UPDATING revision 260940
1Updating Information for FreeBSD current users 2 3This file is maintained and copyrighted by M. Warner Losh <imp@freebsd.org>. 4See end of file for further details. For commonly done items, please see the 5COMMON ITEMS: section later in the file. These instructions assume that you 6basically know what you are doing. If not, then please consult the FreeBSD 7handbook: 8 9 http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/makeworld.html 10 11Items affecting the ports and packages system can be found in 12/usr/ports/UPDATING. Please read that file before running portupgrade. 13 14NOTE: FreeBSD has switched from gcc to clang. If you have trouble bootstrapping 15from older versions of FreeBSD, try WITHOUT_CLANG to bootstrap to the tip of 16stable/10, and then rebuild without this option. The bootstrap process from 17older version of current is a bit fragile. 18 1920140120: 20 10.0-RELEASE. 21 2220131216: 23 The behavior of gss_pseudo_random() for the krb5 mechanism 24 has changed, for applications requesting a longer random string 25 than produced by the underlying enctype's pseudo-random() function. 26 In particular, the random string produced from a session key of 27 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 28 be different at the 17th octet and later, after this change. 29 The counter used in the PRF+ construction is now encoded as a 30 big-endian integer in accordance with RFC 4402. 31 __FreeBSD_version is bumped to 1000701. 32 3320131108: 34 The WITHOUT_ATF build knob has been removed and its functionality 35 has been subsumed into the more generic WITHOUT_TESTS. If you were 36 using the former to disable the build of the ATF libraries, you 37 should change your settings to use the latter. 38 3920131031: 40 The default version of mtree is nmtree which is obtained from 41 NetBSD. The output is generally the same, but may vary 42 slightly. If you found you need identical output adding 43 "-F freebsd9" to the command line should do the trick. For the 44 time being, the old mtree is available as fmtree. 45 4620131014: 47 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 48 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 49 1.1.4_8 and verify bsdyml not linked in, before running "make 50 delete-old-libs": 51 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 52 or 53 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 54 5520131010: 56 The rc.d/jail script has been updated to support jail(8) 57 configuration file. The "jail_<jname>_*" rc.conf(5) variables 58 for per-jail configuration are automatically converted to 59 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 60 This is transparently backward compatible. See below about some 61 incompatibilities and rc.conf(5) manual page for more details. 62 63 These variables are now deprecated in favor of jail(8) configuration 64 file. One can use "rc.d/jail config <jname>" command to generate 65 a jail(8) configuration file in /var/run/jail.<jname>.conf without 66 running the jail(8) utility. The default pathname of the 67 configuration file is /etc/jail.conf and can be specified by 68 using $jail_conf or $jail_<jname>_conf variables. 69 70 Please note that jail_devfs_ruleset accepts an integer at 71 this moment. Please consider to rewrite the ruleset name 72 with an integer. 73 7420130930: 75 BIND has been removed from the base system. If all you need 76 is a local resolver, simply enable and start the local_unbound 77 service instead. Otherwise, several versions of BIND are 78 available in the ports tree. The dns/bind99 port is one example. 79 80 With this change, nslookup(1) and dig(1) are no longer in the base 81 system. Users should instead use host(1) and drill(1) which are 82 in the base system. Alternatively, nslookup and dig can 83 be obtained by installing the dns/bind-tools port. 84 8520130916: 86 With the addition of unbound(8), a new unbound user is now 87 required during installworld. "mergemaster -p" can be used to 88 add the user prior to installworld, as documented in the handbook. 89 9020130911: 91 OpenSSH is now built with DNSSEC support, and will by default 92 silently trust signed SSHFP records. This can be controlled with 93 the VerifyHostKeyDNS client configuration setting. DNSSEC support 94 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 95 9620130906: 97 The GNU Compiler Collection and C++ standard library (libstdc++) 98 are no longer built by default on platforms where clang is the system 99 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 100 options in src.conf. 101 10220130905: 103 The PROCDESC kernel option is now part of the GENERIC kernel 104 configuration and is required for the rwhod(8) to work. 105 If you are using custom kernel configuration, you should include 106 'options PROCDESC'. 107 10820130905: 109 The API and ABI related to the Capsicum framework was modified 110 in backward incompatible way. The userland libraries and programs 111 have to be recompiled to work with the new kernel. This includes the 112 following libraries and programs, but the whole buildworld is 113 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 114 kdump, procstat, rwho, rwhod, uniq. 115 11620130903: 117 AES-NI intrinsic support has been added to gcc. The AES-NI module 118 has been updated to use this support. A new gcc is required to build 119 the aesni module on both i386 and amd64. 120 12120130821: 122 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 123 Thus "device padlock_rng" and "device rdrand_rng" should be 124 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 125 12620130813: 127 WITH_ICONV has been split into two feature sets. WITH_ICONV now 128 enables just the iconv* functionality and is now on by default. 129 WITH_LIBICONV_COMPAT enables the libiconv api and link time 130 compatability. Set WITHOUT_ICONV to build the old way. 131 If you have been using WITH_ICONV before, you will very likely 132 need to turn on WITH_LIBICONV_COMPAT. 133 13420130806: 135 INVARIANTS option now enables DEBUG for code with OpenSolaris and 136 Illumos origin, including ZFS. If you have INVARIANTS in your 137 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 138 explicitly. 139 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 140 locks if WITNESS option was set. Because that generated a lot of 141 witness(9) reports and all of them were believed to be false 142 positives, this is no longer done. New option OPENSOLARIS_WITNESS 143 can be used to achieve the previous behavior. 144 14520130806: 146 Timer values in IPv6 data structures now use time_uptime instead 147 of time_second. Although this is not a user-visible functional 148 change, userland utilities which directly use them---ndp(8), 149 rtadvd(8), and rtsold(8) in the base system---need to be updated 150 to r253970 or later. 151 15220130802: 153 find -delete can now delete the pathnames given as arguments, 154 instead of only files found below them or if the pathname did 155 not contain any slashes. Formerly, the following error message 156 would result: 157 158 find: -delete: <path>: relative path potentially not safe 159 160 Deleting the pathnames given as arguments can be prevented 161 without error messages using -mindepth 1 or by changing 162 directory and passing "." as argument to find. This works in the 163 old as well as the new version of find. 164 16520130726: 166 Behavior of devfs rules path matching has been changed. 167 Pattern is now always matched against fully qualified devfs 168 path and slash characters must be explicitly matched by 169 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 170 subdirectories must be reviewed. 171 17220130716: 173 The default ARM ABI has changed to the ARM EABI. The old ABI is 174 incompatible with the ARM EABI and all programs and modules will 175 need to be rebuilt to work with a new kernel. 176 177 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 178 179 NOTE: Support for the old ABI will be removed in the future and 180 users are advised to upgrade. 181 18220130709: 183 pkg_install has been disconnected from the build if you really need it 184 you should add WITH_PKGTOOLS in your src.conf(5). 185 18620130709: 187 Most of network statistics structures were changed to be able 188 keep 64-bits counters. Thus all tools, that work with networking 189 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 190 19120130629: 192 Fix targets that run multiple make's to use && rather than ; 193 so that subsequent steps depend on success of previous. 194 195 NOTE: if building 'universe' with -j* on stable/8 or stable/9 196 it would be better to start the build using bmake, to avoid 197 overloading the machine. 198 19920130618: 200 Fix a bug that allowed a tracing process (e.g. gdb) to write 201 to a memory-mapped file in the traced process's address space 202 even if neither the traced process nor the tracing process had 203 write access to that file. 204 20520130615: 206 CVS has been removed from the base system. An exact copy 207 of the code is available from the devel/cvs port. 208 20920130613: 210 Some people report the following error after the switch to bmake: 211 212 make: illegal option -- J 213 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 214 ... 215 *** [buildworld] Error code 2 216 217 this likely due to an old instance of make in 218 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 219 which src/Makefile will use that blindly, if it exists, so if 220 you see the above error: 221 222 rm -rf `make -V MAKEPATH` 223 224 should resolve it. 225 22620130516: 227 Use bmake by default. 228 Whereas before one could choose to build with bmake via 229 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 230 make. The goal is to remove these knobs for 10-RELEASE. 231 232 It is worth noting that bmake (like gmake) treats the command 233 line as the unit of failure, rather than statements within the 234 command line. Thus '(cd some/where && dosomething)' is safer 235 than 'cd some/where; dosomething'. The '()' allows consistent 236 behavior in parallel build. 237 23820130429: 239 Fix a bug that allows NFS clients to issue READDIR on files. 240 24120130426: 242 The WITHOUT_IDEA option has been removed because 243 the IDEA patent expired. 244 24520130426: 246 The sysctl which controls TRIM support under ZFS has been renamed 247 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 248 enabled by default. 249 25020130425: 251 The mergemaster command now uses the default MAKEOBJDIRPREFIX 252 rather than creating it's own in the temporary directory in 253 order allow access to bootstrapped versions of tools such as 254 install and mtree. When upgrading from version of FreeBSD where 255 the install command does not support -l, you will need to 256 install a new mergemaster command if mergemaster -p is required. 257 This can be accomplished with the command (cd src/usr.sbin/mergemaster 258 && make install). 259 26020130404: 261 Legacy ATA stack, disabled and replaced by new CAM-based one since 262 FreeBSD 9.0, completely removed from the sources. Kernel modules 263 atadisk and atapi*, user-level tools atacontrol and burncd are 264 removed. Kernel option `options ATA_CAM` is now permanently enabled 265 and removed. 266 26720130319: 268 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 269 and socketpair(2). Software, in particular Kerberos, may 270 automatically detect and use these during building. The resulting 271 binaries will not work on older kernels. 272 27320130308: 274 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 275 information, see the respective 20130304 entry). 276 27720130304: 278 Recent commits to callout(9) changed the size of struct callout, 279 so the KBI is probably heavily disturbed. Also, some functions 280 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 281 by macros. Every kernel module using it won't load, so rebuild 282 is requested. 283 284 The ctl device has been re-enabled in GENERIC for i386 and amd64, 285 but does not initialize by default (because of the new CTL_DISABLE 286 option) to save memory. To re-enable it, remove the CTL_DISABLE 287 option from the kernel config file or set kern.cam.ctl.disable=0 288 in /boot/loader.conf. 289 29020130301: 291 The ctl device has been disabled in GENERIC for i386 and amd64. 292 This was done due to the extra memory being allocated at system 293 initialisation time by the ctl driver which was only used if 294 a CAM target device was created. This makes a FreeBSD system 295 unusable on 128MB or less of RAM. 296 29720130208: 298 A new compression method (lz4) has been merged to -HEAD. Please 299 refer to zpool-features(7) for more information. 300 301 Please refer to the "ZFS notes" section of this file for information 302 on upgrading boot ZFS pools. 303 30420130129: 305 A BSD-licensed patch(1) variant has been added and is installed 306 as bsdpatch, being the GNU version the default patch. 307 To inverse the logic and use the BSD-licensed one as default, 308 while having the GNU version installed as gnupatch, rebuild 309 and install world with the WITH_BSD_PATCH knob set. 310 31120130121: 312 Due to the use of the new -l option to install(1) during build 313 and install, you must take care not to directly set the INSTALL 314 make variable in your /etc/make.conf, /etc/src.conf, or on the 315 command line. If you wish to use the -C flag for all installs 316 you may be able to add INSTALL+=-C to /etc/make.conf or 317 /etc/src.conf. 318 31920130118: 320 The install(1) option -M has changed meaning and now takes an 321 argument that is a file or path to append logs to. In the 322 unlikely event that -M was the last option on the command line 323 and the command line contained at least two files and a target 324 directory the first file will have logs appended to it. The -M 325 option served little practical purpose in the last decade so its 326 use is expected to be extremely rare. 327 32820121223: 329 After switching to Clang as the default compiler some users of ZFS 330 on i386 systems started to experience stack overflow kernel panics. 331 Please consider using 'options KSTACK_PAGES=4' in such configurations. 332 33320121222: 334 GEOM_LABEL now mangles label names read from file system metadata. 335 Mangling affect labels containing spaces, non-printable characters, 336 '%' or '"'. Device names in /etc/fstab and other places may need to 337 be updated. 338 33920121217: 340 By default, only the 10 most recent kernel dumps will be saved. To 341 restore the previous behaviour (no limit on the number of kernel dumps 342 stored in the dump directory) add the following line to /etc/rc.conf: 343 344 savecore_flags="" 345 34620121201: 347 With the addition of auditdistd(8), a new auditdistd user is now 348 required during installworld. "mergemaster -p" can be used to 349 add the user prior to installworld, as documented in the handbook. 350 35120121117: 352 The sin6_scope_id member variable in struct sockaddr_in6 is now 353 filled by the kernel before passing the structure to the userland via 354 sysctl or routing socket. This means the KAME-specific embedded scope 355 id in sin6_addr.s6_addr[2] is always cleared in userland application. 356 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 357 __FreeBSD_version is bumped to 1000025. 358 35920121105: 360 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 361 This means that the world and kernel will be compiled with clang 362 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 363 and /usr/bin/cpp. To disable this behavior and revert to building 364 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 365 of current may need to bootstrap WITHOUT_CLANG first if the clang 366 build fails (its compatibility window doesn't extend to the 9 stable 367 branch point). 368 36920121102: 370 The IPFIREWALL_FORWARD kernel option has been removed. Its 371 functionality now turned on by default. 372 37320121023: 374 The ZERO_COPY_SOCKET kernel option has been removed and 375 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 376 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 377 mechanism which is not safe and may result in kernel crashes. 378 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 379 driver supports disposeable external page sized mbuf storage. 380 Proper replacements for both zero-copy mechanisms are under 381 consideration and will eventually lead to complete removal 382 of the two kernel options. 383 38420121023: 385 The IPv4 network stack has been converted to network byte 386 order. The following modules need to be recompiled together 387 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 388 pf(4), ipfw(4), ng_ipfw(4), stf(4). 389 39020121022: 391 Support for non-MPSAFE filesystems was removed from VFS. The 392 VFS_VERSION was bumped, all filesystem modules shall be 393 recompiled. 394 39520121018: 396 All the non-MPSAFE filesystems have been disconnected from 397 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 398 portalfs, smbfs, xfs. 399 40020121016: 401 The interface cloning API and ABI has changed. The following 402 modules need to be recompiled together with kernel: 403 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 404 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 405 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 406 40720121015: 408 The sdhci driver was split in two parts: sdhci (generic SD Host 409 Controller logic) and sdhci_pci (actual hardware driver). 410 No kernel config modifications are required, but if you 411 load sdhc as a module you must switch to sdhci_pci instead. 412 41320121014: 414 Import the FUSE kernel and userland support into base system. 415 41620121013: 417 The GNU sort(1) program has been removed since the BSD-licensed 418 sort(1) has been the default for quite some time and no serious 419 problems have been reported. The corresponding WITH_GNU_SORT 420 knob has also gone. 421 42220121006: 423 The pfil(9) API/ABI for AF_INET family has been changed. Packet 424 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 425 with new kernel. 426 42720121001: 428 The net80211(4) ABI has been changed to allow for improved driver 429 PS-POLL and power-save support. All wireless drivers need to be 430 recompiled to work with the new kernel. 431 43220120913: 433 The random(4) support for the VIA hardware random number 434 generator (`PADLOCK') is no longer enabled unconditionally. 435 Add the padlock_rng device in the custom kernel config if 436 needed. The GENERIC kernels on i386 and amd64 do include the 437 device, so the change only affects the custom kernel 438 configurations. 439 44020120908: 441 The pf(4) packet filter ABI has been changed. pfctl(8) and 442 snmp_pf module need to be recompiled to work with new kernel. 443 44420120828: 445 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 446 to -HEAD. Pools that have empty_bpobj in active state can not be 447 imported read-write with ZFS implementations that do not support 448 this feature. For more information read the zpool-features(5) 449 manual page. 450 45120120727: 452 The sparc64 ZFS loader has been changed to no longer try to auto- 453 detect ZFS providers based on diskN aliases but now requires these 454 to be explicitly listed in the OFW boot-device environment variable. 455 45620120712: 457 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 458 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 459 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 460 46120120712: 462 The following sysctls and tunables have been renamed for consistency 463 with other variables: 464 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 465 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 466 46720120628: 468 The sort utility has been replaced with BSD sort. For now, GNU sort 469 is also available as "gnusort" or the default can be set back to 470 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 471 installed as "bsdsort". 472 47320120611: 474 A new version of ZFS (pool version 5000) has been merged to -HEAD. 475 Starting with this version the old system of ZFS pool versioning 476 is superseded by "feature flags". This concept enables forward 477 compatibility against certain future changes in functionality of ZFS 478 pools. The first read-only compatible "feature flag" for ZFS pools 479 is named "com.delphix:async_destroy". For more information 480 read the new zpool-features(5) manual page. 481 Please refer to the "ZFS notes" section of this file for information 482 on upgrading boot ZFS pools. 483 48420120417: 485 The malloc(3) implementation embedded in libc now uses sources imported 486 as contrib/jemalloc. The most disruptive API change is to 487 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 488 delete it prior to installworld, and optionally re-create it using the 489 new format after rebooting. See malloc.conf(5) for details 490 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 491 NAMESPACE section). 492 49320120328: 494 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 495 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 496 now spelled mips. This is to aid compatibility with third-party 497 software that expects this naming scheme in uname(3). Little-endian 498 settings are unchanged. If you are updating a big-endian mips64 machine 499 from before this change, you may need to set MACHINE_ARCH=mips64 in 500 your environment before the new build system will recognize your machine. 501 50220120306: 503 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 504 platforms. 505 50620120229: 507 Now unix domain sockets behave "as expected" on nullfs(5). Previously 508 nullfs(5) did not pass through all behaviours to the underlying layer, 509 as a result if we bound to a socket on the lower layer we could connect 510 only to the lower path; if we bound to the upper layer we could connect 511 only to the upper path. The new behavior is one can connect to both the 512 lower and the upper paths regardless what layer path one binds to. 513 51420120211: 515 The getifaddrs upgrade path broken with 20111215 has been restored. 516 If you have upgraded in between 20111215 and 20120209 you need to 517 recompile libc again with your kernel. You still need to recompile 518 world to be able to configure CARP but this restriction already 519 comes from 20111215. 520 52120120114: 522 The set_rcvar() function has been removed from /etc/rc.subr. All 523 base and ports rc.d scripts have been updated, so if you have a 524 port installed with a script in /usr/local/etc/rc.d you can either 525 hand-edit the rcvar= line, or reinstall the port. 526 527 An easy way to handle the mass-update of /etc/rc.d: 528 rm /etc/rc.d/* && mergemaster -i 529 53020120109: 531 panic(9) now stops other CPUs in the SMP systems, disables interrupts 532 on the current CPU and prevents other threads from running. 533 This behavior can be reverted using the kern.stop_scheduler_on_panic 534 tunable/sysctl. 535 The new behavior can be incompatible with kern.sync_on_panic. 536 53720111215: 538 The carp(4) facility has been changed significantly. Configuration 539 of the CARP protocol via ifconfig(8) has changed, as well as format 540 of CARP events submitted to devd(8) has changed. See manual pages 541 for more information. The arpbalance feature of carp(4) is currently 542 not supported anymore. 543 544 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 545 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 546 need to be recompiled. 547 54820111122: 549 The acpi_wmi(4) status device /dev/wmistat has been renamed to 550 /dev/wmistat0. 551 55220111108: 553 The option VFS_ALLOW_NONMPSAFE option has been added in order to 554 explicitely support non-MPSAFE filesystems. 555 It is on by default for all supported platform at this present 556 time. 557 55820111101: 559 The broken amd(4) driver has been replaced with esp(4) in the amd64, 560 i386 and pc98 GENERIC kernel configuration files. 561 56220110930: 563 sysinstall has been removed 564 56520110923: 566 The stable/9 branch created in subversion. This corresponds to the 567 RELENG_9 branch in CVS. 568 56920110913: 570 This commit modifies vfs_register() so that it uses a hash 571 calculation to set vfc_typenum, which is enabled by default. 572 The first time a system is booted after this change, the 573 vfc_typenum values will change for all file systems. The 574 main effect of this is a change to the NFS server file handles 575 for file systems that use vfc_typenum in their fsid, such as ZFS. 576 It will, however, prevent vfc_typenum from changing when file 577 systems are loaded in a different order for subsequent reboots. 578 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 579 until you are ready to remount all NFS clients after a reboot. 580 58120110828: 582 Bump the shared library version numbers for libraries that 583 do not use symbol versioning, have changed the ABI compared 584 to stable/8 and which shared library version was not bumped. 585 Done as part of 9.0-RELEASE cycle. 586 58720110815: 588 During the merge of Capsicum features, the fget(9) KPI was modified. 589 This may require the rebuilding of out-of-tree device drivers -- 590 issues have been reported specifically with the nVidia device driver. 591 __FreeBSD_version is bumped to 900041. 592 593 Also, there is a period between 20110811 and 20110814 where the 594 special devices /dev/{stdin,stdout,stderr} did not work correctly. 595 Building world from a kernel during that window may not work. 596 59720110628: 598 The packet filter (pf) code has been updated to OpenBSD 4.5. 599 You need to update userland tools to be in sync with kernel. 600 This update breaks backward compatibility with earlier pfsync(4) 601 versions. Care must be taken when updating redundant firewall setups. 602 60320110608: 604 The following sysctls and tunables are retired on x86 platforms: 605 machdep.hlt_cpus 606 machdep.hlt_logical_cpus 607 The following sysctl is retired: 608 machdep.hyperthreading_allowed 609 The sysctls were supposed to provide a way to dynamically offline and 610 online selected CPUs on x86 platforms, but the implementation has not 611 been reliable especially with SCHED_ULE scheduler. 612 machdep.hyperthreading_allowed tunable is still available to ignore 613 hyperthreading CPUs at OS level. 614 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 615 where X is an APIC ID of a CPU. Be advised, though, that disabling 616 CPUs in non-uniform fashion will result in non-uniform topology and 617 may lead to sub-optimal system performance with SCHED_ULE, which is 618 a default scheduler. 619 62020110607: 621 cpumask_t type is retired and cpuset_t is used in order to describe 622 a mask of CPUs. 623 62420110531: 625 Changes to ifconfig(8) for dynamic address family detection mandate 626 that you are running a kernel of 20110525 or later. Make sure to 627 follow the update procedure to boot a new kernel before installing 628 world. 629 63020110513: 631 Support for sun4v architecture is officially dropped 632 63320110503: 634 Several KPI breaking changes have been committed to the mii(4) layer, 635 the PHY drivers and consequently some Ethernet drivers using mii(4). 636 This means that miibus.ko and the modules of the affected Ethernet 637 drivers need to be recompiled. 638 639 Note to kernel developers: Given that the OUI bit reversion problem 640 was fixed as part of these changes all mii(4) commits related to OUIs, 641 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 642 handling, no longer can be merged verbatim to stable/8 and previous 643 branches. 644 64520110430: 646 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 647 into their kernel configurations along with 'device pci'. 648 64920110427: 650 The default NFS client is now the new NFS client, so fstype "newnfs" 651 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 652 Although mounts via fstype "nfs" will usually work without userland 653 changes, it is recommended that the mount(8) and mount_nfs(8) 654 commands be rebuilt from sources and that a link to mount_nfs called 655 mount_oldnfs be created. The new client is compiled into the 656 kernel with "options NFSCL" and this is needed for diskless root 657 file systems. The GENERIC kernel configs have been changed to use 658 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 659 To use the regular/old client, you can "mount -t oldnfs ...". For 660 a diskless root file system, you must also include a line like: 661 662 vfs.root.mountfrom="oldnfs:" 663 664 in the boot/loader.conf on the root fs on the NFS server to make 665 a diskless root fs use the old client. 666 66720110424: 668 The GENERIC kernels for all architectures now default to the new 669 CAM-based ATA stack. It means that all legacy ATA drivers were 670 removed and replaced by respective CAM drivers. If you are using 671 ATA device names in /etc/fstab or other places, make sure to update 672 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 673 where 'Y's are the sequential numbers starting from zero for each type 674 in order of detection, unless configured otherwise with tunables, 675 see cam(4)). There will be symbolic links created in /dev/ to map 676 old adX devices to the respective adaY. They should provide basic 677 compatibility for file systems mounting in most cases, but they do 678 not support old user-level APIs and do not have respective providers 679 in GEOM. Consider using updated management tools with new device names. 680 681 It is possible to load devices ahci, ata, siis and mvs as modules, 682 but option ATA_CAM should remain in kernel configuration to make ata 683 module work as CAM driver supporting legacy ATA controllers. Device ata 684 still can be used in modular fashion (atacore + ...). Modules atadisk 685 and atapi* are not used and won't affect operation in ATA_CAM mode. 686 Note that to use CAM-based ATA kernel should include CAM devices 687 scbus, pass, da (or explicitly ada), cd and optionally others. All of 688 them are parts of the cam module. 689 690 ataraid(4) functionality is now supported by the RAID GEOM class. 691 To use it you can load geom_raid kernel module and use graid(8) tool 692 for management. Instead of /dev/arX device names, use /dev/raid/rX. 693 694 No kernel config options or code have been removed, so if a problem 695 arises, please report it and optionally revert to the old ATA stack. 696 In order to do it you can remove from the kernel config: 697 options ATA_CAM 698 device ahci 699 device mvs 700 device siis 701 , and instead add back: 702 device atadisk # ATA disk drives 703 device ataraid # ATA RAID drives 704 device atapicd # ATAPI CDROM drives 705 device atapifd # ATAPI floppy drives 706 device atapist # ATAPI tape drives 707 70820110423: 709 The default NFS server has been changed to the new server, which 710 was referred to as the experimental server. If you need to switch 711 back to the old NFS server, you must now put the "-o" option on 712 both the mountd and nfsd commands. This can be done using the 713 mountd_flags and nfs_server_flags rc.conf variables until an 714 update to the rc scripts is committed, which is coming soon. 715 71620110418: 717 The GNU Objective-C runtime library (libobjc), and other Objective-C 718 related components have been removed from the base system. If you 719 require an Objective-C library, please use one of the available ports. 720 72120110331: 722 ath(4) has been split into bus- and device- modules. if_ath contains 723 the HAL, the TX rate control and the network device code. if_ath_pci 724 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 725 contains the AHB glue. Users need to load both if_ath_pci and if_ath 726 in order to use ath on everything else. 727 728 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 729 need to load if_ath and if_ath_pci for ath(4) operation. 730 73120110314: 732 As part of the replacement of sysinstall, the process of building 733 release media has changed significantly. For details, please re-read 734 release(7), which has been updated to reflect the new build process. 735 73620110218: 737 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 738 is the last available version under GPLv2. It brings a number of new 739 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 740 4.1 and SSE 4.2), better support for powerpc64, a number of new 741 directives, and lots of other small improvements. See the ChangeLog 742 file in contrib/binutils for the full details. 743 74420110218: 745 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 746 compliant, and will now use half of hash for authentication. 747 This will break interoperability with all stacks (including all 748 actual FreeBSD versions) who implement 749 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 750 authentication). 751 The only workaround with such peers is to use another HMAC 752 algorithm for IPsec ("phase 2") authentication. 753 75420110207: 755 Remove the uio_yield prototype and symbol. This function has 756 been misnamed since it was introduced and should not be 757 globally exposed with this name. The equivalent functionality 758 is now available using kern_yield(curthread->td_user_pri). 759 The function remains undocumented. 760 76120110112: 762 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 763 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 764 for scalar sysctls is defined but disabled. Code that needs 765 UQUAD to pass the type checking that must compile on older 766 systems where the define is not present can check against 767 __FreeBSD_version >= 900030. 768 769 The system dialog(1) has been replaced with a new version previously 770 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 771 with the previous version, but the libdialog associated with it has 772 a largely incompatible API. As such, the original version of libdialog 773 will be kept temporarily as libodialog, until its base system consumers 774 are replaced or updated. Bump __FreeBSD_version to 900030. 775 77620110103: 777 If you are trying to run make universe on a -stable system, and you get 778 the following warning: 779 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 780 unknown. config(8) likely too old." 781 or something similar to it, then you must upgrade your -stable system 782 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 783 stable/8) or build the config from the latest stable/8 branch and 784 install it on your system. 785 786 Prior to this date, building a current universe on 8-stable system from 787 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 788 error in the first kernel build phase. A new config on those old 789 systems will fix that problem for older versions of -current. 790 79120101228: 792 The TCP stack has been modified to allow Khelp modules to interact with 793 it via helper hook points and store per-connection data in the TCP 794 control block. Bump __FreeBSD_version to 900029. User space tools that 795 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 796 be recompiled. 797 79820101114: 799 Generic IEEE 802.3 annex 31B full duplex flow control support has been 800 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 801 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 802 to take advantage of it instead of using custom implementations. This 803 means that these drivers now no longer unconditionally advertise 804 support for flow control but only do so if flow control is a selected 805 media option. This was implemented in the generic support that way in 806 order to allow flow control to be switched on and off via ifconfig(8) 807 with the PHY specific default to typically off in order to protect 808 from unwanted effects. Consequently, if you used flow control with 809 one of the above mentioned drivers you now need to explicitly enable 810 it, for example via: 811 ifconfig bge0 media auto mediaopt flowcontrol 812 813 Along with the above mentioned changes generic support for setting 814 1000baseT master mode also has been added and brgphy(4), ciphy(4), 815 e1000phy(4) as well as ip1000phy(4) have been converted to take 816 advantage of it. This means that these drivers now no longer take the 817 link0 parameter for selecting master mode but the master media option 818 has to be used instead, for example like in the following: 819 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 820 821 Selection of master mode now is also available with all other PHY 822 drivers supporting 1000baseT. 823 82420101111: 825 The TCP stack has received a significant update to add support for 826 modularised congestion control and generally improve the clarity of 827 congestion control decisions. Bump __FreeBSD_version to 900025. User 828 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 829 sockstat) need to be recompiled. 830 83120101002: 832 The man(1) utility has been replaced by a new version that no longer 833 uses /etc/manpath.config. Please consult man.conf(5) for how to 834 migrate local entries to the new format. 835 83620100928: 837 The copyright strings printed by login(1) and sshd(8) at the time of a 838 new connection have been removed to follow other operating systems and 839 upstream sshd. 840 84120100915: 842 A workaround for a fixed ld bug has been removed in kernel code, 843 so make sure that your system ld is built from sources after 844 revision 210245 from 2010-07-19 (r211583 if building head kernel 845 on stable/8, r211584 for stable/7; both from 2010-08-21). 846 A symptom of incorrect ld version is different addresses for 847 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 848 84920100913: 850 The $ipv6_prefer variable in rc.conf(5) has been split into 851 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 852 853 The $ip6addrctl_policy is a variable to choose a pre-defined 854 address selection policy set by ip6addrctl(8). A value 855 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 856 default is "AUTO". 857 858 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 859 flag (see an entry of 20090926) is set on an interface with no 860 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 861 security reason. If you want IPv6 link-local address on all 862 interfaces by default, set this to "YES". 863 864 The old ipv6_prefer="YES" is equivalent to 865 ipv6_activate_all_interfaces="YES" and 866 ip6addrctl_policy="ipv6_prefer". 867 86820100913: 869 DTrace has grown support for userland tracing. Due to this, DTrace is 870 now i386 and amd64 only. 871 dtruss(1) is now installed by default on those systems and a new 872 kernel module is needed for userland tracing: fasttrap. 873 No changes to your kernel config file are necessary to enable 874 userland tracing, but you might consider adding 'STRIP=' and 875 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 876 to have informative userland stack traces in DTrace (ustack). 877 87820100725: 879 The acpi_aiboost(4) driver has been removed in favor of the new 880 aibs(4) driver. You should update your kernel configuration file. 881 88220100722: 883 BSD grep has been imported to the base system and it is built by 884 default. It is completely BSD licensed, highly GNU-compatible, uses 885 less memory than its GNU counterpart and has a small codebase. 886 However, it is slower than its GNU counterpart, which is mostly 887 noticeable for larger searches, for smaller ones it is measurable 888 but not significant. The reason is complex, the most important factor 889 is that we lack a modern and efficient regex library and GNU 890 overcomes this by optimizing the searches internally. Future work 891 on improving the regex performance is planned, for the meantime, 892 users that need better performance, can build GNU grep instead by 893 setting the WITH_GNU_GREP knob. 894 89520100713: 896 Due to the import of powerpc64 support, all existing powerpc kernel 897 configuration files must be updated with a machine directive like this: 898 machine powerpc powerpc 899 900 In addition, an updated config(8) is required to build powerpc kernels 901 after this change. 902 90320100713: 904 A new version of ZFS (version 15) has been merged to -HEAD. 905 This version uses a python library for the following subcommands: 906 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 907 For full functionality of these commands the following port must 908 be installed: sysutils/py-zfs 909 91020100429: 911 'vm_page's are now hashed by physical address to an array of mutexes. 912 Currently this is only used to serialize access to hold_count. Over 913 time the page queue mutex will be peeled away. This changes the size 914 of pmap on every architecture. And requires all callers of vm_page_hold 915 and vm_page_unhold to be updated. 916 91720100402: 918 WITH_CTF can now be specified in src.conf (not recommended, there 919 are some problems with static executables), make.conf (would also 920 affect ports which do not use GNU make and do not override the 921 compile targets) or in the kernel config (via "makeoptions 922 WITH_CTF=yes"). 923 When WITH_CTF was specified there before this was silently ignored, 924 so make sure that WITH_CTF is not used in places which could lead 925 to unwanted behavior. 926 92720100311: 928 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 929 to allow 32-bit compatibility on non-x86 platforms. All kernel 930 configurations on amd64 and ia64 platforms using these options must 931 be modified accordingly. 932 93320100113: 934 The utmp user accounting database has been replaced with utmpx, 935 the user accounting interface standardized by POSIX. 936 Unfortunately the semantics of utmp and utmpx don't match, 937 making it practically impossible to support both interfaces. 938 The user accounting database is used by tools like finger(1), 939 last(1), talk(1), w(1) and ac(8). 940 941 All applications in the base system use utmpx. This means only 942 local binaries (e.g. from the ports tree) may still use these 943 utmp database files. These applications must be rebuilt to make 944 use of utmpx. 945 946 After the system has been upgraded, it is safe to remove the old 947 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 948 assuming their contents is of no importance anymore. Old wtmp 949 databases can only be used by last(1) and ac(8) after they have 950 been converted to the new format using wtmpcvt(1). 951 95220100108: 953 Introduce the kernel thread "deadlock resolver" (which can be enabled 954 via the DEADLKRES option, see NOTES for more details) and the 955 sleepq_type() function for sleepqueues. 956 95720091202: 958 The rc.firewall and rc.firewall6 were unified, and 959 rc.firewall6 and rc.d/ip6fw were removed. 960 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 961 variables are obsoleted. Instead, the following new rc 962 variables are added to rc.d/ipfw: 963 964 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 965 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 966 firewall_simple_onet_ipv6, firewall_trusted_ipv6 967 968 The meanings correspond to the relevant IPv4 variables. 969 97020091125: 971 8.0-RELEASE. 972 97320091113: 974 The default terminal emulation for syscons(4) has been changed 975 from cons25 to xterm on all platforms except pc98. This means 976 that the /etc/ttys file needs to be updated to ensure correct 977 operation of applications on the console. 978 979 The terminal emulation style can be toggled per window by using 980 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 981 options can be used to change the compile-time default back to 982 cons25. 983 984 To prevent graphical artifacts, make sure the TERM environment 985 variable is set to match the terminal emulation that is being 986 performed by syscons(4). 987 98820091109: 989 The layout of the structure ieee80211req_scan_result has changed. 990 Applications that require wireless scan results (e.g. ifconfig(8)) 991 from net80211 need to be recompiled. 992 993 Applications such as wpa_supplicant(8) may require a full world 994 build without using NO_CLEAN in order to get synchronized with the 995 new structure. 996 99720091025: 998 The iwn(4) driver has been updated to support the 5000 and 5150 series. 999 There's one kernel module for each firmware. Adding "device iwnfw" 1000 to the kernel configuration file means including all three firmware 1001 images inside the kernel. If you want to include just the one for 1002 your wireless card, use the devices iwn4965fw, iwn5000fw or 1003 iwn5150fw. 1004 100520090926: 1006 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1007 into rc.d/netif. The changes are the following: 1008 1009 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1010 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1011 Note that both variables need the "inet6" keyword at the head. 1012 1013 Do not set $ipv6_network_interfaces manually if you do not 1014 understand what you are doing. It is not needed in most cases. 1015 1016 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1017 they are obsolete. 1018 1019 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1020 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1021 1022 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1023 all configured interfaces have "inet6 accept_rtadv" in the 1024 $ifconfig_IF_ipv6. These are for backward compatibility. 1025 1026 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1027 functionality of interfaces with no corresponding 1028 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1029 and the default address selection policy of ip6addrctl(8) 1030 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1031 Note that if you want to configure IPv6 functionality on the 1032 disabled interfaces after boot, first you need to clear the flag by 1033 using ifconfig(8) like: 1034 1035 ifconfig em0 inet6 -ifdisabled 1036 1037 If YES, the default address selection policy is set as 1038 IPv6-preferred. 1039 1040 The default value of $ipv6_prefer is NO. 1041 1042 4. If your system need to receive Router Advertisement messages, 1043 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1044 scripts automatically invoke rtsol(8) when the interface becomes 1045 UP. The Router Advertisement messages are used for SLAAC 1046 (State-Less Address AutoConfiguration). 1047 104820090922: 1049 802.11s D3.03 support was committed. This is incompatible with the 1050 previous code, which was based on D3.0. 1051 105220090912: 1053 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1054 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1055 control whether accepting Router Advertisement messages or not. 1056 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1057 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1058 The ifconfig(8) utility now supports these flags. 1059 106020090910: 1061 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1062 mount(8) and -a option for df(1) to see them. 1063 106420090825: 1065 The old tunable hw.bus.devctl_disable has been superseded by 1066 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1067 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1068 is 1000. 1069 107020090813: 1071 Remove the option STOP_NMI. The default action is now to use NMI only 1072 for KDB via the newly introduced function stop_cpus_hard() and 1073 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1074 107520090803: 1076 The stable/8 branch created in subversion. This corresponds to the 1077 RELENG_8 branch in CVS. 1078 107920090719: 1080 Bump the shared library version numbers for all libraries that do not 1081 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1082 __FreeBSD_version to 800105. 1083 108420090714: 1085 Due to changes in the implementation of virtual network stack support, 1086 all network-related kernel modules must be recompiled. As this change 1087 breaks the ABI, bump __FreeBSD_version to 800104. 1088 108920090713: 1090 The TOE interface to the TCP syncache has been modified to remove 1091 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1092 The cxgb driver is the only TOE consumer affected by this change, and 1093 needs to be recompiled along with the kernel. As this change breaks 1094 the ABI, bump __FreeBSD_version to 800103. 1095 109620090712: 1097 Padding has been added to struct tcpcb, sackhint and tcpstat in 1098 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1099 maintaining the ABI. However, this change breaks the ABI, so bump 1100 __FreeBSD_version to 800102. User space tools that rely on the size of 1101 any of these structs (e.g. sockstat) need to be recompiled. 1102 110320090630: 1104 The NFS_LEGACYRPC option has been removed along with the old kernel 1105 RPC implementation that this option selected. Kernel configurations 1106 may need to be adjusted. 1107 110820090629: 1109 The network interface device nodes at /dev/net/<interface> have been 1110 removed. All ioctl operations can be performed the normal way using 1111 routing sockets. The kqueue functionality can generally be replaced 1112 with routing sockets. 1113 111420090628: 1115 The documentation from the FreeBSD Documentation Project (Handbook, 1116 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1117 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1118 111920090624: 1120 The ABI of various structures related to the SYSV IPC API have been 1121 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1122 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1123 800100. 1124 112520090622: 1126 Layout of struct vnet has changed as routing related variables were 1127 moved to their own Vimage module. Modules need to be recompiled. Bump 1128 __FreeBSD_version to 800099. 1129 113020090619: 1131 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1132 respectively. As long as no more than 16 groups per process are used, 1133 no changes should be visible. When more than 16 groups are used, old 1134 binaries may fail if they call getgroups() or getgrouplist() with 1135 statically sized storage. Recompiling will work around this, but 1136 applications should be modified to use dynamically allocated storage 1137 for group arrays as POSIX.1-2008 does not cap an implementation's 1138 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1139 1140 NFS and portalfs mounts may also be affected as the list of groups is 1141 truncated to 16. Users of NFS who use more than 16 groups, should 1142 take care that negative group permissions are not used on the exported 1143 file systems as they will not be reliable unless a GSSAPI based 1144 authentication method is used. 1145 114620090616: 1147 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1148 option compiles in the support for adaptive spinning for lockmgrs 1149 which want to enable it. The lockinit() function now accepts the flag 1150 LK_ADAPTIVE in order to make the lock object subject to adaptive 1151 spinning when both held in write and read mode. 1152 115320090613: 1154 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1155 changed. User applications that use this ioctl need to be rebuilt. 1156 115720090611: 1158 The layout of struct thread has changed. Kernel and modules need to 1159 be rebuilt. 1160 116120090608: 1162 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1163 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1164 116520090602: 1166 window(1) has been removed from the base system. It can now be 1167 installed from ports. The port is called misc/window. 1168 116920090601: 1170 The way we are storing and accessing `routing table' entries has 1171 changed. Programs reading the FIB, like netstat, need to be 1172 re-compiled. 1173 117420090601: 1175 A new netisr implementation has been added for FreeBSD 8. Network 1176 file system modules, such as igmp, ipdivert, and others, should be 1177 rebuilt. 1178 Bump __FreeBSD_version to 800096. 1179 118020090530: 1181 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1182 more valid. 1183 118420090530: 1185 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1186 Bump __FreeBSD_version to 800094. 1187 118820090529: 1189 Add mnt_xflag field to 'struct mount'. File system modules need to be 1190 rebuilt. 1191 Bump __FreeBSD_version to 800093. 1192 119320090528: 1194 The compiling option ADAPTIVE_SX has been retired while it has been 1195 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1196 The KPI for sx_init_flags() changes as accepting flags: 1197 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1198 been introduced in order to handle the reversed logic. 1199 Bump __FreeBSD_version to 800092. 1200 120120090527: 1202 Add support for hierarchical jails. Remove global securelevel. 1203 Bump __FreeBSD_version to 800091. 1204 120520090523: 1206 The layout of struct vnet_net has changed, therefore modules 1207 need to be rebuilt. 1208 Bump __FreeBSD_version to 800090. 1209 121020090523: 1211 The newly imported zic(8) produces a new format in the output. Please 1212 run tzsetup(8) to install the newly created data to /etc/localtime. 1213 121420090520: 1215 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1216 hw.usb.* and is now consistent again with previous releases. 1217 121820090520: 1219 802.11 monitor mode support was revised and driver api's were changed. 1220 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1221 of DLT_IEEE802_11. No user-visible data structures were changed but 1222 applications that use DLT_IEEE802_11 may require changes. 1223 Bump __FreeBSD_version to 800088. 1224 122520090430: 1226 The layout of the following structs has changed: sysctl_oid, 1227 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1228 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1229 panics may be experienced. World rebuild is required for 1230 correctly checking networking state from userland. 1231 Bump __FreeBSD_version to 800085. 1232 123320090429: 1234 MLDv2 and Source-Specific Multicast (SSM) have been merged 1235 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1236 The implementation of SSM within FreeBSD's IPv6 stack closely 1237 follows the IPv4 implementation. 1238 1239 For kernel developers: 1240 1241 * The most important changes are that the ip6_output() and 1242 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1243 and this lock has been downgraded to a non-recursive mutex. 1244 1245 * As with the changes to the IPv4 stack to support SSM, filtering 1246 of inbound multicast traffic must now be performed by transport 1247 protocols within the IPv6 stack. This does not apply to TCP and 1248 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1249 1250 * The KPIs used by IPv6 multicast are similar to those used by 1251 the IPv4 stack, with the following differences: 1252 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1253 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1254 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1255 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1256 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1257 for MLDv1 have an additional 'timer' argument which is used to 1258 jitter the initial membership report for the solicited-node 1259 multicast membership on-link. 1260 * This is not strictly needed for MLDv2, which already jitters 1261 its report transmissions. However, the 'timer' argument is 1262 preserved in case MLDv1 is active on the interface. 1263 1264 * The KAME linked-list based IPv6 membership implementation has 1265 been refactored to use a vector similar to that used by the IPv4 1266 stack. 1267 Code which maintains a list of its own multicast memberships 1268 internally, e.g. carp, has been updated to reflect the new 1269 semantics. 1270 1271 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1272 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1273 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1274 implementation constraint which needs to be addressed in HEAD. 1275 1276 For application developers: 1277 1278 * The changes are broadly similar to those made for the IPv4 1279 stack. 1280 1281 * The use of IPv4 and IPv6 multicast socket options on the same 1282 socket, using mapped addresses, HAS NOT been tested or supported. 1283 1284 * There are a number of issues with the implementation of various 1285 IPv6 multicast APIs which need to be resolved in the API surface 1286 before the implementation is fully compatible with KAME userland 1287 use, and these are mostly to do with interface index treatment. 1288 1289 * The literature available discusses the use of either the delta / ASM 1290 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1291 using setsourcefilter(3)/getsourcefilter(3). For more information 1292 please refer to RFC 3768, 'Socket Interface Extensions for 1293 Multicast Source Filters'. 1294 1295 * Applications which use the published RFC 3678 APIs should be fine. 1296 1297 For systems administrators: 1298 1299 * The mtest(8) utility has been refactored to support IPv6, in 1300 addition to IPv4. Interface addresses are no longer accepted 1301 as arguments, their names must be used instead. The utility 1302 will map the interface name to its first IPv4 address as 1303 returned by getifaddrs(3). 1304 1305 * The ifmcstat(8) utility has also been updated to print the MLDv2 1306 endpoint state and source filter lists via sysctl(3). 1307 1308 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1309 loopback of IPv6 multicast datagrams by default; it defaults to 1 1310 to preserve the existing behaviour. Disabling multicast loopback is 1311 recommended for optimal system performance. 1312 1313 * The IPv6 MROUTING code has been changed to examine this sysctl 1314 instead of attempting to perform a group lookup before looping 1315 back forwarded datagrams. 1316 1317 Bump __FreeBSD_version to 800084. 1318 131920090422: 1320 Implement low-level Bluetooth HCI API. 1321 Bump __FreeBSD_version to 800083. 1322 132320090419: 1324 The layout of struct malloc_type, used by modules to register new 1325 memory allocation types, has changed. Most modules will need to 1326 be rebuilt or panics may be experienced. 1327 Bump __FreeBSD_version to 800081. 1328 132920090415: 1330 Anticipate overflowing inp_flags - add inp_flags2. 1331 This changes most offsets in inpcb, so checking v4 connection 1332 state will require a world rebuild. 1333 Bump __FreeBSD_version to 800080. 1334 133520090415: 1336 Add an llentry to struct route and struct route_in6. Modules 1337 embedding a struct route will need to be recompiled. 1338 Bump __FreeBSD_version to 800079. 1339 134020090414: 1341 The size of rt_metrics_lite and by extension rtentry has changed. 1342 Networking administration apps will need to be recompiled. 1343 The route command now supports show as an alias for get, weighting 1344 of routes, sticky and nostick flags to alter the behavior of stateful 1345 load balancing. 1346 Bump __FreeBSD_version to 800078. 1347 134820090408: 1349 Do not use Giant for kbdmux(4) locking. This is wrong and 1350 apparently causing more problems than it solves. This will 1351 re-open the issue where interrupt handlers may race with 1352 kbdmux(4) in polling mode. Typical symptoms include (but 1353 not limited to) duplicated and/or missing characters when 1354 low level console functions (such as gets) are used while 1355 interrupts are enabled (for example geli password prompt, 1356 mountroot prompt etc.). Disabling kbdmux(4) may help. 1357 135820090407: 1359 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1360 kernel modules referencing any of the above need to be recompiled. 1361 Bump __FreeBSD_version to 800075. 1362 136320090320: 1364 GEOM_PART has become the default partition slicer for storage devices, 1365 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1366 introduces some changes: 1367 1368 MSDOS/EBR: the devices created from MSDOS extended partition entries 1369 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1370 to devices with offset-based names. fstabs may need to be modified. 1371 1372 BSD: the "geometry does not match label" warning is harmless in most 1373 cases but it points to problems in file system misalignment with 1374 disk geometry. The "c" partition is now implicit, covers the whole 1375 top-level drive and cannot be (mis)used by users. 1376 1377 General: Kernel dumps are now not allowed to be written to devices 1378 whose partition types indicate they are meant to be used for file 1379 systems (or, in case of MSDOS partitions, as something else than 1380 the "386BSD" type). 1381 1382 Most of these changes date approximately from 200812. 1383 138420090319: 1385 The uscanner(4) driver has been removed from the kernel. This follows 1386 Linux removing theirs in 2.6 and making libusb the default interface 1387 (supported by sane). 1388 138920090319: 1390 The multicast forwarding code has been cleaned up. netstat(1) 1391 only relies on KVM now for printing bandwidth upcall meters. 1392 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1393 ip6_mroute_mod respectively. The config(5) options for statically 1394 compiling this code remain the same, i.e. 'options MROUTING'. 1395 139620090315: 1397 Support for the IFF_NEEDSGIANT network interface flag has been 1398 removed, which means that non-MPSAFE network device drivers are no 1399 longer supported. In particular, if_ar, if_sr, and network device 1400 drivers from the old (legacy) USB stack can no longer be built or 1401 used. 1402 140320090313: 1404 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1405 a bunch of new language catalog files have also been added. 1406 This means that some common libc messages are now localized and 1407 they depend on the LC_MESSAGES environmental variable. 1408 140920090313: 1410 The k8temp(4) driver has been renamed to amdtemp(4) since 1411 support for Family 10 and Family 11 CPU families was added. 1412 141320090309: 1414 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1415 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1416 1417 For kernel developers, the most important changes are that the 1418 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1419 and this lock has been downgraded to a non-recursive mutex. 1420 1421 Transport protocols (UDP, Raw IP) are now responsible for filtering 1422 inbound multicast traffic according to group membership and source 1423 filters. The imo_multicast_filter() KPI exists for this purpose. 1424 Transports which do not use multicast (SCTP, TCP) already reject 1425 multicast by default. Forwarding and receive performance may improve 1426 as a mutex acquisition is no longer needed in the ip_input() 1427 low-level input path. in_addmulti() and in_delmulti() are shimmed 1428 to new KPIs which exist to support SSM in-kernel. 1429 1430 For application developers, it is recommended that loopback of 1431 multicast datagrams be disabled for best performance, as this 1432 will still cause the lock to be taken for each looped-back 1433 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1434 be tuned to 0 to disable loopback by default; it defaults to 1 1435 to preserve the existing behaviour. 1436 1437 For systems administrators, to obtain best performance with 1438 multicast reception and multiple groups, it is always recommended 1439 that a card with a suitably precise hash filter is used. Hash 1440 collisions will still result in the lock being taken within the 1441 transport protocol input path to check group membership. 1442 1443 If deploying FreeBSD in an environment with IGMP snooping switches, 1444 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1445 enabled; this forces 224.0.0.0/24 group membership to be announced 1446 via IGMP. 1447 1448 The size of 'struct igmpstat' has changed; netstat needs to be 1449 recompiled to reflect this. 1450 Bump __FreeBSD_version to 800070. 1451 145220090309: 1453 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1454 updated to use it. This requires a buildworld/installworld in order to 1455 update the library and dependencies (usbconfig, etc). Its advisable to 1456 rebuild all ports which uses libusb. More specific directions are given 1457 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1458 libusb are no longer required and can be removed. 1459 146020090302: 1461 A workaround is committed to allow the creation of System V shared 1462 memory segment of size > 2 GB on the 64-bit architectures. 1463 Due to a limitation of the existing ABI, the shm_segsz member 1464 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1465 wrong for large segments. Note that limits must be explicitly 1466 raised to allow such segments to be created. 1467 146820090301: 1469 The layout of struct ifnet has changed, requiring a rebuild of all 1470 network device driver modules. 1471 147220090227: 1473 The /dev handling for the new USB stack has changed, a 1474 buildworld/installworld is required for libusb20. 1475 147620090223: 1477 The new USB2 stack has now been permanently moved in and all kernel and 1478 module names reverted to their previous values (eg, usb, ehci, ohci, 1479 ums, ...). The old usb stack can be compiled in by prefixing the name 1480 with the letter 'o', the old usb modules have been removed. 1481 Updating entry 20090216 for xorg and 20090215 for libmap may still 1482 apply. 1483 148420090217: 1485 The rc.conf(5) option if_up_delay has been renamed to 1486 defaultroute_delay to better reflect its purpose. If you have 1487 customized this setting in /etc/rc.conf you need to update it to 1488 use the new name. 1489 149020090216: 1491 xorg 7.4 wants to configure its input devices via hald which does not 1492 yet work with USB2. If the keyboard/mouse does not work in xorg then 1493 add 1494 Option "AllowEmptyInput" "off" 1495 to your ServerLayout section. This will cause X to use the configured 1496 kbd and mouse sections from your xorg.conf. 1497 149820090215: 1499 The GENERIC kernels for all architectures now default to the new USB2 1500 stack. No kernel config options or code have been removed so if a 1501 problem arises please report it and optionally revert to the old USB 1502 stack. If you are loading USB kernel modules or have a custom kernel 1503 that includes GENERIC then ensure that usb names are also changed over, 1504 eg uftdi -> usb2_serial_ftdi. 1505 1506 Older programs linked against the ports libusb 0.1 need to be 1507 redirected to the new stack's libusb20. /etc/libmap.conf can 1508 be used for this: 1509 # Map old usb library to new one for usb2 stack 1510 libusb-0.1.so.8 libusb20.so.1 1511 151220090209: 1513 All USB ethernet devices now attach as interfaces under the name ueN 1514 (eg. ue0). This is to provide a predictable name as vendors often 1515 change usb chipsets in a product without notice. 1516 151720090203: 1518 The ichsmb(4) driver has been changed to require SMBus slave 1519 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1520 All of the other SMBus controller drivers require left-justified 1521 slave addresses, so this change makes all the drivers provide the 1522 same interface. 1523 152420090201: 1525 INET6 statistics (struct ip6stat) was updated. 1526 netstat(1) needs to be recompiled. 1527 152820090119: 1529 NTFS has been removed from GENERIC kernel on amd64 to match 1530 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1531 will load ntfs.ko module automatically when NTFS support is 1532 actually needed, unless ntfs.ko is not installed or security 1533 level prohibits loading kernel modules. If either is the case, 1534 "options NTFS" has to be added into kernel config. 1535 153620090115: 1537 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1538 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1539 800061. User space tools that rely on the size of struct tcpcb in 1540 tcp_var.h (e.g. sockstat) need to be recompiled. 1541 154220081225: 1543 ng_tty(4) module updated to match the new TTY subsystem. 1544 Due to API change, user-level applications must be updated. 1545 New API support added to mpd5 CVS and expected to be present 1546 in next mpd5.3 release. 1547 154820081219: 1549 With __FreeBSD_version 800060 the makefs tool is part of 1550 the base system (it was a port). 1551 155220081216: 1553 The afdata and ifnet locks have been changed from mutexes to 1554 rwlocks, network modules will need to be re-compiled. 1555 155620081214: 1557 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1558 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1559 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1560 architecture and 40 bytes on 64-bit architecture. The userland 1561 applications "arp" and "ndp" have been updated accordingly. 1562 The output from "netstat -r" shows only routing entries and 1563 none of the L2 information. 1564 156520081130: 1566 __FreeBSD_version 800057 marks the switchover from the 1567 binary ath hal to source code. Users must add the line: 1568 1569 options AH_SUPPORT_AR5416 1570 1571 to their kernel config files when specifying: 1572 1573 device ath_hal 1574 1575 The ath_hal module no longer exists; the code is now compiled 1576 together with the driver in the ath module. It is now 1577 possible to tailor chip support (i.e. reduce the set of chips 1578 and thereby the code size); consult ath_hal(4) for details. 1579 158020081121: 1581 __FreeBSD_version 800054 adds memory barriers to 1582 <machine/atomic.h>, new interfaces to ifnet to facilitate 1583 multiple hardware transmit queues for cards that support 1584 them, and a lock-less ring-buffer implementation to 1585 enable drivers to more efficiently manage queueing of 1586 packets. 1587 158820081117: 1589 A new version of ZFS (version 13) has been merged to -HEAD. 1590 This version has zpool attribute "listsnapshots" off by 1591 default, which means "zfs list" does not show snapshots, 1592 and is the same as Solaris behavior. 1593 159420081028: 1595 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1596 159720081009: 1598 The uhci, ohci, ehci and slhci USB Host controller drivers have 1599 been put into separate modules. If you load the usb module 1600 separately through loader.conf you will need to load the 1601 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1602 controller add the following to loader.conf: 1603 1604 uhci_load="YES" 1605 ehci_load="YES" 1606 160720081009: 1608 The ABI used by the PMC toolset has changed. Please keep 1609 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1610 sync. 1611 161220081009: 1613 atapci kernel module now includes only generic PCI ATA 1614 driver. AHCI driver moved to ataahci kernel module. 1615 All vendor-specific code moved into separate kernel modules: 1616 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1617 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1618 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1619 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1620 162120080820: 1622 The TTY subsystem of the kernel has been replaced by a new 1623 implementation, which provides better scalability and an 1624 improved driver model. Most common drivers have been migrated to 1625 the new TTY subsystem, while others have not. The following 1626 drivers have not yet been ported to the new TTY layer: 1627 1628 PCI/ISA: 1629 cy, digi, rc, rp, sio 1630 1631 USB: 1632 ubser, ucycom 1633 1634 Line disciplines: 1635 ng_h4, ng_tty, ppp, sl, snp 1636 1637 Adding these drivers to your kernel configuration file shall 1638 cause compilation to fail. 1639 164020080818: 1641 ntpd has been upgraded to 4.2.4p5. 1642 164320080801: 1644 OpenSSH has been upgraded to 5.1p1. 1645 1646 For many years, FreeBSD's version of OpenSSH preferred DSA 1647 over RSA for host and user authentication keys. With this 1648 upgrade, we've switched to the vendor's default of RSA over 1649 DSA. This may cause upgraded clients to warn about unknown 1650 host keys even for previously known hosts. Users should 1651 follow the usual procedure for verifying host keys before 1652 accepting the RSA key. 1653 1654 This can be circumvented by setting the "HostKeyAlgorithms" 1655 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1656 command line. 1657 1658 Please note that the sequence of keys offered for 1659 authentication has been changed as well. You may want to 1660 specify IdentityFile in a different order to revert this 1661 behavior. 1662 166320080713: 1664 The sio(4) driver has been removed from the i386 and amd64 1665 kernel configuration files. This means uart(4) is now the 1666 default serial port driver on those platforms as well. 1667 1668 To prevent collisions with the sio(4) driver, the uart(4) driver 1669 uses different names for its device nodes. This means the 1670 onboard serial port will now most likely be called "ttyu0" 1671 instead of "ttyd0". You may need to reconfigure applications to 1672 use the new device names. 1673 1674 When using the serial port as a boot console, be sure to update 1675 /boot/device.hints and /etc/ttys before booting the new kernel. 1676 If you forget to do so, you can still manually specify the hints 1677 at the loader prompt: 1678 1679 set hint.uart.0.at="isa" 1680 set hint.uart.0.port="0x3F8" 1681 set hint.uart.0.flags="0x10" 1682 set hint.uart.0.irq="4" 1683 boot -s 1684 168520080609: 1686 The gpt(8) utility has been removed. Use gpart(8) to partition 1687 disks instead. 1688 168920080603: 1690 The version that Linuxulator emulates was changed from 2.4.2 1691 to 2.6.16. If you experience any problems with Linux binaries 1692 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1693 if it fixes the problem contact emulation mailing list. 1694 169520080525: 1696 ISDN4BSD (I4B) was removed from the src tree. You may need to 1697 update a your kernel configuration and remove relevant entries. 1698 169920080509: 1700 I have checked in code to support multiple routing tables. 1701 See the man pages setfib(1) and setfib(2). 1702 This is a hopefully backwards compatible version, 1703 but to make use of it you need to compile your kernel 1704 with options ROUTETABLES=2 (or more up to 16). 1705 170620080420: 1707 The 802.11 wireless support was redone to enable multi-bss 1708 operation on devices that are capable. The underlying device 1709 is no longer used directly but instead wlanX devices are 1710 cloned with ifconfig. This requires changes to rc.conf files. 1711 For example, change: 1712 ifconfig_ath0="WPA DHCP" 1713 to 1714 wlans_ath0=wlan0 1715 ifconfig_wlan0="WPA DHCP" 1716 see rc.conf(5) for more details. In addition, mergemaster of 1717 /etc/rc.d is highly recommended. Simultaneous update of userland 1718 and kernel wouldn't hurt either. 1719 1720 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1721 modules were merged into the base wlan module. All references 1722 to these modules (e.g. in kernel config files) must be removed. 1723 172420080408: 1725 psm(4) has gained write(2) support in native operation level. 1726 Arbitrary commands can be written to /dev/psm%d and status can 1727 be read back from it. Therefore, an application is responsible 1728 for status validation and error recovery. It is a no-op in 1729 other operation levels. 1730 173120080312: 1732 Support for KSE threading has been removed from the kernel. To 1733 run legacy applications linked against KSE libmap.conf may 1734 be used. The following libmap.conf may be used to ensure 1735 compatibility with any prior release: 1736 1737 libpthread.so.1 libthr.so.1 1738 libpthread.so.2 libthr.so.2 1739 libkse.so.3 libthr.so.3 1740 174120080301: 1742 The layout of struct vmspace has changed. This affects libkvm 1743 and any executables that link against libkvm and use the 1744 kvm_getprocs() function. In particular, but not exclusively, 1745 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1746 The effects are minimal, but it's advisable to upgrade world 1747 nonetheless. 1748 174920080229: 1750 The latest em driver no longer has support in it for the 1751 82575 adapter, this is now moved to the igb driver. The 1752 split was done to make new features that are incompatible 1753 with older hardware easier to do. 1754 175520080220: 1756 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1757 likewise the kernel option is now GEOM_LINUX_LVM. 1758 175920080211: 1760 The default NFS mount mode has changed from UDP to TCP for 1761 increased reliability. If you rely on (insecurely) NFS 1762 mounting across a firewall you may need to update your 1763 firewall rules. 1764 176520080208: 1766 Belatedly note the addition of m_collapse for compacting 1767 mbuf chains. 1768 176920080126: 1770 The fts(3) structures have been changed to use adequate 1771 integer types for their members and so to be able to cope 1772 with huge file trees. The old fts(3) ABI is preserved 1773 through symbol versioning in libc, so third-party binaries 1774 using fts(3) should still work, although they will not take 1775 advantage of the extended types. At the same time, some 1776 third-party software might fail to build after this change 1777 due to unportable assumptions made in its source code about 1778 fts(3) structure members. Such software should be fixed 1779 by its vendor or, in the worst case, in the ports tree. 1780 FreeBSD_version 800015 marks this change for the unlikely 1781 case that a portable fix is impossible. 1782 178320080123: 1784 To upgrade to -current after this date, you must be running 1785 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1786 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1787 178820071128: 1789 The ADAPTIVE_GIANT kernel option has been retired because its 1790 functionality is the default now. 1791 179220071118: 1793 The AT keyboard emulation of sunkbd(4) has been turned on 1794 by default. In order to make the special symbols of the Sun 1795 keyboards driven by sunkbd(4) work under X these now have 1796 to be configured the same way as Sun USB keyboards driven 1797 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1798 1799 Option "XkbLayout" "us" 1800 Option "XkbRules" "xorg" 1801 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1802 180320071024: 1804 It has been decided that it is desirable to provide ABI 1805 backwards compatibility to the FreeBSD 4/5/6 versions of the 1806 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1807 broken with the introduction of PCI domain support (see the 1808 20070930 entry). Unfortunately, this required the ABI of 1809 PCIOCGETCONF to be broken again in order to be able to 1810 provide backwards compatibility to the old version of that 1811 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1812 again. As for prominent ports this affects neither pciutils 1813 nor xorg-server this time, the hal port needs to be rebuilt 1814 however. 1815 181620071020: 1817 The misnamed kthread_create() and friends have been renamed 1818 to kproc_create() etc. Many of the callers already 1819 used kproc_start().. 1820 I will return kthread_create() and friends in a while 1821 with implementations that actually create threads, not procs. 1822 Renaming corresponds with version 800002. 1823 182420071010: 1825 RELENG_7 branched. 1826 1827COMMON ITEMS: 1828 1829 General Notes 1830 ------------- 1831 Avoid using make -j when upgrading. While generally safe, there are 1832 sometimes problems using -j to upgrade. If your upgrade fails with 1833 -j, please try again without -j. From time to time in the past there 1834 have been problems using -j with buildworld and/or installworld. This 1835 is especially true when upgrading between "distant" versions (eg one 1836 that cross a major release boundary or several minor releases, or when 1837 several months have passed on the -current branch). 1838 1839 Sometimes, obscure build problems are the result of environment 1840 poisoning. This can happen because the make utility reads its 1841 environment when searching for values for global variables. To run 1842 your build attempts in an "environmental clean room", prefix all make 1843 commands with 'env -i '. See the env(1) manual page for more details. 1844 1845 When upgrading from one major version to another it is generally best 1846 to upgrade to the latest code in the currently installed branch first, 1847 then do an upgrade to the new branch. This is the best-tested upgrade 1848 path, and has the highest probability of being successful. Please try 1849 this approach before reporting problems with a major version upgrade. 1850 1851 When upgrading a live system, having a root shell around before 1852 installing anything can help undo problems. Not having a root shell 1853 around can lead to problems if pam has changed too much from your 1854 starting point to allow continued authentication after the upgrade. 1855 1856 ZFS notes 1857 --------- 1858 When upgrading the boot ZFS pool to a new version, always follow 1859 these two steps: 1860 1861 1.) recompile and reinstall the ZFS boot loader and boot block 1862 (this is part of "make buildworld" and "make installworld") 1863 1864 2.) update the ZFS boot block on your boot drive 1865 1866 The following example updates the ZFS boot block on the first 1867 partition (freebsd-boot) of a GPT partitioned drive ad0: 1868 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 1869 1870 Non-boot pools do not need these updates. 1871 1872 To build a kernel 1873 ----------------- 1874 If you are updating from a prior version of FreeBSD (even one just 1875 a few days old), you should follow this procedure. It is the most 1876 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1877 1878 make kernel-toolchain 1879 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1880 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1881 1882 To test a kernel once 1883 --------------------- 1884 If you just want to boot a kernel once (because you are not sure 1885 if it works, or if you want to boot a known bad kernel to provide 1886 debugging information) run 1887 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1888 nextboot -k testkernel 1889 1890 To just build a kernel when you know that it won't mess you up 1891 -------------------------------------------------------------- 1892 This assumes you are already running a CURRENT system. Replace 1893 ${arch} with the architecture of your machine (e.g. "i386", 1894 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1895 1896 cd src/sys/${arch}/conf 1897 config KERNEL_NAME_HERE 1898 cd ../compile/KERNEL_NAME_HERE 1899 make depend 1900 make 1901 make install 1902 1903 If this fails, go to the "To build a kernel" section. 1904 1905 To rebuild everything and install it on the current system. 1906 ----------------------------------------------------------- 1907 # Note: sometimes if you are running current you gotta do more than 1908 # is listed here if you are upgrading from a really old current. 1909 1910 <make sure you have good level 0 dumps> 1911 make buildworld 1912 make kernel KERNCONF=YOUR_KERNEL_HERE 1913 [1] 1914 <reboot in single user> [3] 1915 mergemaster -p [5] 1916 make installworld 1917 mergemaster -i [4] 1918 make delete-old [6] 1919 <reboot> 1920 1921 To cross-install current onto a separate partition 1922 -------------------------------------------------- 1923 # In this approach we use a separate partition to hold 1924 # current's root, 'usr', and 'var' directories. A partition 1925 # holding "/", "/usr" and "/var" should be about 2GB in 1926 # size. 1927 1928 <make sure you have good level 0 dumps> 1929 <boot into -stable> 1930 make buildworld 1931 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1932 <maybe newfs current's root partition> 1933 <mount current's root partition on directory ${CURRENT_ROOT}> 1934 make installworld DESTDIR=${CURRENT_ROOT} 1935 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1936 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1937 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1938 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1939 <reboot into current> 1940 <do a "native" rebuild/install as described in the previous section> 1941 <maybe install compatibility libraries from ports/misc/compat*> 1942 <reboot> 1943 1944 1945 To upgrade in-place from stable to current 1946 ---------------------------------------------- 1947 <make sure you have good level 0 dumps> 1948 make buildworld [9] 1949 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1950 [1] 1951 <reboot in single user> [3] 1952 mergemaster -p [5] 1953 make installworld 1954 mergemaster -i [4] 1955 make delete-old [6] 1956 <reboot> 1957 1958 Make sure that you've read the UPDATING file to understand the 1959 tweaks to various things you need. At this point in the life 1960 cycle of current, things change often and you are on your own 1961 to cope. The defaults can also change, so please read ALL of 1962 the UPDATING entries. 1963 1964 Also, if you are tracking -current, you must be subscribed to 1965 freebsd-current@freebsd.org. Make sure that before you update 1966 your sources that you have read and understood all the recent 1967 messages there. If in doubt, please track -stable which has 1968 much fewer pitfalls. 1969 1970 [1] If you have third party modules, such as vmware, you 1971 should disable them at this point so they don't crash your 1972 system on reboot. 1973 1974 [3] From the bootblocks, boot -s, and then do 1975 fsck -p 1976 mount -u / 1977 mount -a 1978 cd src 1979 adjkerntz -i # if CMOS is wall time 1980 Also, when doing a major release upgrade, it is required that 1981 you boot into single user mode to do the installworld. 1982 1983 [4] Note: This step is non-optional. Failure to do this step 1984 can result in a significant reduction in the functionality of the 1985 system. Attempting to do it by hand is not recommended and those 1986 that pursue this avenue should read this file carefully, as well 1987 as the archives of freebsd-current and freebsd-hackers mailing lists 1988 for potential gotchas. The -U option is also useful to consider. 1989 See mergemaster(8) for more information. 1990 1991 [5] Usually this step is a noop. However, from time to time 1992 you may need to do this if you get unknown user in the following 1993 step. It never hurts to do it all the time. You may need to 1994 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1995 install) after the buildworld before this step if you last updated 1996 from current before 20130425 or from -stable before 20130430. 1997 1998 [6] This only deletes old files and directories. Old libraries 1999 can be deleted by "make delete-old-libs", but you have to make 2000 sure that no program is using those libraries anymore. 2001 2002 [8] In order to have a kernel that can run the 4.x binaries needed to 2003 do an installworld, you must include the COMPAT_FREEBSD4 option in 2004 your kernel. Failure to do so may leave you with a system that is 2005 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2006 required to run the 5.x binaries on more recent kernels. And so on 2007 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2008 2009 Make sure that you merge any new devices from GENERIC since the 2010 last time you updated your kernel config file. 2011 2012 [9] When checking out sources, you must include the -P flag to have 2013 cvs prune empty directories. 2014 2015 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2016 "?=" instead of the "=" assignment operator, so that buildworld can 2017 override the CPUTYPE if it needs to. 2018 2019 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2020 not on the command line, or in /etc/make.conf. buildworld will 2021 warn if it is improperly defined. 2022FORMAT: 2023 2024This file contains a list, in reverse chronological order, of major 2025breakages in tracking -current. It is not guaranteed to be a complete 2026list of such breakages, and only contains entries since October 10, 2007. 2027If you need to see UPDATING entries from before that date, you will need 2028to fetch an UPDATING file from an older FreeBSD release. 2029 2030Copyright information: 2031 2032Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2033 2034Redistribution, publication, translation and use, with or without 2035modification, in full or in part, in any form or format of this 2036document are permitted without further permission from the author. 2037 2038THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2039IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2040WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2041DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2042INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2043(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2044SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2045HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2046STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2047IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2048POSSIBILITY OF SUCH DAMAGE. 2049 2050Contact Warner Losh if you have any questions about your use of 2051this document. 2052 2053$FreeBSD: stable/10/UPDATING 260940 2014-01-20 22:32:23Z gjb $ 2054