UPDATING revision 335670
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 https://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 1920180504: 20 The tz database (tzdb) has been updated to 2018e. This version more 21 correctly models time stamps in time zones with negative DST such as 22 Europe/Dublin (from 1971 on), Europe/Prague (1946/7), and 23 Africa/Windhoek (1994/2017). This does not affect the UT offsets, only 24 time zone abbreviations and the tm_isdst flag. 25 2620171003: 27 When building multiple kernels using KERNCONF, non-existent KERNCONF 28 files will produce an error and buildkernel will fail. Previously 29 missing KERNCONF files silently failed giving no indication as to 30 why, only to subsequently discover during installkernel that the 31 desired kernel was never built in the first place. 32 3320170824: 34 Since the switch to GPT disk labels, fsck for UFS/FFS has been 35 unable to automatically find alternate superblocks. As of r322860, 36 the information needed to find alternate superblocks has been 37 moved to the end of the area reserved for the boot block. 38 Filesystems created with a newfs of this vintage or later 39 will create the recovery information. If you have a filesystem 40 created prior to this change and wish to have a recovery block 41 created for your filesystem, you can do so by running fsck in 42 forground mode (i.e., do not use the -p or -y options). As it 43 starts, fsck will ask ``SAVE DATA TO FIND ALTERNATE SUPERBLOCKS'' 44 to which you should answer yes. 45 4620170511: 47 The mmcsd.ko module now additionally depends on geom_flashmap.ko. 48 Also, mmc.ko and mmcsd.ko need to be a matching pair built from the 49 same source (previously, the dependency of mmcsd.ko on mmc.ko was 50 missing, but mmcsd.ko now will refuse to load if it is incompatible 51 with mmc.ko). 52 5320170413: 54 As of r316810 for ipfilter, keep frags is no longer assumed when 55 keep state is specified in a rule. r316810 aligns ipfilter with 56 documentation in man pages separating keep frags from keep state. 57 This allows keep state to specified without forcing keep frags 58 and allows keep frags to be specified independently of keep state. 59 To maintain previous behaviour, also specify keep frags with 60 keep state (as documented in ipf.conf.5). 61 6220170323: 63 The code that provides support for ZFS .zfs/ directory functionality 64 has been reimplemented. It's not possible now to create a snapshot 65 by mkdir under .zfs/snapshot/. That should be the only user visible 66 change. 67 6820160124: 69 The NONE and HPN patches has been removed from OpenSSH. They are 70 still available in the security/openssh-portable port. 71 7220151214: 73 r292223 changed the internal interface between the nfsd.ko and 74 nfscommon.ko modules. As such, they must both be upgraded to-gether. 75 __FreeBSD_version has been bumped because of this. 76 7720151113: 78 Qlogic 24xx/25xx firmware images were updated from 5.5.0 to 7.3.0. 79 Kernel modules isp_2400_multi and isp_2500_multi were removed and 80 should be replaced with isp_2400 and isp_2500 modules respectively. 81 8220150806: 83 The menu.rc and loader.rc files will now be replaced during 84 upgrades. Please migrate local changes to menu.rc.local and 85 loader.rc.local instead. 86 8720151026: 88 NTP has been upgraded to 4.2.8p4. 89 9020151025: 91 ALLOW_DEPRECATED_ATF_TOOLS/ATFFILE support has been removed from 92 atf.test.mk (included from bsd.test.mk). Please upgrade devel/atf 93 and devel/kyua to version 0.20+ and adjust any calling code to work 94 with Kyuafile and kyua. 95 9620150823: 97 The polarity of Pulse Per Second (PPS) capture events with the 98 uart(4) driver has been corrected. Prior to this change the PPS 99 "assert" event corresponded to the trailing edge of a positive PPS 100 pulse and the "clear" event was the leading edge of the next pulse. 101 102 As the width of a PPS pulse in a typical GPS receiver is on the 103 order of 1 millisecond, most users will not notice any significant 104 difference with this change. 105 106 Anyone who has compensated for the historical polarity reversal by 107 configuring a negative offset equal to the pulse width will need to 108 remove that workaround. 109 11020150822: 111 From legacy ata(4) driver was removed support for SATA controllers 112 supported by more functional drivers ahci(4), siis(4) and mvs(4). 113 Kernel modules ataahci and ataadaptec were removed completely, 114 replaced by ahci and mvs modules respectively. 115 11620150813: 117 10.2-RELEASE. 118 11920150731: 120 As ZFS requires more kernel stack pages than is the default on some 121 architectures e.g. i386, it now warns if KSTACK_PAGES is less than 122 ZFS_MIN_KSTACK_PAGES (which is 4 at the time of writing). 123 124 Please consider using 'options KSTACK_PAGES=X' where X is greater 125 than or equal to ZFS_MIN_KSTACK_PAGES i.e. 4 in such configurations. 126 12720150703: 128 The default Unbound configuration now enables remote control 129 using a local socket. Users who have already enabled the 130 local_unbound service should regenerate their configuration 131 by running "service local_unbound setup" as root. 132 13320150624: 134 An additional fix for the issue described in the 20150614 sendmail 135 entry below has been been committed in revision 284786. 136 13720150615: 138 The fix for the issue described in the 20150614 sendmail entry 139 below has been been committed in revision 284485. The work 140 around described in that entry is no longer needed unless the 141 default setting is overridden by a confDH_PARAMETERS configuration 142 setting of '5' or pointing to a 512 bit DH parameter file. 143 14420150614: 145 The import of openssl to address the FreeBSD-SA-15:10.openssl 146 security advisory includes a change which rejects handshakes 147 with DH parameters below 768 bits. sendmail releases prior 148 to 8.15.2 (not yet released), defaulted to a 512 bit 149 DH parameter setting for client connections. To work around 150 this interoperability, sendmail can be configured to use a 151 2048 bit DH parameter by: 152 153 1. Edit /etc/mail/`hostname`.mc 154 2. If a setting for confDH_PARAMETERS does not exist or 155 exists and is set to a string beginning with '5', 156 replace it with '2'. 157 3. If a setting for confDH_PARAMETERS exists and is set to 158 a file path, create a new file with: 159 openssl dhparam -out /path/to/file 2048 160 4. Rebuild the .cf file: 161 cd /etc/mail/; make; make install 162 5. Restart sendmail: 163 cd /etc/mail/; make restart 164 165 A sendmail patch is coming, at which time this file will be 166 updated. 167 16820150601: 169 chmod, chflags, chown and chgrp now affect symlinks in -R mode as 170 defined in symlink(7); previously symlinks were silently ignored. 171 17220150430: 173 The const qualifier has been removed from iconv(3) to comply with 174 POSIX. The ports tree is aware of this from r384038 onwards. 175 17620141215: 177 At svn r275807, The default linux compat kernel ABI has been adjusted 178 to 2.6.18 in support of the linux-c6 compat ports infrastructure 179 update. If you wish to continue using the linux-f10 compat ports, 180 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are 181 encouraged to update their linux-compat packages to linux-c6 during 182 their next update cycle. 183 184 See ports/UPDATING 20141209 and 20141215 on migration to CentOS 6 ports. 185 18620141205: 187 pjdfstest has been integrated into kyua as an opt-in test suite. 188 Please see share/doc/pjdfstest/README for a more details on how to 189 execute it. 190 19120141118: 192 10.1-RELEASE. 193 19420140904: 195 The ofwfb driver, used to provide a graphics console on PowerPC when 196 using vt(4), no longer allows mmap() of all of physical memory. This 197 will prevent Xorg on PowerPC with some ATI graphics cards from 198 initializing properly unless x11-servers/xorg-server is updated to 199 1.12.4_8 or newer. 200 20120140831: 202 The libatf-c and libatf-c++ major versions were downgraded to 0 and 203 1 respectively to match the upstream numbers. They were out of 204 sync because, when they were originally added to FreeBSD, the 205 upstream versions were not respected. These libraries are private 206 and not yet built by default, so renumbering them should be a 207 non-issue. However, unclean source trees will yield broken test 208 programs once the operator executes "make delete-old-libs" after a 209 "make installworld". 210 211 Additionally, the atf-sh binary was made private by moving it into 212 /usr/libexec/. Already-built shell test programs will keep the 213 path to the old binary so they will break after "make delete-old" 214 is run. 215 216 If you are using WITH_TESTS=yes (not the default), wipe the object 217 tree and rebuild from scratch to prevent spurious test failures. 218 This is only needed once: the misnumbered libraries and misplaced 219 binaries have been added to OptionalObsoleteFiles.inc so they will 220 be removed during a clean upgrade. 221 22220140814: 223 The ixgbe tunables now match their sysctl counterparts, for example: 224 hw.ixgbe.enable_aim => hw.ix.enable_aim 225 Anyone using ixgbe tunables should ensure they update /boot/loader.conf. 226 22720140801: 228 The NFSv4.1 server committed by r269398 changes the internal 229 function call interfaces used between the NFS and krpc modules. 230 As such, __FreeBSD_version was bumped. 231 23220140729: 233 The default unbound configuration has been modified to address 234 issues with reverse lookups on networks that use private 235 address ranges. If you use the local_unbound service, run 236 "service local_unbound setup" as root to regenerate your 237 configuration, then "service local_unbound reload" to load the 238 new configuration. 239 24020140717: 241 It is no longer necessary to include the dwarf version in your DEBUG 242 options in your kernel config file. The bug that required it to be 243 placed in the config file has bene fixed. DEBUG should now just 244 contain -g. The build system will automatically update things 245 to do the right thing. 246 24720140715: 248 Several ABI breaking changes were merged to CTL and new iSCSI code. 249 All CTL and iSCSI-related tools, such as ctladm, ctld, iscsid and 250 iscsictl need to be rebuilt to work with a new kernel. 251 25220140708: 253 The WITHOUT_VT_SUPPORT kernel config knob has been renamed 254 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning 255 which differs from the behaviour controlled by this knob.) 256 25720140608: 258 On i386 and amd64 systems, the onifconsole flag is now set by default 259 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 260 as a login TTY if it is set in the bootloader as an active kernel 261 console. No changes in behavior should result otherwise. To revert to 262 the previous behavior, set ttyu0 to "off" in /etc/ttys. 263 26420140512: 265 Clang and llvm have been upgraded to 3.4.1 release. 266 26720140321: 268 Clang and llvm have been upgraded to 3.4 release. 269 27020140306: 271 If a Makefile in a tests/ directory was auto-generating a Kyuafile 272 instead of providing an explicit one, this would prevent such 273 Makefile from providing its own Kyuafile in the future during 274 NO_CLEAN builds. This has been fixed in the Makefiles but manual 275 intervention is needed to clean an objdir if you use NO_CLEAN: 276 # find /usr/obj -name Kyuafile | xargs rm -f 277 27820140303: 279 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 280 capability mode support. Please note that enabling the feature in 281 kernel is still highly recommended. 282 28320140227: 284 OpenSSH is now built with sandbox support, and will use sandbox as 285 the default privilege separation method. This requires Capsicum 286 capability mode support in kernel. 287 28820140216: 289 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 290 been deprecated and will not be part of FreeBSD 11.0 and later 291 releases. If you use this driver, please consider switching to 292 the nfe(4) driver instead. 293 29420140120: 295 10.0-RELEASE. 296 29720131216: 298 The behavior of gss_pseudo_random() for the krb5 mechanism 299 has changed, for applications requesting a longer random string 300 than produced by the underlying enctype's pseudo-random() function. 301 In particular, the random string produced from a session key of 302 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 303 be different at the 17th octet and later, after this change. 304 The counter used in the PRF+ construction is now encoded as a 305 big-endian integer in accordance with RFC 4402. 306 __FreeBSD_version is bumped to 1000701. 307 30820131108: 309 The WITHOUT_ATF build knob has been removed and its functionality 310 has been subsumed into the more generic WITHOUT_TESTS. If you were 311 using the former to disable the build of the ATF libraries, you 312 should change your settings to use the latter. 313 31420131031: 315 The default version of mtree is nmtree which is obtained from 316 NetBSD. The output is generally the same, but may vary 317 slightly. If you found you need identical output adding 318 "-F freebsd9" to the command line should do the trick. For the 319 time being, the old mtree is available as fmtree. 320 32120131014: 322 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 323 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 324 1.1.4_8 and verify bsdyml not linked in, before running "make 325 delete-old-libs": 326 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 327 or 328 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 329 33020131010: 331 The rc.d/jail script has been updated to support jail(8) 332 configuration file. The "jail_<jname>_*" rc.conf(5) variables 333 for per-jail configuration are automatically converted to 334 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 335 This is transparently backward compatible. See below about some 336 incompatibilities and rc.conf(5) manual page for more details. 337 338 These variables are now deprecated in favor of jail(8) configuration 339 file. One can use "rc.d/jail config <jname>" command to generate 340 a jail(8) configuration file in /var/run/jail.<jname>.conf without 341 running the jail(8) utility. The default pathname of the 342 configuration file is /etc/jail.conf and can be specified by 343 using $jail_conf or $jail_<jname>_conf variables. 344 345 Please note that jail_devfs_ruleset accepts an integer at 346 this moment. Please consider to rewrite the ruleset name 347 with an integer. 348 34920130930: 350 BIND has been removed from the base system. If all you need 351 is a local resolver, simply enable and start the local_unbound 352 service instead. Otherwise, several versions of BIND are 353 available in the ports tree. The dns/bind99 port is one example. 354 355 With this change, nslookup(1) and dig(1) are no longer in the base 356 system. Users should instead use host(1) and drill(1) which are 357 in the base system. Alternatively, nslookup and dig can 358 be obtained by installing the dns/bind-tools port. 359 36020130916: 361 With the addition of unbound(8), a new unbound user is now 362 required during installworld. "mergemaster -p" can be used to 363 add the user prior to installworld, as documented in the handbook. 364 36520130911: 366 OpenSSH is now built with DNSSEC support, and will by default 367 silently trust signed SSHFP records. This can be controlled with 368 the VerifyHostKeyDNS client configuration setting. DNSSEC support 369 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 370 37120130906: 372 The GNU Compiler Collection and C++ standard library (libstdc++) 373 are no longer built by default on platforms where clang is the system 374 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 375 options in src.conf. 376 37720130905: 378 The PROCDESC kernel option is now part of the GENERIC kernel 379 configuration and is required for the rwhod(8) to work. 380 If you are using custom kernel configuration, you should include 381 'options PROCDESC'. 382 38320130905: 384 The API and ABI related to the Capsicum framework was modified 385 in backward incompatible way. The userland libraries and programs 386 have to be recompiled to work with the new kernel. This includes the 387 following libraries and programs, but the whole buildworld is 388 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 389 kdump, procstat, rwho, rwhod, uniq. 390 39120130903: 392 AES-NI intrinsic support has been added to gcc. The AES-NI module 393 has been updated to use this support. A new gcc is required to build 394 the aesni module on both i386 and amd64. 395 39620130821: 397 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 398 Thus "device padlock_rng" and "device rdrand_rng" should be 399 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 400 40120130813: 402 WITH_ICONV has been split into two feature sets. WITH_ICONV now 403 enables just the iconv* functionality and is now on by default. 404 WITH_LIBICONV_COMPAT enables the libiconv api and link time 405 compatability. Set WITHOUT_ICONV to build the old way. 406 If you have been using WITH_ICONV before, you will very likely 407 need to turn on WITH_LIBICONV_COMPAT. 408 40920130806: 410 INVARIANTS option now enables DEBUG for code with OpenSolaris and 411 Illumos origin, including ZFS. If you have INVARIANTS in your 412 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 413 explicitly. 414 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 415 locks if WITNESS option was set. Because that generated a lot of 416 witness(9) reports and all of them were believed to be false 417 positives, this is no longer done. New option OPENSOLARIS_WITNESS 418 can be used to achieve the previous behavior. 419 42020130806: 421 Timer values in IPv6 data structures now use time_uptime instead 422 of time_second. Although this is not a user-visible functional 423 change, userland utilities which directly use them---ndp(8), 424 rtadvd(8), and rtsold(8) in the base system---need to be updated 425 to r253970 or later. 426 42720130802: 428 find -delete can now delete the pathnames given as arguments, 429 instead of only files found below them or if the pathname did 430 not contain any slashes. Formerly, the following error message 431 would result: 432 433 find: -delete: <path>: relative path potentially not safe 434 435 Deleting the pathnames given as arguments can be prevented 436 without error messages using -mindepth 1 or by changing 437 directory and passing "." as argument to find. This works in the 438 old as well as the new version of find. 439 44020130726: 441 Behavior of devfs rules path matching has been changed. 442 Pattern is now always matched against fully qualified devfs 443 path and slash characters must be explicitly matched by 444 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 445 subdirectories must be reviewed. 446 44720130716: 448 The default ARM ABI has changed to the ARM EABI. The old ABI is 449 incompatible with the ARM EABI and all programs and modules will 450 need to be rebuilt to work with a new kernel. 451 452 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 453 454 NOTE: Support for the old ABI will be removed in the future and 455 users are advised to upgrade. 456 45720130709: 458 pkg_install has been disconnected from the build if you really need it 459 you should add WITH_PKGTOOLS in your src.conf(5). 460 46120130709: 462 Most of network statistics structures were changed to be able 463 keep 64-bits counters. Thus all tools, that work with networking 464 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 465 46620130618: 467 Fix a bug that allowed a tracing process (e.g. gdb) to write 468 to a memory-mapped file in the traced process's address space 469 even if neither the traced process nor the tracing process had 470 write access to that file. 471 47220130615: 473 CVS has been removed from the base system. An exact copy 474 of the code is available from the devel/cvs port. 475 47620130613: 477 Some people report the following error after the switch to bmake: 478 479 make: illegal option -- J 480 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 481 ... 482 *** [buildworld] Error code 2 483 484 this likely due to an old instance of make in 485 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 486 which src/Makefile will use that blindly, if it exists, so if 487 you see the above error: 488 489 rm -rf `make -V MAKEPATH` 490 491 should resolve it. 492 49320130516: 494 Use bmake by default. 495 Whereas before one could choose to build with bmake via 496 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 497 make. The goal is to remove these knobs for 10-RELEASE. 498 499 It is worth noting that bmake (like gmake) treats the command 500 line as the unit of failure, rather than statements within the 501 command line. Thus '(cd some/where && dosomething)' is safer 502 than 'cd some/where; dosomething'. The '()' allows consistent 503 behavior in parallel build. 504 50520130429: 506 Fix a bug that allows NFS clients to issue READDIR on files. 507 50820130426: 509 The WITHOUT_IDEA option has been removed because 510 the IDEA patent expired. 511 51220130426: 513 The sysctl which controls TRIM support under ZFS has been renamed 514 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 515 enabled by default. 516 51720130425: 518 The mergemaster command now uses the default MAKEOBJDIRPREFIX 519 rather than creating it's own in the temporary directory in 520 order allow access to bootstrapped versions of tools such as 521 install and mtree. When upgrading from version of FreeBSD where 522 the install command does not support -l, you will need to 523 install a new mergemaster command if mergemaster -p is required. 524 This can be accomplished with the command (cd src/usr.sbin/mergemaster 525 && make install). 526 52720130404: 528 Legacy ATA stack, disabled and replaced by new CAM-based one since 529 FreeBSD 9.0, completely removed from the sources. Kernel modules 530 atadisk and atapi*, user-level tools atacontrol and burncd are 531 removed. Kernel option `options ATA_CAM` is now permanently enabled 532 and removed. 533 53420130319: 535 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 536 and socketpair(2). Software, in particular Kerberos, may 537 automatically detect and use these during building. The resulting 538 binaries will not work on older kernels. 539 54020130308: 541 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 542 information, see the respective 20130304 entry). 543 54420130304: 545 Recent commits to callout(9) changed the size of struct callout, 546 so the KBI is probably heavily disturbed. Also, some functions 547 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 548 by macros. Every kernel module using it won't load, so rebuild 549 is requested. 550 551 The ctl device has been re-enabled in GENERIC for i386 and amd64, 552 but does not initialize by default (because of the new CTL_DISABLE 553 option) to save memory. To re-enable it, remove the CTL_DISABLE 554 option from the kernel config file or set kern.cam.ctl.disable=0 555 in /boot/loader.conf. 556 55720130301: 558 The ctl device has been disabled in GENERIC for i386 and amd64. 559 This was done due to the extra memory being allocated at system 560 initialisation time by the ctl driver which was only used if 561 a CAM target device was created. This makes a FreeBSD system 562 unusable on 128MB or less of RAM. 563 56420130208: 565 A new compression method (lz4) has been merged to -HEAD. Please 566 refer to zpool-features(7) for more information. 567 568 Please refer to the "ZFS notes" section of this file for information 569 on upgrading boot ZFS pools. 570 57120130129: 572 A BSD-licensed patch(1) variant has been added and is installed 573 as bsdpatch, being the GNU version the default patch. 574 To inverse the logic and use the BSD-licensed one as default, 575 while having the GNU version installed as gnupatch, rebuild 576 and install world with the WITH_BSD_PATCH knob set. 577 57820130121: 579 Due to the use of the new -l option to install(1) during build 580 and install, you must take care not to directly set the INSTALL 581 make variable in your /etc/make.conf, /etc/src.conf, or on the 582 command line. If you wish to use the -C flag for all installs 583 you may be able to add INSTALL+=-C to /etc/make.conf or 584 /etc/src.conf. 585 58620130118: 587 The install(1) option -M has changed meaning and now takes an 588 argument that is a file or path to append logs to. In the 589 unlikely event that -M was the last option on the command line 590 and the command line contained at least two files and a target 591 directory the first file will have logs appended to it. The -M 592 option served little practical purpose in the last decade so its 593 use is expected to be extremely rare. 594 59520121223: 596 After switching to Clang as the default compiler some users of ZFS 597 on i386 systems started to experience stack overflow kernel panics. 598 Please consider using 'options KSTACK_PAGES=4' in such configurations. 599 60020121222: 601 GEOM_LABEL now mangles label names read from file system metadata. 602 Mangling affect labels containing spaces, non-printable characters, 603 '%' or '"'. Device names in /etc/fstab and other places may need to 604 be updated. 605 60620121217: 607 By default, only the 10 most recent kernel dumps will be saved. To 608 restore the previous behaviour (no limit on the number of kernel dumps 609 stored in the dump directory) add the following line to /etc/rc.conf: 610 611 savecore_flags="" 612 61320121201: 614 With the addition of auditdistd(8), a new auditdistd user is now 615 required during installworld. "mergemaster -p" can be used to 616 add the user prior to installworld, as documented in the handbook. 617 61820121117: 619 The sin6_scope_id member variable in struct sockaddr_in6 is now 620 filled by the kernel before passing the structure to the userland via 621 sysctl or routing socket. This means the KAME-specific embedded scope 622 id in sin6_addr.s6_addr[2] is always cleared in userland application. 623 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 624 __FreeBSD_version is bumped to 1000025. 625 62620121105: 627 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 628 This means that the world and kernel will be compiled with clang 629 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 630 and /usr/bin/cpp. To disable this behavior and revert to building 631 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 632 of current may need to bootstrap WITHOUT_CLANG first if the clang 633 build fails (its compatibility window doesn't extend to the 9 stable 634 branch point). 635 63620121102: 637 The IPFIREWALL_FORWARD kernel option has been removed. Its 638 functionality now turned on by default. 639 64020121023: 641 The ZERO_COPY_SOCKET kernel option has been removed and 642 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 643 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 644 mechanism which is not safe and may result in kernel crashes. 645 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 646 driver supports disposeable external page sized mbuf storage. 647 Proper replacements for both zero-copy mechanisms are under 648 consideration and will eventually lead to complete removal 649 of the two kernel options. 650 65120121023: 652 The IPv4 network stack has been converted to network byte 653 order. The following modules need to be recompiled together 654 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 655 pf(4), ipfw(4), ng_ipfw(4), stf(4). 656 65720121022: 658 Support for non-MPSAFE filesystems was removed from VFS. The 659 VFS_VERSION was bumped, all filesystem modules shall be 660 recompiled. 661 66220121018: 663 All the non-MPSAFE filesystems have been disconnected from 664 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 665 portalfs, smbfs, xfs. 666 66720121016: 668 The interface cloning API and ABI has changed. The following 669 modules need to be recompiled together with kernel: 670 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 671 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 672 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 673 67420121015: 675 The sdhci driver was split in two parts: sdhci (generic SD Host 676 Controller logic) and sdhci_pci (actual hardware driver). 677 No kernel config modifications are required, but if you 678 load sdhc as a module you must switch to sdhci_pci instead. 679 68020121014: 681 Import the FUSE kernel and userland support into base system. 682 68320121013: 684 The GNU sort(1) program has been removed since the BSD-licensed 685 sort(1) has been the default for quite some time and no serious 686 problems have been reported. The corresponding WITH_GNU_SORT 687 knob has also gone. 688 68920121006: 690 The pfil(9) API/ABI for AF_INET family has been changed. Packet 691 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 692 with new kernel. 693 69420121001: 695 The net80211(4) ABI has been changed to allow for improved driver 696 PS-POLL and power-save support. All wireless drivers need to be 697 recompiled to work with the new kernel. 698 69920120913: 700 The random(4) support for the VIA hardware random number 701 generator (`PADLOCK') is no longer enabled unconditionally. 702 Add the padlock_rng device in the custom kernel config if 703 needed. The GENERIC kernels on i386 and amd64 do include the 704 device, so the change only affects the custom kernel 705 configurations. 706 70720120908: 708 The pf(4) packet filter ABI has been changed. pfctl(8) and 709 snmp_pf module need to be recompiled to work with new kernel. 710 71120120828: 712 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 713 to -HEAD. Pools that have empty_bpobj in active state can not be 714 imported read-write with ZFS implementations that do not support 715 this feature. For more information read the zpool-features(5) 716 manual page. 717 71820120727: 719 The sparc64 ZFS loader has been changed to no longer try to auto- 720 detect ZFS providers based on diskN aliases but now requires these 721 to be explicitly listed in the OFW boot-device environment variable. 722 72320120712: 724 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 725 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 726 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 727 72820120712: 729 The following sysctls and tunables have been renamed for consistency 730 with other variables: 731 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 732 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 733 73420120628: 735 The sort utility has been replaced with BSD sort. For now, GNU sort 736 is also available as "gnusort" or the default can be set back to 737 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 738 installed as "bsdsort". 739 74020120611: 741 A new version of ZFS (pool version 5000) has been merged to -HEAD. 742 Starting with this version the old system of ZFS pool versioning 743 is superseded by "feature flags". This concept enables forward 744 compatibility against certain future changes in functionality of ZFS 745 pools. The first read-only compatible "feature flag" for ZFS pools 746 is named "com.delphix:async_destroy". For more information 747 read the new zpool-features(5) manual page. 748 Please refer to the "ZFS notes" section of this file for information 749 on upgrading boot ZFS pools. 750 75120120417: 752 The malloc(3) implementation embedded in libc now uses sources imported 753 as contrib/jemalloc. The most disruptive API change is to 754 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 755 delete it prior to installworld, and optionally re-create it using the 756 new format after rebooting. See malloc.conf(5) for details 757 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 758 NAMESPACE section). 759 76020120328: 761 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 762 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 763 now spelled mips. This is to aid compatibility with third-party 764 software that expects this naming scheme in uname(3). Little-endian 765 settings are unchanged. If you are updating a big-endian mips64 machine 766 from before this change, you may need to set MACHINE_ARCH=mips64 in 767 your environment before the new build system will recognize your machine. 768 76920120306: 770 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 771 platforms. 772 77320120229: 774 Now unix domain sockets behave "as expected" on nullfs(5). Previously 775 nullfs(5) did not pass through all behaviours to the underlying layer, 776 as a result if we bound to a socket on the lower layer we could connect 777 only to the lower path; if we bound to the upper layer we could connect 778 only to the upper path. The new behavior is one can connect to both the 779 lower and the upper paths regardless what layer path one binds to. 780 78120120211: 782 The getifaddrs upgrade path broken with 20111215 has been restored. 783 If you have upgraded in between 20111215 and 20120209 you need to 784 recompile libc again with your kernel. You still need to recompile 785 world to be able to configure CARP but this restriction already 786 comes from 20111215. 787 78820120114: 789 The set_rcvar() function has been removed from /etc/rc.subr. All 790 base and ports rc.d scripts have been updated, so if you have a 791 port installed with a script in /usr/local/etc/rc.d you can either 792 hand-edit the rcvar= line, or reinstall the port. 793 794 An easy way to handle the mass-update of /etc/rc.d: 795 rm /etc/rc.d/* && mergemaster -i 796 79720120109: 798 panic(9) now stops other CPUs in the SMP systems, disables interrupts 799 on the current CPU and prevents other threads from running. 800 This behavior can be reverted using the kern.stop_scheduler_on_panic 801 tunable/sysctl. 802 The new behavior can be incompatible with kern.sync_on_panic. 803 80420111215: 805 The carp(4) facility has been changed significantly. Configuration 806 of the CARP protocol via ifconfig(8) has changed, as well as format 807 of CARP events submitted to devd(8) has changed. See manual pages 808 for more information. The arpbalance feature of carp(4) is currently 809 not supported anymore. 810 811 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 812 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 813 need to be recompiled. 814 81520111122: 816 The acpi_wmi(4) status device /dev/wmistat has been renamed to 817 /dev/wmistat0. 818 81920111108: 820 The option VFS_ALLOW_NONMPSAFE option has been added in order to 821 explicitely support non-MPSAFE filesystems. 822 It is on by default for all supported platform at this present 823 time. 824 82520111101: 826 The broken amd(4) driver has been replaced with esp(4) in the amd64, 827 i386 and pc98 GENERIC kernel configuration files. 828 82920110930: 830 sysinstall has been removed 831 83220110923: 833 The stable/9 branch created in subversion. This corresponds to the 834 RELENG_9 branch in CVS. 835 83620110913: 837 This commit modifies vfs_register() so that it uses a hash 838 calculation to set vfc_typenum, which is enabled by default. 839 The first time a system is booted after this change, the 840 vfc_typenum values will change for all file systems. The 841 main effect of this is a change to the NFS server file handles 842 for file systems that use vfc_typenum in their fsid, such as ZFS. 843 It will, however, prevent vfc_typenum from changing when file 844 systems are loaded in a different order for subsequent reboots. 845 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 846 until you are ready to remount all NFS clients after a reboot. 847 84820110828: 849 Bump the shared library version numbers for libraries that 850 do not use symbol versioning, have changed the ABI compared 851 to stable/8 and which shared library version was not bumped. 852 Done as part of 9.0-RELEASE cycle. 853 85420110815: 855 During the merge of Capsicum features, the fget(9) KPI was modified. 856 This may require the rebuilding of out-of-tree device drivers -- 857 issues have been reported specifically with the nVidia device driver. 858 __FreeBSD_version is bumped to 900041. 859 860 Also, there is a period between 20110811 and 20110814 where the 861 special devices /dev/{stdin,stdout,stderr} did not work correctly. 862 Building world from a kernel during that window may not work. 863 86420110628: 865 The packet filter (pf) code has been updated to OpenBSD 4.5. 866 You need to update userland tools to be in sync with kernel. 867 This update breaks backward compatibility with earlier pfsync(4) 868 versions. Care must be taken when updating redundant firewall setups. 869 87020110608: 871 The following sysctls and tunables are retired on x86 platforms: 872 machdep.hlt_cpus 873 machdep.hlt_logical_cpus 874 The following sysctl is retired: 875 machdep.hyperthreading_allowed 876 The sysctls were supposed to provide a way to dynamically offline and 877 online selected CPUs on x86 platforms, but the implementation has not 878 been reliable especially with SCHED_ULE scheduler. 879 machdep.hyperthreading_allowed tunable is still available to ignore 880 hyperthreading CPUs at OS level. 881 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 882 where X is an APIC ID of a CPU. Be advised, though, that disabling 883 CPUs in non-uniform fashion will result in non-uniform topology and 884 may lead to sub-optimal system performance with SCHED_ULE, which is 885 a default scheduler. 886 88720110607: 888 cpumask_t type is retired and cpuset_t is used in order to describe 889 a mask of CPUs. 890 89120110531: 892 Changes to ifconfig(8) for dynamic address family detection mandate 893 that you are running a kernel of 20110525 or later. Make sure to 894 follow the update procedure to boot a new kernel before installing 895 world. 896 89720110513: 898 Support for sun4v architecture is officially dropped 899 90020110503: 901 Several KPI breaking changes have been committed to the mii(4) layer, 902 the PHY drivers and consequently some Ethernet drivers using mii(4). 903 This means that miibus.ko and the modules of the affected Ethernet 904 drivers need to be recompiled. 905 906 Note to kernel developers: Given that the OUI bit reversion problem 907 was fixed as part of these changes all mii(4) commits related to OUIs, 908 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 909 handling, no longer can be merged verbatim to stable/8 and previous 910 branches. 911 91220110430: 913 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 914 into their kernel configurations along with 'device pci'. 915 91620110427: 917 The default NFS client is now the new NFS client, so fstype "newnfs" 918 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 919 Although mounts via fstype "nfs" will usually work without userland 920 changes, it is recommended that the mount(8) and mount_nfs(8) 921 commands be rebuilt from sources and that a link to mount_nfs called 922 mount_oldnfs be created. The new client is compiled into the 923 kernel with "options NFSCL" and this is needed for diskless root 924 file systems. The GENERIC kernel configs have been changed to use 925 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 926 To use the regular/old client, you can "mount -t oldnfs ...". For 927 a diskless root file system, you must also include a line like: 928 929 vfs.root.mountfrom="oldnfs:" 930 931 in the boot/loader.conf on the root fs on the NFS server to make 932 a diskless root fs use the old client. 933 93420110424: 935 The GENERIC kernels for all architectures now default to the new 936 CAM-based ATA stack. It means that all legacy ATA drivers were 937 removed and replaced by respective CAM drivers. If you are using 938 ATA device names in /etc/fstab or other places, make sure to update 939 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 940 where 'Y's are the sequential numbers starting from zero for each type 941 in order of detection, unless configured otherwise with tunables, 942 see cam(4)). There will be symbolic links created in /dev/ to map 943 old adX devices to the respective adaY. They should provide basic 944 compatibility for file systems mounting in most cases, but they do 945 not support old user-level APIs and do not have respective providers 946 in GEOM. Consider using updated management tools with new device names. 947 948 It is possible to load devices ahci, ata, siis and mvs as modules, 949 but option ATA_CAM should remain in kernel configuration to make ata 950 module work as CAM driver supporting legacy ATA controllers. Device ata 951 still can be used in modular fashion (atacore + ...). Modules atadisk 952 and atapi* are not used and won't affect operation in ATA_CAM mode. 953 Note that to use CAM-based ATA kernel should include CAM devices 954 scbus, pass, da (or explicitly ada), cd and optionally others. All of 955 them are parts of the cam module. 956 957 ataraid(4) functionality is now supported by the RAID GEOM class. 958 To use it you can load geom_raid kernel module and use graid(8) tool 959 for management. Instead of /dev/arX device names, use /dev/raid/rX. 960 961 No kernel config options or code have been removed, so if a problem 962 arises, please report it and optionally revert to the old ATA stack. 963 In order to do it you can remove from the kernel config: 964 options ATA_CAM 965 device ahci 966 device mvs 967 device siis 968 , and instead add back: 969 device atadisk # ATA disk drives 970 device ataraid # ATA RAID drives 971 device atapicd # ATAPI CDROM drives 972 device atapifd # ATAPI floppy drives 973 device atapist # ATAPI tape drives 974 97520110423: 976 The default NFS server has been changed to the new server, which 977 was referred to as the experimental server. If you need to switch 978 back to the old NFS server, you must now put the "-o" option on 979 both the mountd and nfsd commands. This can be done using the 980 mountd_flags and nfs_server_flags rc.conf variables until an 981 update to the rc scripts is committed, which is coming soon. 982 98320110418: 984 The GNU Objective-C runtime library (libobjc), and other Objective-C 985 related components have been removed from the base system. If you 986 require an Objective-C library, please use one of the available ports. 987 98820110331: 989 ath(4) has been split into bus- and device- modules. if_ath contains 990 the HAL, the TX rate control and the network device code. if_ath_pci 991 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 992 contains the AHB glue. Users need to load both if_ath_pci and if_ath 993 in order to use ath on everything else. 994 995 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 996 need to load if_ath and if_ath_pci for ath(4) operation. 997 99820110314: 999 As part of the replacement of sysinstall, the process of building 1000 release media has changed significantly. For details, please re-read 1001 release(7), which has been updated to reflect the new build process. 1002 100320110218: 1004 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 1005 is the last available version under GPLv2. It brings a number of new 1006 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 1007 4.1 and SSE 4.2), better support for powerpc64, a number of new 1008 directives, and lots of other small improvements. See the ChangeLog 1009 file in contrib/binutils for the full details. 1010 101120110218: 1012 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 1013 compliant, and will now use half of hash for authentication. 1014 This will break interoperability with all stacks (including all 1015 actual FreeBSD versions) who implement 1016 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 1017 authentication). 1018 The only workaround with such peers is to use another HMAC 1019 algorithm for IPsec ("phase 2") authentication. 1020 102120110207: 1022 Remove the uio_yield prototype and symbol. This function has 1023 been misnamed since it was introduced and should not be 1024 globally exposed with this name. The equivalent functionality 1025 is now available using kern_yield(curthread->td_user_pri). 1026 The function remains undocumented. 1027 102820110112: 1029 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 1030 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 1031 for scalar sysctls is defined but disabled. Code that needs 1032 UQUAD to pass the type checking that must compile on older 1033 systems where the define is not present can check against 1034 __FreeBSD_version >= 900030. 1035 1036 The system dialog(1) has been replaced with a new version previously 1037 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 1038 with the previous version, but the libdialog associated with it has 1039 a largely incompatible API. As such, the original version of libdialog 1040 will be kept temporarily as libodialog, until its base system consumers 1041 are replaced or updated. Bump __FreeBSD_version to 900030. 1042 104320110103: 1044 If you are trying to run make universe on a -stable system, and you get 1045 the following warning: 1046 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 1047 unknown. config(8) likely too old." 1048 or something similar to it, then you must upgrade your -stable system 1049 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 1050 stable/8) or build the config from the latest stable/8 branch and 1051 install it on your system. 1052 1053 Prior to this date, building a current universe on 8-stable system from 1054 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 1055 error in the first kernel build phase. A new config on those old 1056 systems will fix that problem for older versions of -current. 1057 105820101228: 1059 The TCP stack has been modified to allow Khelp modules to interact with 1060 it via helper hook points and store per-connection data in the TCP 1061 control block. Bump __FreeBSD_version to 900029. User space tools that 1062 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 1063 be recompiled. 1064 106520101114: 1066 Generic IEEE 802.3 annex 31B full duplex flow control support has been 1067 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 1068 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 1069 to take advantage of it instead of using custom implementations. This 1070 means that these drivers now no longer unconditionally advertise 1071 support for flow control but only do so if flow control is a selected 1072 media option. This was implemented in the generic support that way in 1073 order to allow flow control to be switched on and off via ifconfig(8) 1074 with the PHY specific default to typically off in order to protect 1075 from unwanted effects. Consequently, if you used flow control with 1076 one of the above mentioned drivers you now need to explicitly enable 1077 it, for example via: 1078 ifconfig bge0 media auto mediaopt flowcontrol 1079 1080 Along with the above mentioned changes generic support for setting 1081 1000baseT master mode also has been added and brgphy(4), ciphy(4), 1082 e1000phy(4) as well as ip1000phy(4) have been converted to take 1083 advantage of it. This means that these drivers now no longer take the 1084 link0 parameter for selecting master mode but the master media option 1085 has to be used instead, for example like in the following: 1086 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 1087 1088 Selection of master mode now is also available with all other PHY 1089 drivers supporting 1000baseT. 1090 109120101111: 1092 The TCP stack has received a significant update to add support for 1093 modularised congestion control and generally improve the clarity of 1094 congestion control decisions. Bump __FreeBSD_version to 900025. User 1095 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 1096 sockstat) need to be recompiled. 1097 109820101002: 1099 The man(1) utility has been replaced by a new version that no longer 1100 uses /etc/manpath.config. Please consult man.conf(5) for how to 1101 migrate local entries to the new format. 1102 110320100928: 1104 The copyright strings printed by login(1) and sshd(8) at the time of a 1105 new connection have been removed to follow other operating systems and 1106 upstream sshd. 1107 110820100915: 1109 A workaround for a fixed ld bug has been removed in kernel code, 1110 so make sure that your system ld is built from sources after 1111 revision 210245 from 2010-07-19 (r211583 if building head kernel 1112 on stable/8, r211584 for stable/7; both from 2010-08-21). 1113 A symptom of incorrect ld version is different addresses for 1114 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 1115 111620100913: 1117 The $ipv6_prefer variable in rc.conf(5) has been split into 1118 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 1119 1120 The $ip6addrctl_policy is a variable to choose a pre-defined 1121 address selection policy set by ip6addrctl(8). A value 1122 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 1123 default is "AUTO". 1124 1125 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 1126 flag (see an entry of 20090926) is set on an interface with no 1127 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 1128 security reason. If you want IPv6 link-local address on all 1129 interfaces by default, set this to "YES". 1130 1131 The old ipv6_prefer="YES" is equivalent to 1132 ipv6_activate_all_interfaces="YES" and 1133 ip6addrctl_policy="ipv6_prefer". 1134 113520100913: 1136 DTrace has grown support for userland tracing. Due to this, DTrace is 1137 now i386 and amd64 only. 1138 dtruss(1) is now installed by default on those systems and a new 1139 kernel module is needed for userland tracing: fasttrap. 1140 No changes to your kernel config file are necessary to enable 1141 userland tracing, but you might consider adding 'STRIP=' and 1142 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 1143 to have informative userland stack traces in DTrace (ustack). 1144 114520100725: 1146 The acpi_aiboost(4) driver has been removed in favor of the new 1147 aibs(4) driver. You should update your kernel configuration file. 1148 114920100722: 1150 BSD grep has been imported to the base system and it is built by 1151 default. It is completely BSD licensed, highly GNU-compatible, uses 1152 less memory than its GNU counterpart and has a small codebase. 1153 However, it is slower than its GNU counterpart, which is mostly 1154 noticeable for larger searches, for smaller ones it is measurable 1155 but not significant. The reason is complex, the most important factor 1156 is that we lack a modern and efficient regex library and GNU 1157 overcomes this by optimizing the searches internally. Future work 1158 on improving the regex performance is planned, for the meantime, 1159 users that need better performance, can build GNU grep instead by 1160 setting the WITH_GNU_GREP knob. 1161 116220100713: 1163 Due to the import of powerpc64 support, all existing powerpc kernel 1164 configuration files must be updated with a machine directive like this: 1165 machine powerpc powerpc 1166 1167 In addition, an updated config(8) is required to build powerpc kernels 1168 after this change. 1169 117020100713: 1171 A new version of ZFS (version 15) has been merged to -HEAD. 1172 This version uses a python library for the following subcommands: 1173 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 1174 For full functionality of these commands the following port must 1175 be installed: sysutils/py-zfs 1176 117720100429: 1178 'vm_page's are now hashed by physical address to an array of mutexes. 1179 Currently this is only used to serialize access to hold_count. Over 1180 time the page queue mutex will be peeled away. This changes the size 1181 of pmap on every architecture. And requires all callers of vm_page_hold 1182 and vm_page_unhold to be updated. 1183 118420100402: 1185 WITH_CTF can now be specified in src.conf (not recommended, there 1186 are some problems with static executables), make.conf (would also 1187 affect ports which do not use GNU make and do not override the 1188 compile targets) or in the kernel config (via "makeoptions 1189 WITH_CTF=yes"). 1190 When WITH_CTF was specified there before this was silently ignored, 1191 so make sure that WITH_CTF is not used in places which could lead 1192 to unwanted behavior. 1193 119420100311: 1195 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1196 to allow 32-bit compatibility on non-x86 platforms. All kernel 1197 configurations on amd64 and ia64 platforms using these options must 1198 be modified accordingly. 1199 120020100113: 1201 The utmp user accounting database has been replaced with utmpx, 1202 the user accounting interface standardized by POSIX. 1203 Unfortunately the semantics of utmp and utmpx don't match, 1204 making it practically impossible to support both interfaces. 1205 The user accounting database is used by tools like finger(1), 1206 last(1), talk(1), w(1) and ac(8). 1207 1208 All applications in the base system use utmpx. This means only 1209 local binaries (e.g. from the ports tree) may still use these 1210 utmp database files. These applications must be rebuilt to make 1211 use of utmpx. 1212 1213 After the system has been upgraded, it is safe to remove the old 1214 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1215 assuming their contents is of no importance anymore. Old wtmp 1216 databases can only be used by last(1) and ac(8) after they have 1217 been converted to the new format using wtmpcvt(1). 1218 121920100108: 1220 Introduce the kernel thread "deadlock resolver" (which can be enabled 1221 via the DEADLKRES option, see NOTES for more details) and the 1222 sleepq_type() function for sleepqueues. 1223 122420091202: 1225 The rc.firewall and rc.firewall6 were unified, and 1226 rc.firewall6 and rc.d/ip6fw were removed. 1227 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1228 variables are obsoleted. Instead, the following new rc 1229 variables are added to rc.d/ipfw: 1230 1231 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1232 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1233 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1234 1235 The meanings correspond to the relevant IPv4 variables. 1236 123720091125: 1238 8.0-RELEASE. 1239 124020091113: 1241 The default terminal emulation for syscons(4) has been changed 1242 from cons25 to xterm on all platforms except pc98. This means 1243 that the /etc/ttys file needs to be updated to ensure correct 1244 operation of applications on the console. 1245 1246 The terminal emulation style can be toggled per window by using 1247 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1248 options can be used to change the compile-time default back to 1249 cons25. 1250 1251 To prevent graphical artifacts, make sure the TERM environment 1252 variable is set to match the terminal emulation that is being 1253 performed by syscons(4). 1254 125520091109: 1256 The layout of the structure ieee80211req_scan_result has changed. 1257 Applications that require wireless scan results (e.g. ifconfig(8)) 1258 from net80211 need to be recompiled. 1259 1260 Applications such as wpa_supplicant(8) may require a full world 1261 build without using NO_CLEAN in order to get synchronized with the 1262 new structure. 1263 126420091025: 1265 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1266 There's one kernel module for each firmware. Adding "device iwnfw" 1267 to the kernel configuration file means including all three firmware 1268 images inside the kernel. If you want to include just the one for 1269 your wireless card, use the devices iwn4965fw, iwn5000fw or 1270 iwn5150fw. 1271 127220090926: 1273 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1274 into rc.d/netif. The changes are the following: 1275 1276 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1277 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1278 Note that both variables need the "inet6" keyword at the head. 1279 1280 Do not set $ipv6_network_interfaces manually if you do not 1281 understand what you are doing. It is not needed in most cases. 1282 1283 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1284 they are obsolete. 1285 1286 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1287 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1288 1289 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1290 all configured interfaces have "inet6 accept_rtadv" in the 1291 $ifconfig_IF_ipv6. These are for backward compatibility. 1292 1293 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1294 functionality of interfaces with no corresponding 1295 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1296 and the default address selection policy of ip6addrctl(8) 1297 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1298 Note that if you want to configure IPv6 functionality on the 1299 disabled interfaces after boot, first you need to clear the flag by 1300 using ifconfig(8) like: 1301 1302 ifconfig em0 inet6 -ifdisabled 1303 1304 If YES, the default address selection policy is set as 1305 IPv6-preferred. 1306 1307 The default value of $ipv6_prefer is NO. 1308 1309 4. If your system need to receive Router Advertisement messages, 1310 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1311 scripts automatically invoke rtsol(8) when the interface becomes 1312 UP. The Router Advertisement messages are used for SLAAC 1313 (State-Less Address AutoConfiguration). 1314 131520090922: 1316 802.11s D3.03 support was committed. This is incompatible with the 1317 previous code, which was based on D3.0. 1318 131920090912: 1320 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1321 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1322 control whether accepting Router Advertisement messages or not. 1323 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1324 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1325 The ifconfig(8) utility now supports these flags. 1326 132720090910: 1328 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1329 mount(8) and -a option for df(1) to see them. 1330 133120090825: 1332 The old tunable hw.bus.devctl_disable has been superseded by 1333 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1334 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1335 is 1000. 1336 133720090813: 1338 Remove the option STOP_NMI. The default action is now to use NMI only 1339 for KDB via the newly introduced function stop_cpus_hard() and 1340 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1341 134220090803: 1343 The stable/8 branch created in subversion. This corresponds to the 1344 RELENG_8 branch in CVS. 1345 134620090719: 1347 Bump the shared library version numbers for all libraries that do not 1348 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1349 __FreeBSD_version to 800105. 1350 135120090714: 1352 Due to changes in the implementation of virtual network stack support, 1353 all network-related kernel modules must be recompiled. As this change 1354 breaks the ABI, bump __FreeBSD_version to 800104. 1355 135620090713: 1357 The TOE interface to the TCP syncache has been modified to remove 1358 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1359 The cxgb driver is the only TOE consumer affected by this change, and 1360 needs to be recompiled along with the kernel. As this change breaks 1361 the ABI, bump __FreeBSD_version to 800103. 1362 136320090712: 1364 Padding has been added to struct tcpcb, sackhint and tcpstat in 1365 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1366 maintaining the ABI. However, this change breaks the ABI, so bump 1367 __FreeBSD_version to 800102. User space tools that rely on the size of 1368 any of these structs (e.g. sockstat) need to be recompiled. 1369 137020090630: 1371 The NFS_LEGACYRPC option has been removed along with the old kernel 1372 RPC implementation that this option selected. Kernel configurations 1373 may need to be adjusted. 1374 137520090629: 1376 The network interface device nodes at /dev/net/<interface> have been 1377 removed. All ioctl operations can be performed the normal way using 1378 routing sockets. The kqueue functionality can generally be replaced 1379 with routing sockets. 1380 138120090628: 1382 The documentation from the FreeBSD Documentation Project (Handbook, 1383 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1384 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1385 138620090624: 1387 The ABI of various structures related to the SYSV IPC API have been 1388 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1389 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1390 800100. 1391 139220090622: 1393 Layout of struct vnet has changed as routing related variables were 1394 moved to their own Vimage module. Modules need to be recompiled. Bump 1395 __FreeBSD_version to 800099. 1396 139720090619: 1398 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1399 respectively. As long as no more than 16 groups per process are used, 1400 no changes should be visible. When more than 16 groups are used, old 1401 binaries may fail if they call getgroups() or getgrouplist() with 1402 statically sized storage. Recompiling will work around this, but 1403 applications should be modified to use dynamically allocated storage 1404 for group arrays as POSIX.1-2008 does not cap an implementation's 1405 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1406 1407 NFS and portalfs mounts may also be affected as the list of groups is 1408 truncated to 16. Users of NFS who use more than 16 groups, should 1409 take care that negative group permissions are not used on the exported 1410 file systems as they will not be reliable unless a GSSAPI based 1411 authentication method is used. 1412 141320090616: 1414 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1415 option compiles in the support for adaptive spinning for lockmgrs 1416 which want to enable it. The lockinit() function now accepts the flag 1417 LK_ADAPTIVE in order to make the lock object subject to adaptive 1418 spinning when both held in write and read mode. 1419 142020090613: 1421 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1422 changed. User applications that use this ioctl need to be rebuilt. 1423 142420090611: 1425 The layout of struct thread has changed. Kernel and modules need to 1426 be rebuilt. 1427 142820090608: 1429 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1430 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1431 143220090602: 1433 window(1) has been removed from the base system. It can now be 1434 installed from ports. The port is called misc/window. 1435 143620090601: 1437 The way we are storing and accessing `routing table' entries has 1438 changed. Programs reading the FIB, like netstat, need to be 1439 re-compiled. 1440 144120090601: 1442 A new netisr implementation has been added for FreeBSD 8. Network 1443 file system modules, such as igmp, ipdivert, and others, should be 1444 rebuilt. 1445 Bump __FreeBSD_version to 800096. 1446 144720090530: 1448 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1449 more valid. 1450 145120090530: 1452 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1453 Bump __FreeBSD_version to 800094. 1454 145520090529: 1456 Add mnt_xflag field to 'struct mount'. File system modules need to be 1457 rebuilt. 1458 Bump __FreeBSD_version to 800093. 1459 146020090528: 1461 The compiling option ADAPTIVE_SX has been retired while it has been 1462 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1463 The KPI for sx_init_flags() changes as accepting flags: 1464 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1465 been introduced in order to handle the reversed logic. 1466 Bump __FreeBSD_version to 800092. 1467 146820090527: 1469 Add support for hierarchical jails. Remove global securelevel. 1470 Bump __FreeBSD_version to 800091. 1471 147220090523: 1473 The layout of struct vnet_net has changed, therefore modules 1474 need to be rebuilt. 1475 Bump __FreeBSD_version to 800090. 1476 147720090523: 1478 The newly imported zic(8) produces a new format in the output. Please 1479 run tzsetup(8) to install the newly created data to /etc/localtime. 1480 148120090520: 1482 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1483 hw.usb.* and is now consistent again with previous releases. 1484 148520090520: 1486 802.11 monitor mode support was revised and driver api's were changed. 1487 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1488 of DLT_IEEE802_11. No user-visible data structures were changed but 1489 applications that use DLT_IEEE802_11 may require changes. 1490 Bump __FreeBSD_version to 800088. 1491 149220090430: 1493 The layout of the following structs has changed: sysctl_oid, 1494 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1495 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1496 panics may be experienced. World rebuild is required for 1497 correctly checking networking state from userland. 1498 Bump __FreeBSD_version to 800085. 1499 150020090429: 1501 MLDv2 and Source-Specific Multicast (SSM) have been merged 1502 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1503 The implementation of SSM within FreeBSD's IPv6 stack closely 1504 follows the IPv4 implementation. 1505 1506 For kernel developers: 1507 1508 * The most important changes are that the ip6_output() and 1509 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1510 and this lock has been downgraded to a non-recursive mutex. 1511 1512 * As with the changes to the IPv4 stack to support SSM, filtering 1513 of inbound multicast traffic must now be performed by transport 1514 protocols within the IPv6 stack. This does not apply to TCP and 1515 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1516 1517 * The KPIs used by IPv6 multicast are similar to those used by 1518 the IPv4 stack, with the following differences: 1519 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1520 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1521 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1522 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1523 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1524 for MLDv1 have an additional 'timer' argument which is used to 1525 jitter the initial membership report for the solicited-node 1526 multicast membership on-link. 1527 * This is not strictly needed for MLDv2, which already jitters 1528 its report transmissions. However, the 'timer' argument is 1529 preserved in case MLDv1 is active on the interface. 1530 1531 * The KAME linked-list based IPv6 membership implementation has 1532 been refactored to use a vector similar to that used by the IPv4 1533 stack. 1534 Code which maintains a list of its own multicast memberships 1535 internally, e.g. carp, has been updated to reflect the new 1536 semantics. 1537 1538 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1539 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1540 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1541 implementation constraint which needs to be addressed in HEAD. 1542 1543 For application developers: 1544 1545 * The changes are broadly similar to those made for the IPv4 1546 stack. 1547 1548 * The use of IPv4 and IPv6 multicast socket options on the same 1549 socket, using mapped addresses, HAS NOT been tested or supported. 1550 1551 * There are a number of issues with the implementation of various 1552 IPv6 multicast APIs which need to be resolved in the API surface 1553 before the implementation is fully compatible with KAME userland 1554 use, and these are mostly to do with interface index treatment. 1555 1556 * The literature available discusses the use of either the delta / ASM 1557 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1558 using setsourcefilter(3)/getsourcefilter(3). For more information 1559 please refer to RFC 3768, 'Socket Interface Extensions for 1560 Multicast Source Filters'. 1561 1562 * Applications which use the published RFC 3678 APIs should be fine. 1563 1564 For systems administrators: 1565 1566 * The mtest(8) utility has been refactored to support IPv6, in 1567 addition to IPv4. Interface addresses are no longer accepted 1568 as arguments, their names must be used instead. The utility 1569 will map the interface name to its first IPv4 address as 1570 returned by getifaddrs(3). 1571 1572 * The ifmcstat(8) utility has also been updated to print the MLDv2 1573 endpoint state and source filter lists via sysctl(3). 1574 1575 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1576 loopback of IPv6 multicast datagrams by default; it defaults to 1 1577 to preserve the existing behaviour. Disabling multicast loopback is 1578 recommended for optimal system performance. 1579 1580 * The IPv6 MROUTING code has been changed to examine this sysctl 1581 instead of attempting to perform a group lookup before looping 1582 back forwarded datagrams. 1583 1584 Bump __FreeBSD_version to 800084. 1585 158620090422: 1587 Implement low-level Bluetooth HCI API. 1588 Bump __FreeBSD_version to 800083. 1589 159020090419: 1591 The layout of struct malloc_type, used by modules to register new 1592 memory allocation types, has changed. Most modules will need to 1593 be rebuilt or panics may be experienced. 1594 Bump __FreeBSD_version to 800081. 1595 159620090415: 1597 Anticipate overflowing inp_flags - add inp_flags2. 1598 This changes most offsets in inpcb, so checking v4 connection 1599 state will require a world rebuild. 1600 Bump __FreeBSD_version to 800080. 1601 160220090415: 1603 Add an llentry to struct route and struct route_in6. Modules 1604 embedding a struct route will need to be recompiled. 1605 Bump __FreeBSD_version to 800079. 1606 160720090414: 1608 The size of rt_metrics_lite and by extension rtentry has changed. 1609 Networking administration apps will need to be recompiled. 1610 The route command now supports show as an alias for get, weighting 1611 of routes, sticky and nostick flags to alter the behavior of stateful 1612 load balancing. 1613 Bump __FreeBSD_version to 800078. 1614 161520090408: 1616 Do not use Giant for kbdmux(4) locking. This is wrong and 1617 apparently causing more problems than it solves. This will 1618 re-open the issue where interrupt handlers may race with 1619 kbdmux(4) in polling mode. Typical symptoms include (but 1620 not limited to) duplicated and/or missing characters when 1621 low level console functions (such as gets) are used while 1622 interrupts are enabled (for example geli password prompt, 1623 mountroot prompt etc.). Disabling kbdmux(4) may help. 1624 162520090407: 1626 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1627 kernel modules referencing any of the above need to be recompiled. 1628 Bump __FreeBSD_version to 800075. 1629 163020090320: 1631 GEOM_PART has become the default partition slicer for storage devices, 1632 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1633 introduces some changes: 1634 1635 MSDOS/EBR: the devices created from MSDOS extended partition entries 1636 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1637 to devices with offset-based names. fstabs may need to be modified. 1638 1639 BSD: the "geometry does not match label" warning is harmless in most 1640 cases but it points to problems in file system misalignment with 1641 disk geometry. The "c" partition is now implicit, covers the whole 1642 top-level drive and cannot be (mis)used by users. 1643 1644 General: Kernel dumps are now not allowed to be written to devices 1645 whose partition types indicate they are meant to be used for file 1646 systems (or, in case of MSDOS partitions, as something else than 1647 the "386BSD" type). 1648 1649 Most of these changes date approximately from 200812. 1650 165120090319: 1652 The uscanner(4) driver has been removed from the kernel. This follows 1653 Linux removing theirs in 2.6 and making libusb the default interface 1654 (supported by sane). 1655 165620090319: 1657 The multicast forwarding code has been cleaned up. netstat(1) 1658 only relies on KVM now for printing bandwidth upcall meters. 1659 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1660 ip6_mroute_mod respectively. The config(5) options for statically 1661 compiling this code remain the same, i.e. 'options MROUTING'. 1662 166320090315: 1664 Support for the IFF_NEEDSGIANT network interface flag has been 1665 removed, which means that non-MPSAFE network device drivers are no 1666 longer supported. In particular, if_ar, if_sr, and network device 1667 drivers from the old (legacy) USB stack can no longer be built or 1668 used. 1669 167020090313: 1671 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1672 a bunch of new language catalog files have also been added. 1673 This means that some common libc messages are now localized and 1674 they depend on the LC_MESSAGES environmental variable. 1675 167620090313: 1677 The k8temp(4) driver has been renamed to amdtemp(4) since 1678 support for Family 10 and Family 11 CPU families was added. 1679 168020090309: 1681 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1682 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1683 1684 For kernel developers, the most important changes are that the 1685 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1686 and this lock has been downgraded to a non-recursive mutex. 1687 1688 Transport protocols (UDP, Raw IP) are now responsible for filtering 1689 inbound multicast traffic according to group membership and source 1690 filters. The imo_multicast_filter() KPI exists for this purpose. 1691 Transports which do not use multicast (SCTP, TCP) already reject 1692 multicast by default. Forwarding and receive performance may improve 1693 as a mutex acquisition is no longer needed in the ip_input() 1694 low-level input path. in_addmulti() and in_delmulti() are shimmed 1695 to new KPIs which exist to support SSM in-kernel. 1696 1697 For application developers, it is recommended that loopback of 1698 multicast datagrams be disabled for best performance, as this 1699 will still cause the lock to be taken for each looped-back 1700 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1701 be tuned to 0 to disable loopback by default; it defaults to 1 1702 to preserve the existing behaviour. 1703 1704 For systems administrators, to obtain best performance with 1705 multicast reception and multiple groups, it is always recommended 1706 that a card with a suitably precise hash filter is used. Hash 1707 collisions will still result in the lock being taken within the 1708 transport protocol input path to check group membership. 1709 1710 If deploying FreeBSD in an environment with IGMP snooping switches, 1711 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1712 enabled; this forces 224.0.0.0/24 group membership to be announced 1713 via IGMP. 1714 1715 The size of 'struct igmpstat' has changed; netstat needs to be 1716 recompiled to reflect this. 1717 Bump __FreeBSD_version to 800070. 1718 171920090309: 1720 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1721 updated to use it. This requires a buildworld/installworld in order to 1722 update the library and dependencies (usbconfig, etc). Its advisable to 1723 rebuild all ports which uses libusb. More specific directions are given 1724 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1725 libusb are no longer required and can be removed. 1726 172720090302: 1728 A workaround is committed to allow the creation of System V shared 1729 memory segment of size > 2 GB on the 64-bit architectures. 1730 Due to a limitation of the existing ABI, the shm_segsz member 1731 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1732 wrong for large segments. Note that limits must be explicitly 1733 raised to allow such segments to be created. 1734 173520090301: 1736 The layout of struct ifnet has changed, requiring a rebuild of all 1737 network device driver modules. 1738 173920090227: 1740 The /dev handling for the new USB stack has changed, a 1741 buildworld/installworld is required for libusb20. 1742 174320090223: 1744 The new USB2 stack has now been permanently moved in and all kernel and 1745 module names reverted to their previous values (eg, usb, ehci, ohci, 1746 ums, ...). The old usb stack can be compiled in by prefixing the name 1747 with the letter 'o', the old usb modules have been removed. 1748 Updating entry 20090216 for xorg and 20090215 for libmap may still 1749 apply. 1750 175120090217: 1752 The rc.conf(5) option if_up_delay has been renamed to 1753 defaultroute_delay to better reflect its purpose. If you have 1754 customized this setting in /etc/rc.conf you need to update it to 1755 use the new name. 1756 175720090216: 1758 xorg 7.4 wants to configure its input devices via hald which does not 1759 yet work with USB2. If the keyboard/mouse does not work in xorg then 1760 add 1761 Option "AllowEmptyInput" "off" 1762 to your ServerLayout section. This will cause X to use the configured 1763 kbd and mouse sections from your xorg.conf. 1764 176520090215: 1766 The GENERIC kernels for all architectures now default to the new USB2 1767 stack. No kernel config options or code have been removed so if a 1768 problem arises please report it and optionally revert to the old USB 1769 stack. If you are loading USB kernel modules or have a custom kernel 1770 that includes GENERIC then ensure that usb names are also changed over, 1771 eg uftdi -> usb2_serial_ftdi. 1772 1773 Older programs linked against the ports libusb 0.1 need to be 1774 redirected to the new stack's libusb20. /etc/libmap.conf can 1775 be used for this: 1776 # Map old usb library to new one for usb2 stack 1777 libusb-0.1.so.8 libusb20.so.1 1778 177920090209: 1780 All USB ethernet devices now attach as interfaces under the name ueN 1781 (eg. ue0). This is to provide a predictable name as vendors often 1782 change usb chipsets in a product without notice. 1783 178420090203: 1785 The ichsmb(4) driver has been changed to require SMBus slave 1786 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1787 All of the other SMBus controller drivers require left-justified 1788 slave addresses, so this change makes all the drivers provide the 1789 same interface. 1790 179120090201: 1792 INET6 statistics (struct ip6stat) was updated. 1793 netstat(1) needs to be recompiled. 1794 179520090119: 1796 NTFS has been removed from GENERIC kernel on amd64 to match 1797 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1798 will load ntfs.ko module automatically when NTFS support is 1799 actually needed, unless ntfs.ko is not installed or security 1800 level prohibits loading kernel modules. If either is the case, 1801 "options NTFS" has to be added into kernel config. 1802 180320090115: 1804 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1805 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1806 800061. User space tools that rely on the size of struct tcpcb in 1807 tcp_var.h (e.g. sockstat) need to be recompiled. 1808 180920081225: 1810 ng_tty(4) module updated to match the new TTY subsystem. 1811 Due to API change, user-level applications must be updated. 1812 New API support added to mpd5 CVS and expected to be present 1813 in next mpd5.3 release. 1814 181520081219: 1816 With __FreeBSD_version 800060 the makefs tool is part of 1817 the base system (it was a port). 1818 181920081216: 1820 The afdata and ifnet locks have been changed from mutexes to 1821 rwlocks, network modules will need to be re-compiled. 1822 182320081214: 1824 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1825 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1826 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1827 architecture and 40 bytes on 64-bit architecture. The userland 1828 applications "arp" and "ndp" have been updated accordingly. 1829 The output from "netstat -r" shows only routing entries and 1830 none of the L2 information. 1831 183220081130: 1833 __FreeBSD_version 800057 marks the switchover from the 1834 binary ath hal to source code. Users must add the line: 1835 1836 options AH_SUPPORT_AR5416 1837 1838 to their kernel config files when specifying: 1839 1840 device ath_hal 1841 1842 The ath_hal module no longer exists; the code is now compiled 1843 together with the driver in the ath module. It is now 1844 possible to tailor chip support (i.e. reduce the set of chips 1845 and thereby the code size); consult ath_hal(4) for details. 1846 184720081121: 1848 __FreeBSD_version 800054 adds memory barriers to 1849 <machine/atomic.h>, new interfaces to ifnet to facilitate 1850 multiple hardware transmit queues for cards that support 1851 them, and a lock-less ring-buffer implementation to 1852 enable drivers to more efficiently manage queueing of 1853 packets. 1854 185520081117: 1856 A new version of ZFS (version 13) has been merged to -HEAD. 1857 This version has zpool attribute "listsnapshots" off by 1858 default, which means "zfs list" does not show snapshots, 1859 and is the same as Solaris behavior. 1860 186120081028: 1862 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1863 186420081009: 1865 The uhci, ohci, ehci and slhci USB Host controller drivers have 1866 been put into separate modules. If you load the usb module 1867 separately through loader.conf you will need to load the 1868 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1869 controller add the following to loader.conf: 1870 1871 uhci_load="YES" 1872 ehci_load="YES" 1873 187420081009: 1875 The ABI used by the PMC toolset has changed. Please keep 1876 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1877 sync. 1878 187920081009: 1880 atapci kernel module now includes only generic PCI ATA 1881 driver. AHCI driver moved to ataahci kernel module. 1882 All vendor-specific code moved into separate kernel modules: 1883 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1884 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1885 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1886 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1887 188820080820: 1889 The TTY subsystem of the kernel has been replaced by a new 1890 implementation, which provides better scalability and an 1891 improved driver model. Most common drivers have been migrated to 1892 the new TTY subsystem, while others have not. The following 1893 drivers have not yet been ported to the new TTY layer: 1894 1895 PCI/ISA: 1896 cy, digi, rc, rp, sio 1897 1898 USB: 1899 ubser, ucycom 1900 1901 Line disciplines: 1902 ng_h4, ng_tty, ppp, sl, snp 1903 1904 Adding these drivers to your kernel configuration file shall 1905 cause compilation to fail. 1906 190720080818: 1908 ntpd has been upgraded to 4.2.4p5. 1909 191020080801: 1911 OpenSSH has been upgraded to 5.1p1. 1912 1913 For many years, FreeBSD's version of OpenSSH preferred DSA 1914 over RSA for host and user authentication keys. With this 1915 upgrade, we've switched to the vendor's default of RSA over 1916 DSA. This may cause upgraded clients to warn about unknown 1917 host keys even for previously known hosts. Users should 1918 follow the usual procedure for verifying host keys before 1919 accepting the RSA key. 1920 1921 This can be circumvented by setting the "HostKeyAlgorithms" 1922 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1923 command line. 1924 1925 Please note that the sequence of keys offered for 1926 authentication has been changed as well. You may want to 1927 specify IdentityFile in a different order to revert this 1928 behavior. 1929 193020080713: 1931 The sio(4) driver has been removed from the i386 and amd64 1932 kernel configuration files. This means uart(4) is now the 1933 default serial port driver on those platforms as well. 1934 1935 To prevent collisions with the sio(4) driver, the uart(4) driver 1936 uses different names for its device nodes. This means the 1937 onboard serial port will now most likely be called "ttyu0" 1938 instead of "ttyd0". You may need to reconfigure applications to 1939 use the new device names. 1940 1941 When using the serial port as a boot console, be sure to update 1942 /boot/device.hints and /etc/ttys before booting the new kernel. 1943 If you forget to do so, you can still manually specify the hints 1944 at the loader prompt: 1945 1946 set hint.uart.0.at="isa" 1947 set hint.uart.0.port="0x3F8" 1948 set hint.uart.0.flags="0x10" 1949 set hint.uart.0.irq="4" 1950 boot -s 1951 195220080609: 1953 The gpt(8) utility has been removed. Use gpart(8) to partition 1954 disks instead. 1955 195620080603: 1957 The version that Linuxulator emulates was changed from 2.4.2 1958 to 2.6.16. If you experience any problems with Linux binaries 1959 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1960 if it fixes the problem contact emulation mailing list. 1961 196220080525: 1963 ISDN4BSD (I4B) was removed from the src tree. You may need to 1964 update a your kernel configuration and remove relevant entries. 1965 196620080509: 1967 I have checked in code to support multiple routing tables. 1968 See the man pages setfib(1) and setfib(2). 1969 This is a hopefully backwards compatible version, 1970 but to make use of it you need to compile your kernel 1971 with options ROUTETABLES=2 (or more up to 16). 1972 197320080420: 1974 The 802.11 wireless support was redone to enable multi-bss 1975 operation on devices that are capable. The underlying device 1976 is no longer used directly but instead wlanX devices are 1977 cloned with ifconfig. This requires changes to rc.conf files. 1978 For example, change: 1979 ifconfig_ath0="WPA DHCP" 1980 to 1981 wlans_ath0=wlan0 1982 ifconfig_wlan0="WPA DHCP" 1983 see rc.conf(5) for more details. In addition, mergemaster of 1984 /etc/rc.d is highly recommended. Simultaneous update of userland 1985 and kernel wouldn't hurt either. 1986 1987 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1988 modules were merged into the base wlan module. All references 1989 to these modules (e.g. in kernel config files) must be removed. 1990 199120080408: 1992 psm(4) has gained write(2) support in native operation level. 1993 Arbitrary commands can be written to /dev/psm%d and status can 1994 be read back from it. Therefore, an application is responsible 1995 for status validation and error recovery. It is a no-op in 1996 other operation levels. 1997 199820080312: 1999 Support for KSE threading has been removed from the kernel. To 2000 run legacy applications linked against KSE libmap.conf may 2001 be used. The following libmap.conf may be used to ensure 2002 compatibility with any prior release: 2003 2004 libpthread.so.1 libthr.so.1 2005 libpthread.so.2 libthr.so.2 2006 libkse.so.3 libthr.so.3 2007 200820080301: 2009 The layout of struct vmspace has changed. This affects libkvm 2010 and any executables that link against libkvm and use the 2011 kvm_getprocs() function. In particular, but not exclusively, 2012 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 2013 The effects are minimal, but it's advisable to upgrade world 2014 nonetheless. 2015 201620080229: 2017 The latest em driver no longer has support in it for the 2018 82575 adapter, this is now moved to the igb driver. The 2019 split was done to make new features that are incompatible 2020 with older hardware easier to do. 2021 202220080220: 2023 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 2024 likewise the kernel option is now GEOM_LINUX_LVM. 2025 202620080211: 2027 The default NFS mount mode has changed from UDP to TCP for 2028 increased reliability. If you rely on (insecurely) NFS 2029 mounting across a firewall you may need to update your 2030 firewall rules. 2031 203220080208: 2033 Belatedly note the addition of m_collapse for compacting 2034 mbuf chains. 2035 203620080126: 2037 The fts(3) structures have been changed to use adequate 2038 integer types for their members and so to be able to cope 2039 with huge file trees. The old fts(3) ABI is preserved 2040 through symbol versioning in libc, so third-party binaries 2041 using fts(3) should still work, although they will not take 2042 advantage of the extended types. At the same time, some 2043 third-party software might fail to build after this change 2044 due to unportable assumptions made in its source code about 2045 fts(3) structure members. Such software should be fixed 2046 by its vendor or, in the worst case, in the ports tree. 2047 FreeBSD_version 800015 marks this change for the unlikely 2048 case that a portable fix is impossible. 2049 205020080123: 2051 To upgrade to -current after this date, you must be running 2052 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 2053 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 2054 205520071128: 2056 The ADAPTIVE_GIANT kernel option has been retired because its 2057 functionality is the default now. 2058 205920071118: 2060 The AT keyboard emulation of sunkbd(4) has been turned on 2061 by default. In order to make the special symbols of the Sun 2062 keyboards driven by sunkbd(4) work under X these now have 2063 to be configured the same way as Sun USB keyboards driven 2064 by ukbd(4) (which also does AT keyboard emulation), f.e.: 2065 2066 Option "XkbLayout" "us" 2067 Option "XkbRules" "xorg" 2068 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 2069 207020071024: 2071 It has been decided that it is desirable to provide ABI 2072 backwards compatibility to the FreeBSD 4/5/6 versions of the 2073 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 2074 broken with the introduction of PCI domain support (see the 2075 20070930 entry). Unfortunately, this required the ABI of 2076 PCIOCGETCONF to be broken again in order to be able to 2077 provide backwards compatibility to the old version of that 2078 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 2079 again. As for prominent ports this affects neither pciutils 2080 nor xorg-server this time, the hal port needs to be rebuilt 2081 however. 2082 208320071020: 2084 The misnamed kthread_create() and friends have been renamed 2085 to kproc_create() etc. Many of the callers already 2086 used kproc_start().. 2087 I will return kthread_create() and friends in a while 2088 with implementations that actually create threads, not procs. 2089 Renaming corresponds with version 800002. 2090 209120071010: 2092 RELENG_7 branched. 2093 2094COMMON ITEMS: 2095 2096 General Notes 2097 ------------- 2098 Avoid using make -j when upgrading. While generally safe, there are 2099 sometimes problems using -j to upgrade. If your upgrade fails with 2100 -j, please try again without -j. From time to time in the past there 2101 have been problems using -j with buildworld and/or installworld. This 2102 is especially true when upgrading between "distant" versions (eg one 2103 that cross a major release boundary or several minor releases, or when 2104 several months have passed on the -current branch). 2105 2106 Sometimes, obscure build problems are the result of environment 2107 poisoning. This can happen because the make utility reads its 2108 environment when searching for values for global variables. To run 2109 your build attempts in an "environmental clean room", prefix all make 2110 commands with 'env -i '. See the env(1) manual page for more details. 2111 2112 When upgrading from one major version to another it is generally best 2113 to upgrade to the latest code in the currently installed branch first, 2114 then do an upgrade to the new branch. This is the best-tested upgrade 2115 path, and has the highest probability of being successful. Please try 2116 this approach before reporting problems with a major version upgrade. 2117 2118 When upgrading a live system, having a root shell around before 2119 installing anything can help undo problems. Not having a root shell 2120 around can lead to problems if pam has changed too much from your 2121 starting point to allow continued authentication after the upgrade. 2122 2123 ZFS notes 2124 --------- 2125 When upgrading the boot ZFS pool to a new version, always follow 2126 these two steps: 2127 2128 1.) recompile and reinstall the ZFS boot loader and boot block 2129 (this is part of "make buildworld" and "make installworld") 2130 2131 2.) update the ZFS boot block on your boot drive 2132 2133 The following example updates the ZFS boot block on the first 2134 partition (freebsd-boot) of a GPT partitioned drive ad0: 2135 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 2136 2137 Non-boot pools do not need these updates. 2138 2139 To build a kernel 2140 ----------------- 2141 If you are updating from a prior version of FreeBSD (even one just 2142 a few days old), you should follow this procedure. It is the most 2143 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 2144 2145 make kernel-toolchain 2146 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 2147 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 2148 2149 To test a kernel once 2150 --------------------- 2151 If you just want to boot a kernel once (because you are not sure 2152 if it works, or if you want to boot a known bad kernel to provide 2153 debugging information) run 2154 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 2155 nextboot -k testkernel 2156 2157 To just build a kernel when you know that it won't mess you up 2158 -------------------------------------------------------------- 2159 This assumes you are already running a CURRENT system. Replace 2160 ${arch} with the architecture of your machine (e.g. "i386", 2161 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 2162 2163 cd src/sys/${arch}/conf 2164 config KERNEL_NAME_HERE 2165 cd ../compile/KERNEL_NAME_HERE 2166 make depend 2167 make 2168 make install 2169 2170 If this fails, go to the "To build a kernel" section. 2171 2172 To rebuild everything and install it on the current system. 2173 ----------------------------------------------------------- 2174 # Note: sometimes if you are running current you gotta do more than 2175 # is listed here if you are upgrading from a really old current. 2176 2177 <make sure you have good level 0 dumps> 2178 make buildworld 2179 make kernel KERNCONF=YOUR_KERNEL_HERE 2180 [1] 2181 <reboot in single user> [3] 2182 mergemaster -p [5] 2183 make installworld 2184 mergemaster -i [4] 2185 make delete-old [6] 2186 <reboot> 2187 2188 To cross-install current onto a separate partition 2189 -------------------------------------------------- 2190 # In this approach we use a separate partition to hold 2191 # current's root, 'usr', and 'var' directories. A partition 2192 # holding "/", "/usr" and "/var" should be about 2GB in 2193 # size. 2194 2195 <make sure you have good level 0 dumps> 2196 <boot into -stable> 2197 make buildworld 2198 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2199 <maybe newfs current's root partition> 2200 <mount current's root partition on directory ${CURRENT_ROOT}> 2201 make installworld DESTDIR=${CURRENT_ROOT} 2202 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2203 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2204 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2205 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2206 <reboot into current> 2207 <do a "native" rebuild/install as described in the previous section> 2208 <maybe install compatibility libraries from ports/misc/compat*> 2209 <reboot> 2210 2211 2212 To upgrade in-place from stable to current 2213 ---------------------------------------------- 2214 <make sure you have good level 0 dumps> 2215 make buildworld [9] 2216 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2217 [1] 2218 <reboot in single user> [3] 2219 mergemaster -p [5] 2220 make installworld 2221 mergemaster -i [4] 2222 make delete-old [6] 2223 <reboot> 2224 2225 Make sure that you've read the UPDATING file to understand the 2226 tweaks to various things you need. At this point in the life 2227 cycle of current, things change often and you are on your own 2228 to cope. The defaults can also change, so please read ALL of 2229 the UPDATING entries. 2230 2231 Also, if you are tracking -current, you must be subscribed to 2232 freebsd-current@freebsd.org. Make sure that before you update 2233 your sources that you have read and understood all the recent 2234 messages there. If in doubt, please track -stable which has 2235 much fewer pitfalls. 2236 2237 [1] If you have third party modules, such as vmware, you 2238 should disable them at this point so they don't crash your 2239 system on reboot. 2240 2241 [3] From the bootblocks, boot -s, and then do 2242 fsck -p 2243 mount -u / 2244 mount -a 2245 cd src 2246 adjkerntz -i # if CMOS is wall time 2247 Also, when doing a major release upgrade, it is required that 2248 you boot into single user mode to do the installworld. 2249 2250 [4] Note: This step is non-optional. Failure to do this step 2251 can result in a significant reduction in the functionality of the 2252 system. Attempting to do it by hand is not recommended and those 2253 that pursue this avenue should read this file carefully, as well 2254 as the archives of freebsd-current and freebsd-hackers mailing lists 2255 for potential gotchas. The -U option is also useful to consider. 2256 See mergemaster(8) for more information. 2257 2258 [5] Usually this step is a noop. However, from time to time 2259 you may need to do this if you get unknown user in the following 2260 step. It never hurts to do it all the time. You may need to 2261 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2262 install) after the buildworld before this step if you last updated 2263 from current before 20130425 or from -stable before 20130430. 2264 2265 [6] This only deletes old files and directories. Old libraries 2266 can be deleted by "make delete-old-libs", but you have to make 2267 sure that no program is using those libraries anymore. 2268 2269 [8] In order to have a kernel that can run the 4.x binaries needed to 2270 do an installworld, you must include the COMPAT_FREEBSD4 option in 2271 your kernel. Failure to do so may leave you with a system that is 2272 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2273 required to run the 5.x binaries on more recent kernels. And so on 2274 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2275 2276 Make sure that you merge any new devices from GENERIC since the 2277 last time you updated your kernel config file. 2278 2279 [9] When checking out sources, you must include the -P flag to have 2280 cvs prune empty directories. 2281 2282 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2283 "?=" instead of the "=" assignment operator, so that buildworld can 2284 override the CPUTYPE if it needs to. 2285 2286 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2287 not on the command line, or in /etc/make.conf. buildworld will 2288 warn if it is improperly defined. 2289FORMAT: 2290 2291This file contains a list, in reverse chronological order, of major 2292breakages in tracking -current. It is not guaranteed to be a complete 2293list of such breakages, and only contains entries since October 10, 2007. 2294If you need to see UPDATING entries from before that date, you will need 2295to fetch an UPDATING file from an older FreeBSD release. 2296 2297Copyright information: 2298 2299Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2300 2301Redistribution, publication, translation and use, with or without 2302modification, in full or in part, in any form or format of this 2303document are permitted without further permission from the author. 2304 2305THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2306IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2307WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2308DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2309INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2310(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2311SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2312HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2313STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2314IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2315POSSIBILITY OF SUCH DAMAGE. 2316 2317Contact Warner Losh if you have any questions about your use of 2318this document. 2319 2320$FreeBSD: stable/10/UPDATING 335670 2018-06-26 16:16:08Z gjb $ 2321