface index treatment. 1512 1513 * The literature available discusses the use of either the delta / ASM 1514 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1515 using setsourcefilter(3)/getsourcefilter(3). For more information 1516 please refer to RFC 3768, 'Socket Interface Extensions for 1517 Multicast Source Filters'. 1518 1519 * Applications which use the published RFC 3678 APIs should be fine. 1520 1521 For systems administrators: 1522 1523 * The mtest(8) utility has been refactored to support IPv6, in 1524 addition to IPv4. Interface addresses are no longer accepted 1525 as arguments, their names must be used instead. The utility 1526 will map the interface name to its first IPv4 address as 1527 returned by getifaddrs(3). 1528 1529 * The ifmcstat(8) utility has also been updated to print the MLDv2 1530 endpoint state and source filter lists via sysctl(3). 1531 1532 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1533 loopback of IPv6 multicast datagrams by default; it defaults to 1 1534 to preserve the existing behaviour. Disabling multicast loopback is 1535 recommended for optimal system performance. 1536 1537 * The IPv6 MROUTING code has been changed to examine this sysctl 1538 instead of attempting to perform a group lookup before looping 1539 back forwarded datagrams. 1540 1541 Bump __FreeBSD_version to 800084. 1542 154320090422: 1544 Implement low-level Bluetooth HCI API. 1545 Bump __FreeBSD_version to 800083. 1546 154720090419: 1548 The layout of struct malloc_type, used by modules to register new 1549 memory allocation types, has changed. Most modules will need to 1550 be rebuilt or panics may be experienced. 1551 Bump __FreeBSD_version to 800081. 1552 155320090415: 1554 Anticipate overflowing inp_flags - add inp_flags2. 1555 This changes most offsets in inpcb, so checking v4 connection 1556 state will require a world rebuild. 1557 Bump __FreeBSD_version to 800080. 1558 155920090415: 1560 Add an llentry to struct route and struct route_in6. Modules 1561 embedding a struct route will need to be recompiled. 1562 Bump __FreeBSD_version to 800079. 1563 156420090414: 1565 The size of rt_metrics_lite and by extension rtentry has changed. 1566 Networking administration apps will need to be recompiled. 1567 The route command now supports show as an alias for get, weighting 1568 of routes, sticky and nostick flags to alter the behavior of stateful 1569 load balancing. 1570 Bump __FreeBSD_version to 800078. 1571 157220090408: 1573 Do not use Giant for kbdmux(4) locking. This is wrong and 1574 apparently causing more problems than it solves. This will 1575 re-open the issue where interrupt handlers may race with 1576 kbdmux(4) in polling mode. Typical symptoms include (but 1577 not limited to) duplicated and/or missing characters when 1578 low level console functions (such as gets) are used while 1579 interrupts are enabled (for example geli password prompt, 1580 mountroot prompt etc.). Disabling kbdmux(4) may help. 1581 158220090407: 1583 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1584 kernel modules referencing any of the above need to be recompiled. 1585 Bump __FreeBSD_version to 800075. 1586 158720090320: 1588 GEOM_PART has become the default partition slicer for storage devices, 1589 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1590 introduces some changes: 1591 1592 MSDOS/EBR: the devices created from MSDOS extended partition entries 1593 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1594 to devices with offset-based names. fstabs may need to be modified. 1595 1596 BSD: the "geometry does not match label" warning is harmless in most 1597 cases but it points to problems in file system misalignment with 1598 disk geometry. The "c" partition is now implicit, covers the whole 1599 top-level drive and cannot be (mis)used by users. 1600 1601 General: Kernel dumps are now not allowed to be written to devices 1602 whose partition types indicate they are meant to be used for file 1603 systems (or, in case of MSDOS partitions, as something else than 1604 the "386BSD" type). 1605 1606 Most of these changes date approximately from 200812. 1607 160820090319: 1609 The uscanner(4) driver has been removed from the kernel. This follows 1610 Linux removing theirs in 2.6 and making libusb the default interface 1611 (supported by sane). 1612 161320090319: 1614 The multicast forwarding code has been cleaned up. netstat(1) 1615 only relies on KVM now for printing bandwidth upcall meters. 1616 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1617 ip6_mroute_mod respectively. The config(5) options for statically 1618 compiling this code remain the same, i.e. 'options MROUTING'. 1619 162020090315: 1621 Support for the IFF_NEEDSGIANT network interface flag has been 1622 removed, which means that non-MPSAFE network device drivers are no 1623 longer supported. In particular, if_ar, if_sr, and network device 1624 drivers from the old (legacy) USB stack can no longer be built or 1625 used. 1626 162720090313: 1628 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1629 a bunch of new language catalog files have also been added. 1630 This means that some common libc messages are now localized and 1631 they depend on the LC_MESSAGES environmental variable. 1632 163320090313: 1634 The k8temp(4) driver has been renamed to amdtemp(4) since 1635 support for Family 10 and Family 11 CPU families was added. 1636 163720090309: 1638 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1639 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1640 1641 For kernel developers, the most important changes are that the 1642 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1643 and this lock has been downgraded to a non-recursive mutex. 1644 1645 Transport protocols (UDP, Raw IP) are now responsible for filtering 1646 inbound multicast traffic according to group membership and source 1647 filters. The imo_multicast_filter() KPI exists for this purpose. 1648 Transports which do not use multicast (SCTP, TCP) already reject 1649 multicast by default. Forwarding and receive performance may improve 1650 as a mutex acquisition is no longer needed in the ip_input() 1651 low-level input path. in_addmulti() and in_delmulti() are shimmed 1652 to new KPIs which exist to support SSM in-kernel. 1653 1654 For application developers, it is recommended that loopback of 1655 multicast datagrams be disabled for best performance, as this 1656 will still cause the lock to be taken for each looped-back 1657 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1658 be tuned to 0 to disable loopback by default; it defaults to 1 1659 to preserve the existing behaviour. 1660 1661 For systems administrators, to obtain best performance with 1662 multicast reception and multiple groups, it is always recommended 1663 that a card with a suitably precise hash filter is used. Hash 1664 collisions will still result in the lock being taken within the 1665 transport protocol input path to check group membership. 1666 1667 If deploying FreeBSD in an environment with IGMP snooping switches, 1668 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1669 enabled; this forces 224.0.0.0/24 group membership to be announced 1670 via IGMP. 1671 1672 The size of 'struct igmpstat' has changed; netstat needs to be 1673 recompiled to reflect this. 1674 Bump __FreeBSD_version to 800070. 1675 167620090309: 1677 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1678 updated to use it. This requires a buildworld/installworld in order to 1679 update the library and dependencies (usbconfig, etc). Its advisable to 1680 rebuild all ports which uses libusb. More specific directions are given 1681 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1682 libusb are no longer required and can be removed. 1683 168420090302: 1685 A workaround is committed to allow the creation of System V shared 1686 memory segment of size > 2 GB on the 64-bit architectures. 1687 Due to a limitation of the existing ABI, the shm_segsz member 1688 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1689 wrong for large segments. Note that limits must be explicitly 1690 raised to allow such segments to be created. 1691 169220090301: 1693 The layout of struct ifnet has changed, requiring a rebuild of all 1694 network device driver modules. 1695 169620090227: 1697 The /dev handling for the new USB stack has changed, a 1698 buildworld/installworld is required for libusb20. 1699 170020090223: 1701 The new USB2 stack has now been permanently moved in and all kernel and 1702 module names reverted to their previous values (eg, usb, ehci, ohci, 1703 ums, ...). The old usb stack can be compiled in by prefixing the name 1704 with the letter 'o', the old usb modules have been removed. 1705 Updating entry 20090216 for xorg and 20090215 for libmap may still 1706 apply. 1707 170820090217: 1709 The rc.conf(5) option if_up_delay has been renamed to 1710 defaultroute_delay to better reflect its purpose. If you have 1711 customized this setting in /etc/rc.conf you need to update it to 1712 use the new name. 1713 171420090216: 1715 xorg 7.4 wants to configure its input devices via hald which does not 1716 yet work with USB2. If the keyboard/mouse does not work in xorg then 1717 add 1718 Option "AllowEmptyInput" "off" 1719 to your ServerLayout section. This will cause X to use the configured 1720 kbd and mouse sections from your xorg.conf. 1721 172220090215: 1723 The GENERIC kernels for all architectures now default to the new USB2 1724 stack. No kernel config options or code have been removed so if a 1725 problem arises please report it and optionally revert to the old USB 1726 stack. If you are loading USB kernel modules or have a custom kernel 1727 that includes GENERIC then ensure that usb names are also changed over, 1728 eg uftdi -> usb2_serial_ftdi. 1729 1730 Older programs linked against the ports libusb 0.1 need to be 1731 redirected to the new stack's libusb20. /etc/libmap.conf can 1732 be used for this: 1733 # Map old usb library to new one for usb2 stack 1734 libusb-0.1.so.8 libusb20.so.1 1735 173620090209: 1737 All USB ethernet devices now attach as interfaces under the name ueN 1738 (eg. ue0). This is to provide a predictable name as vendors often 1739 change usb chipsets in a product without notice. 1740 174120090203: 1742 The ichsmb(4) driver has been changed to require SMBus slave 1743 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1744 All of the other SMBus controller drivers require left-justified 1745 slave addresses, so this change makes all the drivers provide the 1746 same interface. 1747 174820090201: 1749 INET6 statistics (struct ip6stat) was updated. 1750 netstat(1) needs to be recompiled. 1751 175220090119: 1753 NTFS has been removed from GENERIC kernel on amd64 to match 1754 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1755 will load ntfs.ko module automatically when NTFS support is 1756 actually needed, unless ntfs.ko is not installed or security 1757 level prohibits loading kernel modules. If either is the case, 1758 "options NTFS" has to be added into kernel config. 1759 176020090115: 1761 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1762 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1763 800061. User space tools that rely on the size of struct tcpcb in 1764 tcp_var.h (e.g. sockstat) need to be recompiled. 1765 176620081225: 1767 ng_tty(4) module updated to match the new TTY subsystem. 1768 Due to API change, user-level applications must be updated. 1769 New API support added to mpd5 CVS and expected to be present 1770 in next mpd5.3 release. 1771 177220081219: 1773 With __FreeBSD_version 800060 the makefs tool is part of 1774 the base system (it was a port). 1775 177620081216: 1777 The afdata and ifnet locks have been changed from mutexes to 1778 rwlocks, network modules will need to be re-compiled. 1779 178020081214: 1781 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1782 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1783 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1784 architecture and 40 bytes on 64-bit architecture. The userland 1785 applications "arp" and "ndp" have been updated accordingly. 1786 The output from "netstat -r" shows only routing entries and 1787 none of the L2 information. 1788 178920081130: 1790 __FreeBSD_version 800057 marks the switchover from the 1791 binary ath hal to source code. Users must add the line: 1792 1793 options AH_SUPPORT_AR5416 1794 1795 to their kernel config files when specifying: 1796 1797 device ath_hal 1798 1799 The ath_hal module no longer exists; the code is now compiled 1800 together with the driver in the ath module. It is now 1801 possible to tailor chip support (i.e. reduce the set of chips 1802 and thereby the code size); consult ath_hal(4) for details. 1803 180420081121: 1805 __FreeBSD_version 800054 adds memory barriers to 1806 <machine/atomic.h>, new interfaces to ifnet to facilitate 1807 multiple hardware transmit queues for cards that support 1808 them, and a lock-less ring-buffer implementation to 1809 enable drivers to more efficiently manage queueing of 1810 packets. 1811 181220081117: 1813 A new version of ZFS (version 13) has been merged to -HEAD. 1814 This version has zpool attribute "listsnapshots" off by 1815 default, which means "zfs list" does not show snapshots, 1816 and is the same as Solaris behavior. 1817 181820081028: 1819 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1820 182120081009: 1822 The uhci, ohci, ehci and slhci USB Host controller drivers have 1823 been put into separate modules. If you load the usb module 1824 separately through loader.conf you will need to load the 1825 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1826 controller add the following to loader.conf: 1827 1828 uhci_load="YES" 1829 ehci_load="YES" 1830 183120081009: 1832 The ABI used by the PMC toolset has changed. Please keep 1833 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1834 sync. 1835 183620081009: 1837 atapci kernel module now includes only generic PCI ATA 1838 driver. AHCI driver moved to ataahci kernel module. 1839 All vendor-specific code moved into separate kernel modules: 1840 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1841 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1842 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1843 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1844 184520080820: 1846 The TTY subsystem of the kernel has been replaced by a new 1847 implementation, which provides better scalability and an 1848 improved driver model. Most common drivers have been migrated to 1849 the new TTY subsystem, while others have not. The following 1850 drivers have not yet been ported to the new TTY layer: 1851 1852 PCI/ISA: 1853 cy, digi, rc, rp, sio 1854 1855 USB: 1856 ubser, ucycom 1857 1858 Line disciplines: 1859 ng_h4, ng_tty, ppp, sl, snp 1860 1861 Adding these drivers to your kernel configuration file shall 1862 cause compilation to fail. 1863 186420080818: 1865 ntpd has been upgraded to 4.2.4p5. 1866 186720080801: 1868 OpenSSH has been upgraded to 5.1p1. 1869 1870 For many years, FreeBSD's version of OpenSSH preferred DSA 1871 over RSA for host and user authentication keys. With this 1872 upgrade, we've switched to the vendor's default of RSA over 1873 DSA. This may cause upgraded clients to warn about unknown 1874 host keys even for previously known hosts. Users should 1875 follow the usual procedure for verifying host keys before 1876 accepting the RSA key. 1877 1878 This can be circumvented by setting the "HostKeyAlgorithms" 1879 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1880 command line. 1881 1882 Please note that the sequence of keys offered for 1883 authentication has been changed as well. You may want to 1884 specify IdentityFile in a different order to revert this 1885 behavior. 1886 188720080713: 1888 The sio(4) driver has been removed from the i386 and amd64 1889 kernel configuration files. This means uart(4) is now the 1890 default serial port driver on those platforms as well. 1891 1892 To prevent collisions with the sio(4) driver, the uart(4) driver 1893 uses different names for its device nodes. This means the 1894 onboard serial port will now most likely be called "ttyu0" 1895 instead of "ttyd0". You may need to reconfigure applications to 1896 use the new device names. 1897 1898 When using the serial port as a boot console, be sure to update 1899 /boot/device.hints and /etc/ttys before booting the new kernel. 1900 If you forget to do so, you can still manually specify the hints 1901 at the loader prompt: 1902 1903 set hint.uart.0.at="isa" 1904 set hint.uart.0.port="0x3F8" 1905 set hint.uart.0.flags="0x10" 1906 set hint.uart.0.irq="4" 1907 boot -s 1908 190920080609: 1910 The gpt(8) utility has been removed. Use gpart(8) to partition 1911 disks instead. 1912 191320080603: 1914 The version that Linuxulator emulates was changed from 2.4.2 1915 to 2.6.16. If you experience any problems with Linux binaries 1916 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1917 if it fixes the problem contact emulation mailing list. 1918 191920080525: 1920 ISDN4BSD (I4B) was removed from the src tree. You may need to 1921 update a your kernel configuration and remove relevant entries. 1922 192320080509: 1924 I have checked in code to support multiple routing tables. 1925 See the man pages setfib(1) and setfib(2). 1926 This is a hopefully backwards compatible version, 1927 but to make use of it you need to compile your kernel 1928 with options ROUTETABLES=2 (or more up to 16). 1929 193020080420: 1931 The 802.11 wireless support was redone to enable multi-bss 1932 operation on devices that are capable. The underlying device 1933 is no longer used directly but instead wlanX devices are 1934 cloned with ifconfig. This requires changes to rc.conf files. 1935 For example, change: 1936 ifconfig_ath0="WPA DHCP" 1937 to 1938 wlans_ath0=wlan0 1939 ifconfig_wlan0="WPA DHCP" 1940 see rc.conf(5) for more details. In addition, mergemaster of 1941 /etc/rc.d is highly recommended. Simultaneous update of userland 1942 and kernel wouldn't hurt either. 1943 1944 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1945 modules were merged into the base wlan module. All references 1946 to these modules (e.g. in kernel config files) must be removed. 1947 194820080408: 1949 psm(4) has gained write(2) support in native operation level. 1950 Arbitrary commands can be written to /dev/psm%d and status can 1951 be read back from it. Therefore, an application is responsible 1952 for status validation and error recovery. It is a no-op in 1953 other operation levels. 1954 195520080312: 1956 Support for KSE threading has been removed from the kernel. To 1957 run legacy applications linked against KSE libmap.conf may 1958 be used. The following libmap.conf may be used to ensure 1959 compatibility with any prior release: 1960 1961 libpthread.so.1 libthr.so.1 1962 libpthread.so.2 libthr.so.2 1963 libkse.so.3 libthr.so.3 1964 196520080301: 1966 The layout of struct vmspace has changed. This affects libkvm 1967 and any executables that link against libkvm and use the 1968 kvm_getprocs() function. In particular, but not exclusively, 1969 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1970 The effects are minimal, but it's advisable to upgrade world 1971 nonetheless. 1972 197320080229: 1974 The latest em driver no longer has support in it for the 1975 82575 adapter, this is now moved to the igb driver. The 1976 split was done to make new features that are incompatible 1977 with older hardware easier to do. 1978 197920080220: 1980 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1981 likewise the kernel option is now GEOM_LINUX_LVM. 1982 198320080211: 1984 The default NFS mount mode has changed from UDP to TCP for 1985 increased reliability. If you rely on (insecurely) NFS 1986 mounting across a firewall you may need to update your 1987 firewall rules. 1988 198920080208: 1990 Belatedly note the addition of m_collapse for compacting 1991 mbuf chains. 1992 199320080126: 1994 The fts(3) structures have been changed to use adequate 1995 integer types for their members and so to be able to cope 1996 with huge file trees. The old fts(3) ABI is preserved 1997 through symbol versioning in libc, so third-party binaries 1998 using fts(3) should still work, although they will not take 1999 advantage of the extended types. At the same time, some 2000 third-party software might fail to build after this change 2001 due to unportable assumptions made in its source code about 2002 fts(3) structure members. Such software should be fixed 2003 by its vendor or, in the worst case, in the ports tree. 2004 FreeBSD_version 800015 marks this change for the unlikely 2005 case that a portable fix is impossible. 2006 200720080123: 2008 To upgrade to -current after this date, you must be running 2009 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 2010 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 2011 201220071128: 2013 The ADAPTIVE_GIANT kernel option has been retired because its 2014 functionality is the default now. 2015 201620071118: 2017 The AT keyboard emulation of sunkbd(4) has been turned on 2018 by default. In order to make the special symbols of the Sun 2019 keyboards driven by sunkbd(4) work under X these now have 2020 to be configured the same way as Sun USB keyboards driven 2021 by ukbd(4) (which also does AT keyboard emulation), f.e.: 2022 2023 Option "XkbLayout" "us" 2024 Option "XkbRules" "xorg" 2025 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 2026 202720071024: 2028 It has been decided that it is desirable to provide ABI 2029 backwards compatibility to the FreeBSD 4/5/6 versions of the 2030 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 2031 broken with the introduction of PCI domain support (see the 2032 20070930 entry). Unfortunately, this required the ABI of 2033 PCIOCGETCONF to be broken again in order to be able to 2034 provide backwards compatibility to the old version of that 2035 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 2036 again. As for prominent ports this affects neither pciutils 2037 nor xorg-server this time, the hal port needs to be rebuilt 2038 however. 2039 204020071020: 2041 The misnamed kthread_create() and friends have been renamed 2042 to kproc_create() etc. Many of the callers already 2043 used kproc_start().. 2044 I will return kthread_create() and friends in a while 2045 with implementations that actually create threads, not procs. 2046 Renaming corresponds with version 800002. 2047 204820071010: 2049 RELENG_7 branched. 2050 2051COMMON ITEMS: 2052 2053 General Notes 2054 ------------- 2055 Avoid using make -j when upgrading. While generally safe, there are 2056 sometimes problems using -j to upgrade. If your upgrade fails with 2057 -j, please try again without -j. From time to time in the past there 2058 have been problems using -j with buildworld and/or installworld. This 2059 is especially true when upgrading between "distant" versions (eg one 2060 that cross a major release boundary or several minor releases, or when 2061 several months have passed on the -current branch). 2062 2063 Sometimes, obscure build problems are the result of environment 2064 poisoning. This can happen because the make utility reads its 2065 environment when searching for values for global variables. To run 2066 your build attempts in an "environmental clean room", prefix all make 2067 commands with 'env -i '. See the env(1) manual page for more details. 2068 2069 When upgrading from one major version to another it is generally best 2070 to upgrade to the latest code in the currently installed branch first, 2071 then do an upgrade to the new branch. This is the best-tested upgrade 2072 path, and has the highest probability of being successful. Please try 2073 this approach before reporting problems with a major version upgrade. 2074 2075 When upgrading a live system, having a root shell around before 2076 installing anything can help undo problems. Not having a root shell 2077 around can lead to problems if pam has changed too much from your 2078 starting point to allow continued authentication after the upgrade. 2079 2080 ZFS notes 2081 --------- 2082 When upgrading the boot ZFS pool to a new version, always follow 2083 these two steps: 2084 2085 1.) recompile and reinstall the ZFS boot loader and boot block 2086 (this is part of "make buildworld" and "make installworld") 2087 2088 2.) update the ZFS boot block on your boot drive 2089 2090 The following example updates the ZFS boot block on the first 2091 partition (freebsd-boot) of a GPT partitioned drive ad0: 2092 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 2093 2094 Non-boot pools do not need these updates. 2095 2096 To build a kernel 2097 ----------------- 2098 If you are updating from a prior version of FreeBSD (even one just 2099 a few days old), you should follow this procedure. It is the most 2100 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 2101 2102 make kernel-toolchain 2103 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 2104 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 2105 2106 To test a kernel once 2107 --------------------- 2108 If you just want to boot a kernel once (because you are not sure 2109 if it works, or if you want to boot a known bad kernel to provide 2110 debugging information) run 2111 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 2112 nextboot -k testkernel 2113 2114 To just build a kernel when you know that it won't mess you up 2115 -------------------------------------------------------------- 2116 This assumes you are already running a CURRENT system. Replace 2117 ${arch} with the architecture of your machine (e.g. "i386", 2118 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 2119 2120 cd src/sys/${arch}/conf 2121 config KERNEL_NAME_HERE 2122 cd ../compile/KERNEL_NAME_HERE 2123 make depend 2124 make 2125 make install 2126 2127 If this fails, go to the "To build a kernel" section. 2128 2129 To rebuild everything and install it on the current system. 2130 ----------------------------------------------------------- 2131 # Note: sometimes if you are running current you gotta do more than 2132 # is listed here if you are upgrading from a really old current. 2133 2134 <make sure you have good level 0 dumps> 2135 make buildworld 2136 make kernel KERNCONF=YOUR_KERNEL_HERE 2137 [1] 2138 <reboot in single user> [3] 2139 mergemaster -p [5] 2140 make installworld 2141 mergemaster -i [4] 2142 make delete-old [6] 2143 <reboot> 2144 2145 To cross-install current onto a separate partition 2146 -------------------------------------------------- 2147 # In this approach we use a separate partition to hold 2148 # current's root, 'usr', and 'var' directories. A partition 2149 # holding "/", "/usr" and "/var" should be about 2GB in 2150 # size. 2151 2152 <make sure you have good level 0 dumps> 2153 <boot into -stable> 2154 make buildworld 2155 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2156 <maybe newfs current's root partition> 2157 <mount current's root partition on directory ${CURRENT_ROOT}> 2158 make installworld DESTDIR=${CURRENT_ROOT} 2159 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2160 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2161 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2162 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2163 <reboot into current> 2164 <do a "native" rebuild/install as described in the previous section> 2165 <maybe install compatibility libraries from ports/misc/compat*> 2166 <reboot> 2167 2168 2169 To upgrade in-place from stable to current 2170 ---------------------------------------------- 2171 <make sure you have good level 0 dumps> 2172 make buildworld [9] 2173 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2174 [1] 2175 <reboot in single user> [3] 2176 mergemaster -p [5] 2177 make installworld 2178 mergemaster -i [4] 2179 make delete-old [6] 2180 <reboot> 2181 2182 Make sure that you've read the UPDATING file to understand the 2183 tweaks to various things you need. At this point in the life 2184 cycle of current, things change often and you are on your own 2185 to cope. The defaults can also change, so please read ALL of 2186 the UPDATING entries. 2187 2188 Also, if you are tracking -current, you must be subscribed to 2189 freebsd-current@freebsd.org. Make sure that before you update 2190 your sources that you have read and understood all the recent 2191 messages there. If in doubt, please track -stable which has 2192 much fewer pitfalls. 2193 2194 [1] If you have third party modules, such as vmware, you 2195 should disable them at this point so they don't crash your 2196 system on reboot. 2197 2198 [3] From the bootblocks, boot -s, and then do 2199 fsck -p 2200 mount -u / 2201 mount -a 2202 cd src 2203 adjkerntz -i # if CMOS is wall time 2204 Also, when doing a major release upgrade, it is required that 2205 you boot into single user mode to do the installworld. 2206 2207 [4] Note: This step is non-optional. Failure to do this step 2208 can result in a significant reduction in the functionality of the 2209 system. Attempting to do it by hand is not recommended and those 2210 that pursue this avenue should read this file carefully, as well 2211 as the archives of freebsd-current and freebsd-hackers mailing lists 2212 for potential gotchas. The -U option is also useful to consider. 2213 See mergemaster(8) for more information. 2214 2215 [5] Usually this step is a noop. However, from time to time 2216 you may need to do this if you get unknown user in the following 2217 step. It never hurts to do it all the time. You may need to 2218 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2219 install) after the buildworld before this step if you last updated 2220 from current before 20130425 or from -stable before 20130430. 2221 2222 [6] This only deletes old files and directories. Old libraries 2223 can be deleted by "make delete-old-libs", but you have to make 2224 sure that no program is using those libraries anymore. 2225 2226 [8] In order to have a kernel that can run the 4.x binaries needed to 2227 do an installworld, you must include the COMPAT_FREEBSD4 option in 2228 your kernel. Failure to do so may leave you with a system that is 2229 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2230 required to run the 5.x binaries on more recent kernels. And so on 2231 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2232 2233 Make sure that you merge any new devices from GENERIC since the 2234 last time you updated your kernel config file. 2235 2236 [9] When checking out sources, you must include the -P flag to have 2237 cvs prune empty directories. 2238 2239 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2240 "?=" instead of the "=" assignment operator, so that buildworld can 2241 override the CPUTYPE if it needs to. 2242 2243 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2244 not on the command line, or in /etc/make.conf. buildworld will 2245 warn if it is improperly defined. 2246FORMAT: 2247 2248This file contains a list, in reverse chronological order, of major 2249breakages in tracking -current. It is not guaranteed to be a complete 2250list of such breakages, and only contains entries since October 10, 2007. 2251If you need to see UPDATING entries from before that date, you will need 2252to fetch an UPDATING file from an older FreeBSD release. 2253 2254Copyright information: 2255 2256Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2257 2258Redistribution, publication, translation and use, with or without 2259modification, in full or in part, in any form or format of this 2260document are permitted without further permission from the author. 2261 2262THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2263IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2264WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2265DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2266INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2267(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2268SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2269HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2270STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2271IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2272POSSIBILITY OF SUCH DAMAGE. 2273 2274Contact Warner Losh if you have any questions about your use of 2275this document. 2276 2277$FreeBSD: stable/10/UPDATING 315847 2017-03-23 08:19:51Z avg $ 2278