UPDATING revision 263838
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 19 2020140321: 21 Clang and llvm have been upgraded to 3.4 release. Please note that 22 clang 3.4 now defaults to DWARF4 debug information format when you 23 specify -g. Since kgdb(1) only supports DWARF2, you should update any 24 customized kernel configurations which include debug information to 25 explicitly use -gdwarf-2, e.g: 26 27 makeoptions DEBUG=-gdwarf-2 28 29 This has already been applied to the appropriate GENERIC configuration 30 files, so if you inherit from those, no changes are required. 31 3220140306: 33 If a Makefile in a tests/ directory was auto-generating a Kyuafile 34 instead of providing an explicit one, this would prevent such 35 Makefile from providing its own Kyuafile in the future during 36 NO_CLEAN builds. This has been fixed in the Makefiles but manual 37 intervention is needed to clean an objdir if you use NO_CLEAN: 38 # find /usr/obj -name Kyuafile | xargs rm -f 39 4020140303: 41 OpenSSH will now ignore errors caused by kernel lacking of Capsicum 42 capability mode support. Please note that enabling the feature in 43 kernel is still highly recommended. 44 4520140227: 46 OpenSSH is now built with sandbox support, and will use sandbox as 47 the default privilege separation method. This requires Capsicum 48 capability mode support in kernel. 49 5020140216: 51 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 52 been deprecated and will not be part of FreeBSD 11.0 and later 53 releases. If you use this driver, please consider switching to 54 the nfe(4) driver instead. 55 5620140120: 57 10.0-RELEASE. 58 5920131216: 60 The behavior of gss_pseudo_random() for the krb5 mechanism 61 has changed, for applications requesting a longer random string 62 than produced by the underlying enctype's pseudo-random() function. 63 In particular, the random string produced from a session key of 64 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 65 be different at the 17th octet and later, after this change. 66 The counter used in the PRF+ construction is now encoded as a 67 big-endian integer in accordance with RFC 4402. 68 __FreeBSD_version is bumped to 1000701. 69 7020131108: 71 The WITHOUT_ATF build knob has been removed and its functionality 72 has been subsumed into the more generic WITHOUT_TESTS. If you were 73 using the former to disable the build of the ATF libraries, you 74 should change your settings to use the latter. 75 7620131031: 77 The default version of mtree is nmtree which is obtained from 78 NetBSD. The output is generally the same, but may vary 79 slightly. If you found you need identical output adding 80 "-F freebsd9" to the command line should do the trick. For the 81 time being, the old mtree is available as fmtree. 82 8320131014: 84 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 85 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 86 1.1.4_8 and verify bsdyml not linked in, before running "make 87 delete-old-libs": 88 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 89 or 90 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 91 9220131010: 93 The rc.d/jail script has been updated to support jail(8) 94 configuration file. The "jail_<jname>_*" rc.conf(5) variables 95 for per-jail configuration are automatically converted to 96 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 97 This is transparently backward compatible. See below about some 98 incompatibilities and rc.conf(5) manual page for more details. 99 100 These variables are now deprecated in favor of jail(8) configuration 101 file. One can use "rc.d/jail config <jname>" command to generate 102 a jail(8) configuration file in /var/run/jail.<jname>.conf without 103 running the jail(8) utility. The default pathname of the 104 configuration file is /etc/jail.conf and can be specified by 105 using $jail_conf or $jail_<jname>_conf variables. 106 107 Please note that jail_devfs_ruleset accepts an integer at 108 this moment. Please consider to rewrite the ruleset name 109 with an integer. 110 11120130930: 112 BIND has been removed from the base system. If all you need 113 is a local resolver, simply enable and start the local_unbound 114 service instead. Otherwise, several versions of BIND are 115 available in the ports tree. The dns/bind99 port is one example. 116 117 With this change, nslookup(1) and dig(1) are no longer in the base 118 system. Users should instead use host(1) and drill(1) which are 119 in the base system. Alternatively, nslookup and dig can 120 be obtained by installing the dns/bind-tools port. 121 12220130916: 123 With the addition of unbound(8), a new unbound user is now 124 required during installworld. "mergemaster -p" can be used to 125 add the user prior to installworld, as documented in the handbook. 126 12720130911: 128 OpenSSH is now built with DNSSEC support, and will by default 129 silently trust signed SSHFP records. This can be controlled with 130 the VerifyHostKeyDNS client configuration setting. DNSSEC support 131 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 132 13320130906: 134 The GNU Compiler Collection and C++ standard library (libstdc++) 135 are no longer built by default on platforms where clang is the system 136 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 137 options in src.conf. 138 13920130905: 140 The PROCDESC kernel option is now part of the GENERIC kernel 141 configuration and is required for the rwhod(8) to work. 142 If you are using custom kernel configuration, you should include 143 'options PROCDESC'. 144 14520130905: 146 The API and ABI related to the Capsicum framework was modified 147 in backward incompatible way. The userland libraries and programs 148 have to be recompiled to work with the new kernel. This includes the 149 following libraries and programs, but the whole buildworld is 150 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 151 kdump, procstat, rwho, rwhod, uniq. 152 15320130903: 154 AES-NI intrinsic support has been added to gcc. The AES-NI module 155 has been updated to use this support. A new gcc is required to build 156 the aesni module on both i386 and amd64. 157 15820130821: 159 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 160 Thus "device padlock_rng" and "device rdrand_rng" should be 161 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 162 16320130813: 164 WITH_ICONV has been split into two feature sets. WITH_ICONV now 165 enables just the iconv* functionality and is now on by default. 166 WITH_LIBICONV_COMPAT enables the libiconv api and link time 167 compatability. Set WITHOUT_ICONV to build the old way. 168 If you have been using WITH_ICONV before, you will very likely 169 need to turn on WITH_LIBICONV_COMPAT. 170 17120130806: 172 INVARIANTS option now enables DEBUG for code with OpenSolaris and 173 Illumos origin, including ZFS. If you have INVARIANTS in your 174 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 175 explicitly. 176 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 177 locks if WITNESS option was set. Because that generated a lot of 178 witness(9) reports and all of them were believed to be false 179 positives, this is no longer done. New option OPENSOLARIS_WITNESS 180 can be used to achieve the previous behavior. 181 18220130806: 183 Timer values in IPv6 data structures now use time_uptime instead 184 of time_second. Although this is not a user-visible functional 185 change, userland utilities which directly use them---ndp(8), 186 rtadvd(8), and rtsold(8) in the base system---need to be updated 187 to r253970 or later. 188 18920130802: 190 find -delete can now delete the pathnames given as arguments, 191 instead of only files found below them or if the pathname did 192 not contain any slashes. Formerly, the following error message 193 would result: 194 195 find: -delete: <path>: relative path potentially not safe 196 197 Deleting the pathnames given as arguments can be prevented 198 without error messages using -mindepth 1 or by changing 199 directory and passing "." as argument to find. This works in the 200 old as well as the new version of find. 201 20220130726: 203 Behavior of devfs rules path matching has been changed. 204 Pattern is now always matched against fully qualified devfs 205 path and slash characters must be explicitly matched by 206 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 207 subdirectories must be reviewed. 208 20920130716: 210 The default ARM ABI has changed to the ARM EABI. The old ABI is 211 incompatible with the ARM EABI and all programs and modules will 212 need to be rebuilt to work with a new kernel. 213 214 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 215 216 NOTE: Support for the old ABI will be removed in the future and 217 users are advised to upgrade. 218 21920130709: 220 pkg_install has been disconnected from the build if you really need it 221 you should add WITH_PKGTOOLS in your src.conf(5). 222 22320130709: 224 Most of network statistics structures were changed to be able 225 keep 64-bits counters. Thus all tools, that work with networking 226 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 227 22820130629: 229 Fix targets that run multiple make's to use && rather than ; 230 so that subsequent steps depend on success of previous. 231 232 NOTE: if building 'universe' with -j* on stable/8 or stable/9 233 it would be better to start the build using bmake, to avoid 234 overloading the machine. 235 23620130618: 237 Fix a bug that allowed a tracing process (e.g. gdb) to write 238 to a memory-mapped file in the traced process's address space 239 even if neither the traced process nor the tracing process had 240 write access to that file. 241 24220130615: 243 CVS has been removed from the base system. An exact copy 244 of the code is available from the devel/cvs port. 245 24620130613: 247 Some people report the following error after the switch to bmake: 248 249 make: illegal option -- J 250 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 251 ... 252 *** [buildworld] Error code 2 253 254 this likely due to an old instance of make in 255 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 256 which src/Makefile will use that blindly, if it exists, so if 257 you see the above error: 258 259 rm -rf `make -V MAKEPATH` 260 261 should resolve it. 262 26320130516: 264 Use bmake by default. 265 Whereas before one could choose to build with bmake via 266 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 267 make. The goal is to remove these knobs for 10-RELEASE. 268 269 It is worth noting that bmake (like gmake) treats the command 270 line as the unit of failure, rather than statements within the 271 command line. Thus '(cd some/where && dosomething)' is safer 272 than 'cd some/where; dosomething'. The '()' allows consistent 273 behavior in parallel build. 274 27520130429: 276 Fix a bug that allows NFS clients to issue READDIR on files. 277 27820130426: 279 The WITHOUT_IDEA option has been removed because 280 the IDEA patent expired. 281 28220130426: 283 The sysctl which controls TRIM support under ZFS has been renamed 284 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 285 enabled by default. 286 28720130425: 288 The mergemaster command now uses the default MAKEOBJDIRPREFIX 289 rather than creating it's own in the temporary directory in 290 order allow access to bootstrapped versions of tools such as 291 install and mtree. When upgrading from version of FreeBSD where 292 the install command does not support -l, you will need to 293 install a new mergemaster command if mergemaster -p is required. 294 This can be accomplished with the command (cd src/usr.sbin/mergemaster 295 && make install). 296 29720130404: 298 Legacy ATA stack, disabled and replaced by new CAM-based one since 299 FreeBSD 9.0, completely removed from the sources. Kernel modules 300 atadisk and atapi*, user-level tools atacontrol and burncd are 301 removed. Kernel option `options ATA_CAM` is now permanently enabled 302 and removed. 303 30420130319: 305 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 306 and socketpair(2). Software, in particular Kerberos, may 307 automatically detect and use these during building. The resulting 308 binaries will not work on older kernels. 309 31020130308: 311 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 312 information, see the respective 20130304 entry). 313 31420130304: 315 Recent commits to callout(9) changed the size of struct callout, 316 so the KBI is probably heavily disturbed. Also, some functions 317 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 318 by macros. Every kernel module using it won't load, so rebuild 319 is requested. 320 321 The ctl device has been re-enabled in GENERIC for i386 and amd64, 322 but does not initialize by default (because of the new CTL_DISABLE 323 option) to save memory. To re-enable it, remove the CTL_DISABLE 324 option from the kernel config file or set kern.cam.ctl.disable=0 325 in /boot/loader.conf. 326 32720130301: 328 The ctl device has been disabled in GENERIC for i386 and amd64. 329 This was done due to the extra memory being allocated at system 330 initialisation time by the ctl driver which was only used if 331 a CAM target device was created. This makes a FreeBSD system 332 unusable on 128MB or less of RAM. 333 33420130208: 335 A new compression method (lz4) has been merged to -HEAD. Please 336 refer to zpool-features(7) for more information. 337 338 Please refer to the "ZFS notes" section of this file for information 339 on upgrading boot ZFS pools. 340 34120130129: 342 A BSD-licensed patch(1) variant has been added and is installed 343 as bsdpatch, being the GNU version the default patch. 344 To inverse the logic and use the BSD-licensed one as default, 345 while having the GNU version installed as gnupatch, rebuild 346 and install world with the WITH_BSD_PATCH knob set. 347 34820130121: 349 Due to the use of the new -l option to install(1) during build 350 and install, you must take care not to directly set the INSTALL 351 make variable in your /etc/make.conf, /etc/src.conf, or on the 352 command line. If you wish to use the -C flag for all installs 353 you may be able to add INSTALL+=-C to /etc/make.conf or 354 /etc/src.conf. 355 35620130118: 357 The install(1) option -M has changed meaning and now takes an 358 argument that is a file or path to append logs to. In the 359 unlikely event that -M was the last option on the command line 360 and the command line contained at least two files and a target 361 directory the first file will have logs appended to it. The -M 362 option served little practical purpose in the last decade so its 363 use is expected to be extremely rare. 364 36520121223: 366 After switching to Clang as the default compiler some users of ZFS 367 on i386 systems started to experience stack overflow kernel panics. 368 Please consider using 'options KSTACK_PAGES=4' in such configurations. 369 37020121222: 371 GEOM_LABEL now mangles label names read from file system metadata. 372 Mangling affect labels containing spaces, non-printable characters, 373 '%' or '"'. Device names in /etc/fstab and other places may need to 374 be updated. 375 37620121217: 377 By default, only the 10 most recent kernel dumps will be saved. To 378 restore the previous behaviour (no limit on the number of kernel dumps 379 stored in the dump directory) add the following line to /etc/rc.conf: 380 381 savecore_flags="" 382 38320121201: 384 With the addition of auditdistd(8), a new auditdistd user is now 385 required during installworld. "mergemaster -p" can be used to 386 add the user prior to installworld, as documented in the handbook. 387 38820121117: 389 The sin6_scope_id member variable in struct sockaddr_in6 is now 390 filled by the kernel before passing the structure to the userland via 391 sysctl or routing socket. This means the KAME-specific embedded scope 392 id in sin6_addr.s6_addr[2] is always cleared in userland application. 393 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 394 __FreeBSD_version is bumped to 1000025. 395 39620121105: 397 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 398 This means that the world and kernel will be compiled with clang 399 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 400 and /usr/bin/cpp. To disable this behavior and revert to building 401 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 402 of current may need to bootstrap WITHOUT_CLANG first if the clang 403 build fails (its compatibility window doesn't extend to the 9 stable 404 branch point). 405 40620121102: 407 The IPFIREWALL_FORWARD kernel option has been removed. Its 408 functionality now turned on by default. 409 41020121023: 411 The ZERO_COPY_SOCKET kernel option has been removed and 412 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 413 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 414 mechanism which is not safe and may result in kernel crashes. 415 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 416 driver supports disposeable external page sized mbuf storage. 417 Proper replacements for both zero-copy mechanisms are under 418 consideration and will eventually lead to complete removal 419 of the two kernel options. 420 42120121023: 422 The IPv4 network stack has been converted to network byte 423 order. The following modules need to be recompiled together 424 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 425 pf(4), ipfw(4), ng_ipfw(4), stf(4). 426 42720121022: 428 Support for non-MPSAFE filesystems was removed from VFS. The 429 VFS_VERSION was bumped, all filesystem modules shall be 430 recompiled. 431 43220121018: 433 All the non-MPSAFE filesystems have been disconnected from 434 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 435 portalfs, smbfs, xfs. 436 43720121016: 438 The interface cloning API and ABI has changed. The following 439 modules need to be recompiled together with kernel: 440 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 441 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 442 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 443 44420121015: 445 The sdhci driver was split in two parts: sdhci (generic SD Host 446 Controller logic) and sdhci_pci (actual hardware driver). 447 No kernel config modifications are required, but if you 448 load sdhc as a module you must switch to sdhci_pci instead. 449 45020121014: 451 Import the FUSE kernel and userland support into base system. 452 45320121013: 454 The GNU sort(1) program has been removed since the BSD-licensed 455 sort(1) has been the default for quite some time and no serious 456 problems have been reported. The corresponding WITH_GNU_SORT 457 knob has also gone. 458 45920121006: 460 The pfil(9) API/ABI for AF_INET family has been changed. Packet 461 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 462 with new kernel. 463 46420121001: 465 The net80211(4) ABI has been changed to allow for improved driver 466 PS-POLL and power-save support. All wireless drivers need to be 467 recompiled to work with the new kernel. 468 46920120913: 470 The random(4) support for the VIA hardware random number 471 generator (`PADLOCK') is no longer enabled unconditionally. 472 Add the padlock_rng device in the custom kernel config if 473 needed. The GENERIC kernels on i386 and amd64 do include the 474 device, so the change only affects the custom kernel 475 configurations. 476 47720120908: 478 The pf(4) packet filter ABI has been changed. pfctl(8) and 479 snmp_pf module need to be recompiled to work with new kernel. 480 48120120828: 482 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 483 to -HEAD. Pools that have empty_bpobj in active state can not be 484 imported read-write with ZFS implementations that do not support 485 this feature. For more information read the zpool-features(5) 486 manual page. 487 48820120727: 489 The sparc64 ZFS loader has been changed to no longer try to auto- 490 detect ZFS providers based on diskN aliases but now requires these 491 to be explicitly listed in the OFW boot-device environment variable. 492 49320120712: 494 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 495 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 496 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 497 49820120712: 499 The following sysctls and tunables have been renamed for consistency 500 with other variables: 501 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 502 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 503 50420120628: 505 The sort utility has been replaced with BSD sort. For now, GNU sort 506 is also available as "gnusort" or the default can be set back to 507 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 508 installed as "bsdsort". 509 51020120611: 511 A new version of ZFS (pool version 5000) has been merged to -HEAD. 512 Starting with this version the old system of ZFS pool versioning 513 is superseded by "feature flags". This concept enables forward 514 compatibility against certain future changes in functionality of ZFS 515 pools. The first read-only compatible "feature flag" for ZFS pools 516 is named "com.delphix:async_destroy". For more information 517 read the new zpool-features(5) manual page. 518 Please refer to the "ZFS notes" section of this file for information 519 on upgrading boot ZFS pools. 520 52120120417: 522 The malloc(3) implementation embedded in libc now uses sources imported 523 as contrib/jemalloc. The most disruptive API change is to 524 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 525 delete it prior to installworld, and optionally re-create it using the 526 new format after rebooting. See malloc.conf(5) for details 527 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 528 NAMESPACE section). 529 53020120328: 531 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 532 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 533 now spelled mips. This is to aid compatibility with third-party 534 software that expects this naming scheme in uname(3). Little-endian 535 settings are unchanged. If you are updating a big-endian mips64 machine 536 from before this change, you may need to set MACHINE_ARCH=mips64 in 537 your environment before the new build system will recognize your machine. 538 53920120306: 540 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 541 platforms. 542 54320120229: 544 Now unix domain sockets behave "as expected" on nullfs(5). Previously 545 nullfs(5) did not pass through all behaviours to the underlying layer, 546 as a result if we bound to a socket on the lower layer we could connect 547 only to the lower path; if we bound to the upper layer we could connect 548 only to the upper path. The new behavior is one can connect to both the 549 lower and the upper paths regardless what layer path one binds to. 550 55120120211: 552 The getifaddrs upgrade path broken with 20111215 has been restored. 553 If you have upgraded in between 20111215 and 20120209 you need to 554 recompile libc again with your kernel. You still need to recompile 555 world to be able to configure CARP but this restriction already 556 comes from 20111215. 557 55820120114: 559 The set_rcvar() function has been removed from /etc/rc.subr. All 560 base and ports rc.d scripts have been updated, so if you have a 561 port installed with a script in /usr/local/etc/rc.d you can either 562 hand-edit the rcvar= line, or reinstall the port. 563 564 An easy way to handle the mass-update of /etc/rc.d: 565 rm /etc/rc.d/* && mergemaster -i 566 56720120109: 568 panic(9) now stops other CPUs in the SMP systems, disables interrupts 569 on the current CPU and prevents other threads from running. 570 This behavior can be reverted using the kern.stop_scheduler_on_panic 571 tunable/sysctl. 572 The new behavior can be incompatible with kern.sync_on_panic. 573 57420111215: 575 The carp(4) facility has been changed significantly. Configuration 576 of the CARP protocol via ifconfig(8) has changed, as well as format 577 of CARP events submitted to devd(8) has changed. See manual pages 578 for more information. The arpbalance feature of carp(4) is currently 579 not supported anymore. 580 581 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 582 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 583 need to be recompiled. 584 58520111122: 586 The acpi_wmi(4) status device /dev/wmistat has been renamed to 587 /dev/wmistat0. 588 58920111108: 590 The option VFS_ALLOW_NONMPSAFE option has been added in order to 591 explicitely support non-MPSAFE filesystems. 592 It is on by default for all supported platform at this present 593 time. 594 59520111101: 596 The broken amd(4) driver has been replaced with esp(4) in the amd64, 597 i386 and pc98 GENERIC kernel configuration files. 598 59920110930: 600 sysinstall has been removed 601 60220110923: 603 The stable/9 branch created in subversion. This corresponds to the 604 RELENG_9 branch in CVS. 605 60620110913: 607 This commit modifies vfs_register() so that it uses a hash 608 calculation to set vfc_typenum, which is enabled by default. 609 The first time a system is booted after this change, the 610 vfc_typenum values will change for all file systems. The 611 main effect of this is a change to the NFS server file handles 612 for file systems that use vfc_typenum in their fsid, such as ZFS. 613 It will, however, prevent vfc_typenum from changing when file 614 systems are loaded in a different order for subsequent reboots. 615 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 616 until you are ready to remount all NFS clients after a reboot. 617 61820110828: 619 Bump the shared library version numbers for libraries that 620 do not use symbol versioning, have changed the ABI compared 621 to stable/8 and which shared library version was not bumped. 622 Done as part of 9.0-RELEASE cycle. 623 62420110815: 625 During the merge of Capsicum features, the fget(9) KPI was modified. 626 This may require the rebuilding of out-of-tree device drivers -- 627 issues have been reported specifically with the nVidia device driver. 628 __FreeBSD_version is bumped to 900041. 629 630 Also, there is a period between 20110811 and 20110814 where the 631 special devices /dev/{stdin,stdout,stderr} did not work correctly. 632 Building world from a kernel during that window may not work. 633 63420110628: 635 The packet filter (pf) code has been updated to OpenBSD 4.5. 636 You need to update userland tools to be in sync with kernel. 637 This update breaks backward compatibility with earlier pfsync(4) 638 versions. Care must be taken when updating redundant firewall setups. 639 64020110608: 641 The following sysctls and tunables are retired on x86 platforms: 642 machdep.hlt_cpus 643 machdep.hlt_logical_cpus 644 The following sysctl is retired: 645 machdep.hyperthreading_allowed 646 The sysctls were supposed to provide a way to dynamically offline and 647 online selected CPUs on x86 platforms, but the implementation has not 648 been reliable especially with SCHED_ULE scheduler. 649 machdep.hyperthreading_allowed tunable is still available to ignore 650 hyperthreading CPUs at OS level. 651 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 652 where X is an APIC ID of a CPU. Be advised, though, that disabling 653 CPUs in non-uniform fashion will result in non-uniform topology and 654 may lead to sub-optimal system performance with SCHED_ULE, which is 655 a default scheduler. 656 65720110607: 658 cpumask_t type is retired and cpuset_t is used in order to describe 659 a mask of CPUs. 660 66120110531: 662 Changes to ifconfig(8) for dynamic address family detection mandate 663 that you are running a kernel of 20110525 or later. Make sure to 664 follow the update procedure to boot a new kernel before installing 665 world. 666 66720110513: 668 Support for sun4v architecture is officially dropped 669 67020110503: 671 Several KPI breaking changes have been committed to the mii(4) layer, 672 the PHY drivers and consequently some Ethernet drivers using mii(4). 673 This means that miibus.ko and the modules of the affected Ethernet 674 drivers need to be recompiled. 675 676 Note to kernel developers: Given that the OUI bit reversion problem 677 was fixed as part of these changes all mii(4) commits related to OUIs, 678 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 679 handling, no longer can be merged verbatim to stable/8 and previous 680 branches. 681 68220110430: 683 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 684 into their kernel configurations along with 'device pci'. 685 68620110427: 687 The default NFS client is now the new NFS client, so fstype "newnfs" 688 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 689 Although mounts via fstype "nfs" will usually work without userland 690 changes, it is recommended that the mount(8) and mount_nfs(8) 691 commands be rebuilt from sources and that a link to mount_nfs called 692 mount_oldnfs be created. The new client is compiled into the 693 kernel with "options NFSCL" and this is needed for diskless root 694 file systems. The GENERIC kernel configs have been changed to use 695 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 696 To use the regular/old client, you can "mount -t oldnfs ...". For 697 a diskless root file system, you must also include a line like: 698 699 vfs.root.mountfrom="oldnfs:" 700 701 in the boot/loader.conf on the root fs on the NFS server to make 702 a diskless root fs use the old client. 703 70420110424: 705 The GENERIC kernels for all architectures now default to the new 706 CAM-based ATA stack. It means that all legacy ATA drivers were 707 removed and replaced by respective CAM drivers. If you are using 708 ATA device names in /etc/fstab or other places, make sure to update 709 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 710 where 'Y's are the sequential numbers starting from zero for each type 711 in order of detection, unless configured otherwise with tunables, 712 see cam(4)). There will be symbolic links created in /dev/ to map 713 old adX devices to the respective adaY. They should provide basic 714 compatibility for file systems mounting in most cases, but they do 715 not support old user-level APIs and do not have respective providers 716 in GEOM. Consider using updated management tools with new device names. 717 718 It is possible to load devices ahci, ata, siis and mvs as modules, 719 but option ATA_CAM should remain in kernel configuration to make ata 720 module work as CAM driver supporting legacy ATA controllers. Device ata 721 still can be used in modular fashion (atacore + ...). Modules atadisk 722 and atapi* are not used and won't affect operation in ATA_CAM mode. 723 Note that to use CAM-based ATA kernel should include CAM devices 724 scbus, pass, da (or explicitly ada), cd and optionally others. All of 725 them are parts of the cam module. 726 727 ataraid(4) functionality is now supported by the RAID GEOM class. 728 To use it you can load geom_raid kernel module and use graid(8) tool 729 for management. Instead of /dev/arX device names, use /dev/raid/rX. 730 731 No kernel config options or code have been removed, so if a problem 732 arises, please report it and optionally revert to the old ATA stack. 733 In order to do it you can remove from the kernel config: 734 options ATA_CAM 735 device ahci 736 device mvs 737 device siis 738 , and instead add back: 739 device atadisk # ATA disk drives 740 device ataraid # ATA RAID drives 741 device atapicd # ATAPI CDROM drives 742 device atapifd # ATAPI floppy drives 743 device atapist # ATAPI tape drives 744 74520110423: 746 The default NFS server has been changed to the new server, which 747 was referred to as the experimental server. If you need to switch 748 back to the old NFS server, you must now put the "-o" option on 749 both the mountd and nfsd commands. This can be done using the 750 mountd_flags and nfs_server_flags rc.conf variables until an 751 update to the rc scripts is committed, which is coming soon. 752 75320110418: 754 The GNU Objective-C runtime library (libobjc), and other Objective-C 755 related components have been removed from the base system. If you 756 require an Objective-C library, please use one of the available ports. 757 75820110331: 759 ath(4) has been split into bus- and device- modules. if_ath contains 760 the HAL, the TX rate control and the network device code. if_ath_pci 761 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 762 contains the AHB glue. Users need to load both if_ath_pci and if_ath 763 in order to use ath on everything else. 764 765 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 766 need to load if_ath and if_ath_pci for ath(4) operation. 767 76820110314: 769 As part of the replacement of sysinstall, the process of building 770 release media has changed significantly. For details, please re-read 771 release(7), which has been updated to reflect the new build process. 772 77320110218: 774 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 775 is the last available version under GPLv2. It brings a number of new 776 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 777 4.1 and SSE 4.2), better support for powerpc64, a number of new 778 directives, and lots of other small improvements. See the ChangeLog 779 file in contrib/binutils for the full details. 780 78120110218: 782 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 783 compliant, and will now use half of hash for authentication. 784 This will break interoperability with all stacks (including all 785 actual FreeBSD versions) who implement 786 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 787 authentication). 788 The only workaround with such peers is to use another HMAC 789 algorithm for IPsec ("phase 2") authentication. 790 79120110207: 792 Remove the uio_yield prototype and symbol. This function has 793 been misnamed since it was introduced and should not be 794 globally exposed with this name. The equivalent functionality 795 is now available using kern_yield(curthread->td_user_pri). 796 The function remains undocumented. 797 79820110112: 799 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 800 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 801 for scalar sysctls is defined but disabled. Code that needs 802 UQUAD to pass the type checking that must compile on older 803 systems where the define is not present can check against 804 __FreeBSD_version >= 900030. 805 806 The system dialog(1) has been replaced with a new version previously 807 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 808 with the previous version, but the libdialog associated with it has 809 a largely incompatible API. As such, the original version of libdialog 810 will be kept temporarily as libodialog, until its base system consumers 811 are replaced or updated. Bump __FreeBSD_version to 900030. 812 81320110103: 814 If you are trying to run make universe on a -stable system, and you get 815 the following warning: 816 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 817 unknown. config(8) likely too old." 818 or something similar to it, then you must upgrade your -stable system 819 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 820 stable/8) or build the config from the latest stable/8 branch and 821 install it on your system. 822 823 Prior to this date, building a current universe on 8-stable system from 824 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 825 error in the first kernel build phase. A new config on those old 826 systems will fix that problem for older versions of -current. 827 82820101228: 829 The TCP stack has been modified to allow Khelp modules to interact with 830 it via helper hook points and store per-connection data in the TCP 831 control block. Bump __FreeBSD_version to 900029. User space tools that 832 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 833 be recompiled. 834 83520101114: 836 Generic IEEE 802.3 annex 31B full duplex flow control support has been 837 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 838 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 839 to take advantage of it instead of using custom implementations. This 840 means that these drivers now no longer unconditionally advertise 841 support for flow control but only do so if flow control is a selected 842 media option. This was implemented in the generic support that way in 843 order to allow flow control to be switched on and off via ifconfig(8) 844 with the PHY specific default to typically off in order to protect 845 from unwanted effects. Consequently, if you used flow control with 846 one of the above mentioned drivers you now need to explicitly enable 847 it, for example via: 848 ifconfig bge0 media auto mediaopt flowcontrol 849 850 Along with the above mentioned changes generic support for setting 851 1000baseT master mode also has been added and brgphy(4), ciphy(4), 852 e1000phy(4) as well as ip1000phy(4) have been converted to take 853 advantage of it. This means that these drivers now no longer take the 854 link0 parameter for selecting master mode but the master media option 855 has to be used instead, for example like in the following: 856 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 857 858 Selection of master mode now is also available with all other PHY 859 drivers supporting 1000baseT. 860 86120101111: 862 The TCP stack has received a significant update to add support for 863 modularised congestion control and generally improve the clarity of 864 congestion control decisions. Bump __FreeBSD_version to 900025. User 865 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 866 sockstat) need to be recompiled. 867 86820101002: 869 The man(1) utility has been replaced by a new version that no longer 870 uses /etc/manpath.config. Please consult man.conf(5) for how to 871 migrate local entries to the new format. 872 87320100928: 874 The copyright strings printed by login(1) and sshd(8) at the time of a 875 new connection have been removed to follow other operating systems and 876 upstream sshd. 877 87820100915: 879 A workaround for a fixed ld bug has been removed in kernel code, 880 so make sure that your system ld is built from sources after 881 revision 210245 from 2010-07-19 (r211583 if building head kernel 882 on stable/8, r211584 for stable/7; both from 2010-08-21). 883 A symptom of incorrect ld version is different addresses for 884 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 885 88620100913: 887 The $ipv6_prefer variable in rc.conf(5) has been split into 888 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 889 890 The $ip6addrctl_policy is a variable to choose a pre-defined 891 address selection policy set by ip6addrctl(8). A value 892 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 893 default is "AUTO". 894 895 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 896 flag (see an entry of 20090926) is set on an interface with no 897 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 898 security reason. If you want IPv6 link-local address on all 899 interfaces by default, set this to "YES". 900 901 The old ipv6_prefer="YES" is equivalent to 902 ipv6_activate_all_interfaces="YES" and 903 ip6addrctl_policy="ipv6_prefer". 904 90520100913: 906 DTrace has grown support for userland tracing. Due to this, DTrace is 907 now i386 and amd64 only. 908 dtruss(1) is now installed by default on those systems and a new 909 kernel module is needed for userland tracing: fasttrap. 910 No changes to your kernel config file are necessary to enable 911 userland tracing, but you might consider adding 'STRIP=' and 912 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 913 to have informative userland stack traces in DTrace (ustack). 914 91520100725: 916 The acpi_aiboost(4) driver has been removed in favor of the new 917 aibs(4) driver. You should update your kernel configuration file. 918 91920100722: 920 BSD grep has been imported to the base system and it is built by 921 default. It is completely BSD licensed, highly GNU-compatible, uses 922 less memory than its GNU counterpart and has a small codebase. 923 However, it is slower than its GNU counterpart, which is mostly 924 noticeable for larger searches, for smaller ones it is measurable 925 but not significant. The reason is complex, the most important factor 926 is that we lack a modern and efficient regex library and GNU 927 overcomes this by optimizing the searches internally. Future work 928 on improving the regex performance is planned, for the meantime, 929 users that need better performance, can build GNU grep instead by 930 setting the WITH_GNU_GREP knob. 931 93220100713: 933 Due to the import of powerpc64 support, all existing powerpc kernel 934 configuration files must be updated with a machine directive like this: 935 machine powerpc powerpc 936 937 In addition, an updated config(8) is required to build powerpc kernels 938 after this change. 939 94020100713: 941 A new version of ZFS (version 15) has been merged to -HEAD. 942 This version uses a python library for the following subcommands: 943 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 944 For full functionality of these commands the following port must 945 be installed: sysutils/py-zfs 946 94720100429: 948 'vm_page's are now hashed by physical address to an array of mutexes. 949 Currently this is only used to serialize access to hold_count. Over 950 time the page queue mutex will be peeled away. This changes the size 951 of pmap on every architecture. And requires all callers of vm_page_hold 952 and vm_page_unhold to be updated. 953 95420100402: 955 WITH_CTF can now be specified in src.conf (not recommended, there 956 are some problems with static executables), make.conf (would also 957 affect ports which do not use GNU make and do not override the 958 compile targets) or in the kernel config (via "makeoptions 959 WITH_CTF=yes"). 960 When WITH_CTF was specified there before this was silently ignored, 961 so make sure that WITH_CTF is not used in places which could lead 962 to unwanted behavior. 963 96420100311: 965 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 966 to allow 32-bit compatibility on non-x86 platforms. All kernel 967 configurations on amd64 and ia64 platforms using these options must 968 be modified accordingly. 969 97020100113: 971 The utmp user accounting database has been replaced with utmpx, 972 the user accounting interface standardized by POSIX. 973 Unfortunately the semantics of utmp and utmpx don't match, 974 making it practically impossible to support both interfaces. 975 The user accounting database is used by tools like finger(1), 976 last(1), talk(1), w(1) and ac(8). 977 978 All applications in the base system use utmpx. This means only 979 local binaries (e.g. from the ports tree) may still use these 980 utmp database files. These applications must be rebuilt to make 981 use of utmpx. 982 983 After the system has been upgraded, it is safe to remove the old 984 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 985 assuming their contents is of no importance anymore. Old wtmp 986 databases can only be used by last(1) and ac(8) after they have 987 been converted to the new format using wtmpcvt(1). 988 98920100108: 990 Introduce the kernel thread "deadlock resolver" (which can be enabled 991 via the DEADLKRES option, see NOTES for more details) and the 992 sleepq_type() function for sleepqueues. 993 99420091202: 995 The rc.firewall and rc.firewall6 were unified, and 996 rc.firewall6 and rc.d/ip6fw were removed. 997 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 998 variables are obsoleted. Instead, the following new rc 999 variables are added to rc.d/ipfw: 1000 1001 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1002 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1003 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1004 1005 The meanings correspond to the relevant IPv4 variables. 1006 100720091125: 1008 8.0-RELEASE. 1009 101020091113: 1011 The default terminal emulation for syscons(4) has been changed 1012 from cons25 to xterm on all platforms except pc98. This means 1013 that the /etc/ttys file needs to be updated to ensure correct 1014 operation of applications on the console. 1015 1016 The terminal emulation style can be toggled per window by using 1017 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1018 options can be used to change the compile-time default back to 1019 cons25. 1020 1021 To prevent graphical artifacts, make sure the TERM environment 1022 variable is set to match the terminal emulation that is being 1023 performed by syscons(4). 1024 102520091109: 1026 The layout of the structure ieee80211req_scan_result has changed. 1027 Applications that require wireless scan results (e.g. ifconfig(8)) 1028 from net80211 need to be recompiled. 1029 1030 Applications such as wpa_supplicant(8) may require a full world 1031 build without using NO_CLEAN in order to get synchronized with the 1032 new structure. 1033 103420091025: 1035 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1036 There's one kernel module for each firmware. Adding "device iwnfw" 1037 to the kernel configuration file means including all three firmware 1038 images inside the kernel. If you want to include just the one for 1039 your wireless card, use the devices iwn4965fw, iwn5000fw or 1040 iwn5150fw. 1041 104220090926: 1043 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1044 into rc.d/netif. The changes are the following: 1045 1046 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1047 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1048 Note that both variables need the "inet6" keyword at the head. 1049 1050 Do not set $ipv6_network_interfaces manually if you do not 1051 understand what you are doing. It is not needed in most cases. 1052 1053 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1054 they are obsolete. 1055 1056 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1057 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1058 1059 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1060 all configured interfaces have "inet6 accept_rtadv" in the 1061 $ifconfig_IF_ipv6. These are for backward compatibility. 1062 1063 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1064 functionality of interfaces with no corresponding 1065 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1066 and the default address selection policy of ip6addrctl(8) 1067 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1068 Note that if you want to configure IPv6 functionality on the 1069 disabled interfaces after boot, first you need to clear the flag by 1070 using ifconfig(8) like: 1071 1072 ifconfig em0 inet6 -ifdisabled 1073 1074 If YES, the default address selection policy is set as 1075 IPv6-preferred. 1076 1077 The default value of $ipv6_prefer is NO. 1078 1079 4. If your system need to receive Router Advertisement messages, 1080 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1081 scripts automatically invoke rtsol(8) when the interface becomes 1082 UP. The Router Advertisement messages are used for SLAAC 1083 (State-Less Address AutoConfiguration). 1084 108520090922: 1086 802.11s D3.03 support was committed. This is incompatible with the 1087 previous code, which was based on D3.0. 1088 108920090912: 1090 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1091 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1092 control whether accepting Router Advertisement messages or not. 1093 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1094 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1095 The ifconfig(8) utility now supports these flags. 1096 109720090910: 1098 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1099 mount(8) and -a option for df(1) to see them. 1100 110120090825: 1102 The old tunable hw.bus.devctl_disable has been superseded by 1103 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1104 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1105 is 1000. 1106 110720090813: 1108 Remove the option STOP_NMI. The default action is now to use NMI only 1109 for KDB via the newly introduced function stop_cpus_hard() and 1110 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1111 111220090803: 1113 The stable/8 branch created in subversion. This corresponds to the 1114 RELENG_8 branch in CVS. 1115 111620090719: 1117 Bump the shared library version numbers for all libraries that do not 1118 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1119 __FreeBSD_version to 800105. 1120 112120090714: 1122 Due to changes in the implementation of virtual network stack support, 1123 all network-related kernel modules must be recompiled. As this change 1124 breaks the ABI, bump __FreeBSD_version to 800104. 1125 112620090713: 1127 The TOE interface to the TCP syncache has been modified to remove 1128 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1129 The cxgb driver is the only TOE consumer affected by this change, and 1130 needs to be recompiled along with the kernel. As this change breaks 1131 the ABI, bump __FreeBSD_version to 800103. 1132 113320090712: 1134 Padding has been added to struct tcpcb, sackhint and tcpstat in 1135 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1136 maintaining the ABI. However, this change breaks the ABI, so bump 1137 __FreeBSD_version to 800102. User space tools that rely on the size of 1138 any of these structs (e.g. sockstat) need to be recompiled. 1139 114020090630: 1141 The NFS_LEGACYRPC option has been removed along with the old kernel 1142 RPC implementation that this option selected. Kernel configurations 1143 may need to be adjusted. 1144 114520090629: 1146 The network interface device nodes at /dev/net/<interface> have been 1147 removed. All ioctl operations can be performed the normal way using 1148 routing sockets. The kqueue functionality can generally be replaced 1149 with routing sockets. 1150 115120090628: 1152 The documentation from the FreeBSD Documentation Project (Handbook, 1153 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1154 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1155 115620090624: 1157 The ABI of various structures related to the SYSV IPC API have been 1158 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1159 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1160 800100. 1161 116220090622: 1163 Layout of struct vnet has changed as routing related variables were 1164 moved to their own Vimage module. Modules need to be recompiled. Bump 1165 __FreeBSD_version to 800099. 1166 116720090619: 1168 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1169 respectively. As long as no more than 16 groups per process are used, 1170 no changes should be visible. When more than 16 groups are used, old 1171 binaries may fail if they call getgroups() or getgrouplist() with 1172 statically sized storage. Recompiling will work around this, but 1173 applications should be modified to use dynamically allocated storage 1174 for group arrays as POSIX.1-2008 does not cap an implementation's 1175 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1176 1177 NFS and portalfs mounts may also be affected as the list of groups is 1178 truncated to 16. Users of NFS who use more than 16 groups, should 1179 take care that negative group permissions are not used on the exported 1180 file systems as they will not be reliable unless a GSSAPI based 1181 authentication method is used. 1182 118320090616: 1184 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1185 option compiles in the support for adaptive spinning for lockmgrs 1186 which want to enable it. The lockinit() function now accepts the flag 1187 LK_ADAPTIVE in order to make the lock object subject to adaptive 1188 spinning when both held in write and read mode. 1189 119020090613: 1191 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1192 changed. User applications that use this ioctl need to be rebuilt. 1193 119420090611: 1195 The layout of struct thread has changed. Kernel and modules need to 1196 be rebuilt. 1197 119820090608: 1199 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1200 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1201 120220090602: 1203 window(1) has been removed from the base system. It can now be 1204 installed from ports. The port is called misc/window. 1205 120620090601: 1207 The way we are storing and accessing `routing table' entries has 1208 changed. Programs reading the FIB, like netstat, need to be 1209 re-compiled. 1210 121120090601: 1212 A new netisr implementation has been added for FreeBSD 8. Network 1213 file system modules, such as igmp, ipdivert, and others, should be 1214 rebuilt. 1215 Bump __FreeBSD_version to 800096. 1216 121720090530: 1218 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1219 more valid. 1220 122120090530: 1222 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1223 Bump __FreeBSD_version to 800094. 1224 122520090529: 1226 Add mnt_xflag field to 'struct mount'. File system modules need to be 1227 rebuilt. 1228 Bump __FreeBSD_version to 800093. 1229 123020090528: 1231 The compiling option ADAPTIVE_SX has been retired while it has been 1232 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1233 The KPI for sx_init_flags() changes as accepting flags: 1234 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1235 been introduced in order to handle the reversed logic. 1236 Bump __FreeBSD_version to 800092. 1237 123820090527: 1239 Add support for hierarchical jails. Remove global securelevel. 1240 Bump __FreeBSD_version to 800091. 1241 124220090523: 1243 The layout of struct vnet_net has changed, therefore modules 1244 need to be rebuilt. 1245 Bump __FreeBSD_version to 800090. 1246 124720090523: 1248 The newly imported zic(8) produces a new format in the output. Please 1249 run tzsetup(8) to install the newly created data to /etc/localtime. 1250 125120090520: 1252 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1253 hw.usb.* and is now consistent again with previous releases. 1254 125520090520: 1256 802.11 monitor mode support was revised and driver api's were changed. 1257 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1258 of DLT_IEEE802_11. No user-visible data structures were changed but 1259 applications that use DLT_IEEE802_11 may require changes. 1260 Bump __FreeBSD_version to 800088. 1261 126220090430: 1263 The layout of the following structs has changed: sysctl_oid, 1264 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1265 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1266 panics may be experienced. World rebuild is required for 1267 correctly checking networking state from userland. 1268 Bump __FreeBSD_version to 800085. 1269 127020090429: 1271 MLDv2 and Source-Specific Multicast (SSM) have been merged 1272 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1273 The implementation of SSM within FreeBSD's IPv6 stack closely 1274 follows the IPv4 implementation. 1275 1276 For kernel developers: 1277 1278 * The most important changes are that the ip6_output() and 1279 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1280 and this lock has been downgraded to a non-recursive mutex. 1281 1282 * As with the changes to the IPv4 stack to support SSM, filtering 1283 of inbound multicast traffic must now be performed by transport 1284 protocols within the IPv6 stack. This does not apply to TCP and 1285 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1286 1287 * The KPIs used by IPv6 multicast are similar to those used by 1288 the IPv4 stack, with the following differences: 1289 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1290 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1291 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1292 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1293 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1294 for MLDv1 have an additional 'timer' argument which is used to 1295 jitter the initial membership report for the solicited-node 1296 multicast membership on-link. 1297 * This is not strictly needed for MLDv2, which already jitters 1298 its report transmissions. However, the 'timer' argument is 1299 preserved in case MLDv1 is active on the interface. 1300 1301 * The KAME linked-list based IPv6 membership implementation has 1302 been refactored to use a vector similar to that used by the IPv4 1303 stack. 1304 Code which maintains a list of its own multicast memberships 1305 internally, e.g. carp, has been updated to reflect the new 1306 semantics. 1307 1308 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1309 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1310 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1311 implementation constraint which needs to be addressed in HEAD. 1312 1313 For application developers: 1314 1315 * The changes are broadly similar to those made for the IPv4 1316 stack. 1317 1318 * The use of IPv4 and IPv6 multicast socket options on the same 1319 socket, using mapped addresses, HAS NOT been tested or supported. 1320 1321 * There are a number of issues with the implementation of various 1322 IPv6 multicast APIs which need to be resolved in the API surface 1323 before the implementation is fully compatible with KAME userland 1324 use, and these are mostly to do with interface index treatment. 1325 1326 * The literature available discusses the use of either the delta / ASM 1327 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1328 using setsourcefilter(3)/getsourcefilter(3). For more information 1329 please refer to RFC 3768, 'Socket Interface Extensions for 1330 Multicast Source Filters'. 1331 1332 * Applications which use the published RFC 3678 APIs should be fine. 1333 1334 For systems administrators: 1335 1336 * The mtest(8) utility has been refactored to support IPv6, in 1337 addition to IPv4. Interface addresses are no longer accepted 1338 as arguments, their names must be used instead. The utility 1339 will map the interface name to its first IPv4 address as 1340 returned by getifaddrs(3). 1341 1342 * The ifmcstat(8) utility has also been updated to print the MLDv2 1343 endpoint state and source filter lists via sysctl(3). 1344 1345 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1346 loopback of IPv6 multicast datagrams by default; it defaults to 1 1347 to preserve the existing behaviour. Disabling multicast loopback is 1348 recommended for optimal system performance. 1349 1350 * The IPv6 MROUTING code has been changed to examine this sysctl 1351 instead of attempting to perform a group lookup before looping 1352 back forwarded datagrams. 1353 1354 Bump __FreeBSD_version to 800084. 1355 135620090422: 1357 Implement low-level Bluetooth HCI API. 1358 Bump __FreeBSD_version to 800083. 1359 136020090419: 1361 The layout of struct malloc_type, used by modules to register new 1362 memory allocation types, has changed. Most modules will need to 1363 be rebuilt or panics may be experienced. 1364 Bump __FreeBSD_version to 800081. 1365 136620090415: 1367 Anticipate overflowing inp_flags - add inp_flags2. 1368 This changes most offsets in inpcb, so checking v4 connection 1369 state will require a world rebuild. 1370 Bump __FreeBSD_version to 800080. 1371 137220090415: 1373 Add an llentry to struct route and struct route_in6. Modules 1374 embedding a struct route will need to be recompiled. 1375 Bump __FreeBSD_version to 800079. 1376 137720090414: 1378 The size of rt_metrics_lite and by extension rtentry has changed. 1379 Networking administration apps will need to be recompiled. 1380 The route command now supports show as an alias for get, weighting 1381 of routes, sticky and nostick flags to alter the behavior of stateful 1382 load balancing. 1383 Bump __FreeBSD_version to 800078. 1384 138520090408: 1386 Do not use Giant for kbdmux(4) locking. This is wrong and 1387 apparently causing more problems than it solves. This will 1388 re-open the issue where interrupt handlers may race with 1389 kbdmux(4) in polling mode. Typical symptoms include (but 1390 not limited to) duplicated and/or missing characters when 1391 low level console functions (such as gets) are used while 1392 interrupts are enabled (for example geli password prompt, 1393 mountroot prompt etc.). Disabling kbdmux(4) may help. 1394 139520090407: 1396 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1397 kernel modules referencing any of the above need to be recompiled. 1398 Bump __FreeBSD_version to 800075. 1399 140020090320: 1401 GEOM_PART has become the default partition slicer for storage devices, 1402 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1403 introduces some changes: 1404 1405 MSDOS/EBR: the devices created from MSDOS extended partition entries 1406 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1407 to devices with offset-based names. fstabs may need to be modified. 1408 1409 BSD: the "geometry does not match label" warning is harmless in most 1410 cases but it points to problems in file system misalignment with 1411 disk geometry. The "c" partition is now implicit, covers the whole 1412 top-level drive and cannot be (mis)used by users. 1413 1414 General: Kernel dumps are now not allowed to be written to devices 1415 whose partition types indicate they are meant to be used for file 1416 systems (or, in case of MSDOS partitions, as something else than 1417 the "386BSD" type). 1418 1419 Most of these changes date approximately from 200812. 1420 142120090319: 1422 The uscanner(4) driver has been removed from the kernel. This follows 1423 Linux removing theirs in 2.6 and making libusb the default interface 1424 (supported by sane). 1425 142620090319: 1427 The multicast forwarding code has been cleaned up. netstat(1) 1428 only relies on KVM now for printing bandwidth upcall meters. 1429 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1430 ip6_mroute_mod respectively. The config(5) options for statically 1431 compiling this code remain the same, i.e. 'options MROUTING'. 1432 143320090315: 1434 Support for the IFF_NEEDSGIANT network interface flag has been 1435 removed, which means that non-MPSAFE network device drivers are no 1436 longer supported. In particular, if_ar, if_sr, and network device 1437 drivers from the old (legacy) USB stack can no longer be built or 1438 used. 1439 144020090313: 1441 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1442 a bunch of new language catalog files have also been added. 1443 This means that some common libc messages are now localized and 1444 they depend on the LC_MESSAGES environmental variable. 1445 144620090313: 1447 The k8temp(4) driver has been renamed to amdtemp(4) since 1448 support for Family 10 and Family 11 CPU families was added. 1449 145020090309: 1451 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1452 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1453 1454 For kernel developers, the most important changes are that the 1455 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1456 and this lock has been downgraded to a non-recursive mutex. 1457 1458 Transport protocols (UDP, Raw IP) are now responsible for filtering 1459 inbound multicast traffic according to group membership and source 1460 filters. The imo_multicast_filter() KPI exists for this purpose. 1461 Transports which do not use multicast (SCTP, TCP) already reject 1462 multicast by default. Forwarding and receive performance may improve 1463 as a mutex acquisition is no longer needed in the ip_input() 1464 low-level input path. in_addmulti() and in_delmulti() are shimmed 1465 to new KPIs which exist to support SSM in-kernel. 1466 1467 For application developers, it is recommended that loopback of 1468 multicast datagrams be disabled for best performance, as this 1469 will still cause the lock to be taken for each looped-back 1470 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1471 be tuned to 0 to disable loopback by default; it defaults to 1 1472 to preserve the existing behaviour. 1473 1474 For systems administrators, to obtain best performance with 1475 multicast reception and multiple groups, it is always recommended 1476 that a card with a suitably precise hash filter is used. Hash 1477 collisions will still result in the lock being taken within the 1478 transport protocol input path to check group membership. 1479 1480 If deploying FreeBSD in an environment with IGMP snooping switches, 1481 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1482 enabled; this forces 224.0.0.0/24 group membership to be announced 1483 via IGMP. 1484 1485 The size of 'struct igmpstat' has changed; netstat needs to be 1486 recompiled to reflect this. 1487 Bump __FreeBSD_version to 800070. 1488 148920090309: 1490 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1491 updated to use it. This requires a buildworld/installworld in order to 1492 update the library and dependencies (usbconfig, etc). Its advisable to 1493 rebuild all ports which uses libusb. More specific directions are given 1494 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1495 libusb are no longer required and can be removed. 1496 149720090302: 1498 A workaround is committed to allow the creation of System V shared 1499 memory segment of size > 2 GB on the 64-bit architectures. 1500 Due to a limitation of the existing ABI, the shm_segsz member 1501 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1502 wrong for large segments. Note that limits must be explicitly 1503 raised to allow such segments to be created. 1504 150520090301: 1506 The layout of struct ifnet has changed, requiring a rebuild of all 1507 network device driver modules. 1508 150920090227: 1510 The /dev handling for the new USB stack has changed, a 1511 buildworld/installworld is required for libusb20. 1512 151320090223: 1514 The new USB2 stack has now been permanently moved in and all kernel and 1515 module names reverted to their previous values (eg, usb, ehci, ohci, 1516 ums, ...). The old usb stack can be compiled in by prefixing the name 1517 with the letter 'o', the old usb modules have been removed. 1518 Updating entry 20090216 for xorg and 20090215 for libmap may still 1519 apply. 1520 152120090217: 1522 The rc.conf(5) option if_up_delay has been renamed to 1523 defaultroute_delay to better reflect its purpose. If you have 1524 customized this setting in /etc/rc.conf you need to update it to 1525 use the new name. 1526 152720090216: 1528 xorg 7.4 wants to configure its input devices via hald which does not 1529 yet work with USB2. If the keyboard/mouse does not work in xorg then 1530 add 1531 Option "AllowEmptyInput" "off" 1532 to your ServerLayout section. This will cause X to use the configured 1533 kbd and mouse sections from your xorg.conf. 1534 153520090215: 1536 The GENERIC kernels for all architectures now default to the new USB2 1537 stack. No kernel config options or code have been removed so if a 1538 problem arises please report it and optionally revert to the old USB 1539 stack. If you are loading USB kernel modules or have a custom kernel 1540 that includes GENERIC then ensure that usb names are also changed over, 1541 eg uftdi -> usb2_serial_ftdi. 1542 1543 Older programs linked against the ports libusb 0.1 need to be 1544 redirected to the new stack's libusb20. /etc/libmap.conf can 1545 be used for this: 1546 # Map old usb library to new one for usb2 stack 1547 libusb-0.1.so.8 libusb20.so.1 1548 154920090209: 1550 All USB ethernet devices now attach as interfaces under the name ueN 1551 (eg. ue0). This is to provide a predictable name as vendors often 1552 change usb chipsets in a product without notice. 1553 155420090203: 1555 The ichsmb(4) driver has been changed to require SMBus slave 1556 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1557 All of the other SMBus controller drivers require left-justified 1558 slave addresses, so this change makes all the drivers provide the 1559 same interface. 1560 156120090201: 1562 INET6 statistics (struct ip6stat) was updated. 1563 netstat(1) needs to be recompiled. 1564 156520090119: 1566 NTFS has been removed from GENERIC kernel on amd64 to match 1567 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1568 will load ntfs.ko module automatically when NTFS support is 1569 actually needed, unless ntfs.ko is not installed or security 1570 level prohibits loading kernel modules. If either is the case, 1571 "options NTFS" has to be added into kernel config. 1572 157320090115: 1574 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1575 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1576 800061. User space tools that rely on the size of struct tcpcb in 1577 tcp_var.h (e.g. sockstat) need to be recompiled. 1578 157920081225: 1580 ng_tty(4) module updated to match the new TTY subsystem. 1581 Due to API change, user-level applications must be updated. 1582 New API support added to mpd5 CVS and expected to be present 1583 in next mpd5.3 release. 1584 158520081219: 1586 With __FreeBSD_version 800060 the makefs tool is part of 1587 the base system (it was a port). 1588 158920081216: 1590 The afdata and ifnet locks have been changed from mutexes to 1591 rwlocks, network modules will need to be re-compiled. 1592 159320081214: 1594 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1595 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1596 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1597 architecture and 40 bytes on 64-bit architecture. The userland 1598 applications "arp" and "ndp" have been updated accordingly. 1599 The output from "netstat -r" shows only routing entries and 1600 none of the L2 information. 1601 160220081130: 1603 __FreeBSD_version 800057 marks the switchover from the 1604 binary ath hal to source code. Users must add the line: 1605 1606 options AH_SUPPORT_AR5416 1607 1608 to their kernel config files when specifying: 1609 1610 device ath_hal 1611 1612 The ath_hal module no longer exists; the code is now compiled 1613 together with the driver in the ath module. It is now 1614 possible to tailor chip support (i.e. reduce the set of chips 1615 and thereby the code size); consult ath_hal(4) for details. 1616 161720081121: 1618 __FreeBSD_version 800054 adds memory barriers to 1619 <machine/atomic.h>, new interfaces to ifnet to facilitate 1620 multiple hardware transmit queues for cards that support 1621 them, and a lock-less ring-buffer implementation to 1622 enable drivers to more efficiently manage queueing of 1623 packets. 1624 162520081117: 1626 A new version of ZFS (version 13) has been merged to -HEAD. 1627 This version has zpool attribute "listsnapshots" off by 1628 default, which means "zfs list" does not show snapshots, 1629 and is the same as Solaris behavior. 1630 163120081028: 1632 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1633 163420081009: 1635 The uhci, ohci, ehci and slhci USB Host controller drivers have 1636 been put into separate modules. If you load the usb module 1637 separately through loader.conf you will need to load the 1638 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1639 controller add the following to loader.conf: 1640 1641 uhci_load="YES" 1642 ehci_load="YES" 1643 164420081009: 1645 The ABI used by the PMC toolset has changed. Please keep 1646 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1647 sync. 1648 164920081009: 1650 atapci kernel module now includes only generic PCI ATA 1651 driver. AHCI driver moved to ataahci kernel module. 1652 All vendor-specific code moved into separate kernel modules: 1653 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1654 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1655 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1656 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1657 165820080820: 1659 The TTY subsystem of the kernel has been replaced by a new 1660 implementation, which provides better scalability and an 1661 improved driver model. Most common drivers have been migrated to 1662 the new TTY subsystem, while others have not. The following 1663 drivers have not yet been ported to the new TTY layer: 1664 1665 PCI/ISA: 1666 cy, digi, rc, rp, sio 1667 1668 USB: 1669 ubser, ucycom 1670 1671 Line disciplines: 1672 ng_h4, ng_tty, ppp, sl, snp 1673 1674 Adding these drivers to your kernel configuration file shall 1675 cause compilation to fail. 1676 167720080818: 1678 ntpd has been upgraded to 4.2.4p5. 1679 168020080801: 1681 OpenSSH has been upgraded to 5.1p1. 1682 1683 For many years, FreeBSD's version of OpenSSH preferred DSA 1684 over RSA for host and user authentication keys. With this 1685 upgrade, we've switched to the vendor's default of RSA over 1686 DSA. This may cause upgraded clients to warn about unknown 1687 host keys even for previously known hosts. Users should 1688 follow the usual procedure for verifying host keys before 1689 accepting the RSA key. 1690 1691 This can be circumvented by setting the "HostKeyAlgorithms" 1692 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1693 command line. 1694 1695 Please note that the sequence of keys offered for 1696 authentication has been changed as well. You may want to 1697 specify IdentityFile in a different order to revert this 1698 behavior. 1699 170020080713: 1701 The sio(4) driver has been removed from the i386 and amd64 1702 kernel configuration files. This means uart(4) is now the 1703 default serial port driver on those platforms as well. 1704 1705 To prevent collisions with the sio(4) driver, the uart(4) driver 1706 uses different names for its device nodes. This means the 1707 onboard serial port will now most likely be called "ttyu0" 1708 instead of "ttyd0". You may need to reconfigure applications to 1709 use the new device names. 1710 1711 When using the serial port as a boot console, be sure to update 1712 /boot/device.hints and /etc/ttys before booting the new kernel. 1713 If you forget to do so, you can still manually specify the hints 1714 at the loader prompt: 1715 1716 set hint.uart.0.at="isa" 1717 set hint.uart.0.port="0x3F8" 1718 set hint.uart.0.flags="0x10" 1719 set hint.uart.0.irq="4" 1720 boot -s 1721 172220080609: 1723 The gpt(8) utility has been removed. Use gpart(8) to partition 1724 disks instead. 1725 172620080603: 1727 The version that Linuxulator emulates was changed from 2.4.2 1728 to 2.6.16. If you experience any problems with Linux binaries 1729 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1730 if it fixes the problem contact emulation mailing list. 1731 173220080525: 1733 ISDN4BSD (I4B) was removed from the src tree. You may need to 1734 update a your kernel configuration and remove relevant entries. 1735 173620080509: 1737 I have checked in code to support multiple routing tables. 1738 See the man pages setfib(1) and setfib(2). 1739 This is a hopefully backwards compatible version, 1740 but to make use of it you need to compile your kernel 1741 with options ROUTETABLES=2 (or more up to 16). 1742 174320080420: 1744 The 802.11 wireless support was redone to enable multi-bss 1745 operation on devices that are capable. The underlying device 1746 is no longer used directly but instead wlanX devices are 1747 cloned with ifconfig. This requires changes to rc.conf files. 1748 For example, change: 1749 ifconfig_ath0="WPA DHCP" 1750 to 1751 wlans_ath0=wlan0 1752 ifconfig_wlan0="WPA DHCP" 1753 see rc.conf(5) for more details. In addition, mergemaster of 1754 /etc/rc.d is highly recommended. Simultaneous update of userland 1755 and kernel wouldn't hurt either. 1756 1757 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1758 modules were merged into the base wlan module. All references 1759 to these modules (e.g. in kernel config files) must be removed. 1760 176120080408: 1762 psm(4) has gained write(2) support in native operation level. 1763 Arbitrary commands can be written to /dev/psm%d and status can 1764 be read back from it. Therefore, an application is responsible 1765 for status validation and error recovery. It is a no-op in 1766 other operation levels. 1767 176820080312: 1769 Support for KSE threading has been removed from the kernel. To 1770 run legacy applications linked against KSE libmap.conf may 1771 be used. The following libmap.conf may be used to ensure 1772 compatibility with any prior release: 1773 1774 libpthread.so.1 libthr.so.1 1775 libpthread.so.2 libthr.so.2 1776 libkse.so.3 libthr.so.3 1777 177820080301: 1779 The layout of struct vmspace has changed. This affects libkvm 1780 and any executables that link against libkvm and use the 1781 kvm_getprocs() function. In particular, but not exclusively, 1782 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1783 The effects are minimal, but it's advisable to upgrade world 1784 nonetheless. 1785 178620080229: 1787 The latest em driver no longer has support in it for the 1788 82575 adapter, this is now moved to the igb driver. The 1789 split was done to make new features that are incompatible 1790 with older hardware easier to do. 1791 179220080220: 1793 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1794 likewise the kernel option is now GEOM_LINUX_LVM. 1795 179620080211: 1797 The default NFS mount mode has changed from UDP to TCP for 1798 increased reliability. If you rely on (insecurely) NFS 1799 mounting across a firewall you may need to update your 1800 firewall rules. 1801 180220080208: 1803 Belatedly note the addition of m_collapse for compacting 1804 mbuf chains. 1805 180620080126: 1807 The fts(3) structures have been changed to use adequate 1808 integer types for their members and so to be able to cope 1809 with huge file trees. The old fts(3) ABI is preserved 1810 through symbol versioning in libc, so third-party binaries 1811 using fts(3) should still work, although they will not take 1812 advantage of the extended types. At the same time, some 1813 third-party software might fail to build after this change 1814 due to unportable assumptions made in its source code about 1815 fts(3) structure members. Such software should be fixed 1816 by its vendor or, in the worst case, in the ports tree. 1817 FreeBSD_version 800015 marks this change for the unlikely 1818 case that a portable fix is impossible. 1819 182020080123: 1821 To upgrade to -current after this date, you must be running 1822 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1823 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1824 182520071128: 1826 The ADAPTIVE_GIANT kernel option has been retired because its 1827 functionality is the default now. 1828 182920071118: 1830 The AT keyboard emulation of sunkbd(4) has been turned on 1831 by default. In order to make the special symbols of the Sun 1832 keyboards driven by sunkbd(4) work under X these now have 1833 to be configured the same way as Sun USB keyboards driven 1834 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1835 1836 Option "XkbLayout" "us" 1837 Option "XkbRules" "xorg" 1838 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1839 184020071024: 1841 It has been decided that it is desirable to provide ABI 1842 backwards compatibility to the FreeBSD 4/5/6 versions of the 1843 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1844 broken with the introduction of PCI domain support (see the 1845 20070930 entry). Unfortunately, this required the ABI of 1846 PCIOCGETCONF to be broken again in order to be able to 1847 provide backwards compatibility to the old version of that 1848 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1849 again. As for prominent ports this affects neither pciutils 1850 nor xorg-server this time, the hal port needs to be rebuilt 1851 however. 1852 185320071020: 1854 The misnamed kthread_create() and friends have been renamed 1855 to kproc_create() etc. Many of the callers already 1856 used kproc_start().. 1857 I will return kthread_create() and friends in a while 1858 with implementations that actually create threads, not procs. 1859 Renaming corresponds with version 800002. 1860 186120071010: 1862 RELENG_7 branched. 1863 1864COMMON ITEMS: 1865 1866 General Notes 1867 ------------- 1868 Avoid using make -j when upgrading. While generally safe, there are 1869 sometimes problems using -j to upgrade. If your upgrade fails with 1870 -j, please try again without -j. From time to time in the past there 1871 have been problems using -j with buildworld and/or installworld. This 1872 is especially true when upgrading between "distant" versions (eg one 1873 that cross a major release boundary or several minor releases, or when 1874 several months have passed on the -current branch). 1875 1876 Sometimes, obscure build problems are the result of environment 1877 poisoning. This can happen because the make utility reads its 1878 environment when searching for values for global variables. To run 1879 your build attempts in an "environmental clean room", prefix all make 1880 commands with 'env -i '. See the env(1) manual page for more details. 1881 1882 When upgrading from one major version to another it is generally best 1883 to upgrade to the latest code in the currently installed branch first, 1884 then do an upgrade to the new branch. This is the best-tested upgrade 1885 path, and has the highest probability of being successful. Please try 1886 this approach before reporting problems with a major version upgrade. 1887 1888 When upgrading a live system, having a root shell around before 1889 installing anything can help undo problems. Not having a root shell 1890 around can lead to problems if pam has changed too much from your 1891 starting point to allow continued authentication after the upgrade. 1892 1893 ZFS notes 1894 --------- 1895 When upgrading the boot ZFS pool to a new version, always follow 1896 these two steps: 1897 1898 1.) recompile and reinstall the ZFS boot loader and boot block 1899 (this is part of "make buildworld" and "make installworld") 1900 1901 2.) update the ZFS boot block on your boot drive 1902 1903 The following example updates the ZFS boot block on the first 1904 partition (freebsd-boot) of a GPT partitioned drive ad0: 1905 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 1906 1907 Non-boot pools do not need these updates. 1908 1909 To build a kernel 1910 ----------------- 1911 If you are updating from a prior version of FreeBSD (even one just 1912 a few days old), you should follow this procedure. It is the most 1913 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1914 1915 make kernel-toolchain 1916 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1917 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1918 1919 To test a kernel once 1920 --------------------- 1921 If you just want to boot a kernel once (because you are not sure 1922 if it works, or if you want to boot a known bad kernel to provide 1923 debugging information) run 1924 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1925 nextboot -k testkernel 1926 1927 To just build a kernel when you know that it won't mess you up 1928 -------------------------------------------------------------- 1929 This assumes you are already running a CURRENT system. Replace 1930 ${arch} with the architecture of your machine (e.g. "i386", 1931 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1932 1933 cd src/sys/${arch}/conf 1934 config KERNEL_NAME_HERE 1935 cd ../compile/KERNEL_NAME_HERE 1936 make depend 1937 make 1938 make install 1939 1940 If this fails, go to the "To build a kernel" section. 1941 1942 To rebuild everything and install it on the current system. 1943 ----------------------------------------------------------- 1944 # Note: sometimes if you are running current you gotta do more than 1945 # is listed here if you are upgrading from a really old current. 1946 1947 <make sure you have good level 0 dumps> 1948 make buildworld 1949 make kernel KERNCONF=YOUR_KERNEL_HERE 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 To cross-install current onto a separate partition 1959 -------------------------------------------------- 1960 # In this approach we use a separate partition to hold 1961 # current's root, 'usr', and 'var' directories. A partition 1962 # holding "/", "/usr" and "/var" should be about 2GB in 1963 # size. 1964 1965 <make sure you have good level 0 dumps> 1966 <boot into -stable> 1967 make buildworld 1968 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1969 <maybe newfs current's root partition> 1970 <mount current's root partition on directory ${CURRENT_ROOT}> 1971 make installworld DESTDIR=${CURRENT_ROOT} 1972 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1973 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1974 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1975 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1976 <reboot into current> 1977 <do a "native" rebuild/install as described in the previous section> 1978 <maybe install compatibility libraries from ports/misc/compat*> 1979 <reboot> 1980 1981 1982 To upgrade in-place from stable to current 1983 ---------------------------------------------- 1984 <make sure you have good level 0 dumps> 1985 make buildworld [9] 1986 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1987 [1] 1988 <reboot in single user> [3] 1989 mergemaster -p [5] 1990 make installworld 1991 mergemaster -i [4] 1992 make delete-old [6] 1993 <reboot> 1994 1995 Make sure that you've read the UPDATING file to understand the 1996 tweaks to various things you need. At this point in the life 1997 cycle of current, things change often and you are on your own 1998 to cope. The defaults can also change, so please read ALL of 1999 the UPDATING entries. 2000 2001 Also, if you are tracking -current, you must be subscribed to 2002 freebsd-current@freebsd.org. Make sure that before you update 2003 your sources that you have read and understood all the recent 2004 messages there. If in doubt, please track -stable which has 2005 much fewer pitfalls. 2006 2007 [1] If you have third party modules, such as vmware, you 2008 should disable them at this point so they don't crash your 2009 system on reboot. 2010 2011 [3] From the bootblocks, boot -s, and then do 2012 fsck -p 2013 mount -u / 2014 mount -a 2015 cd src 2016 adjkerntz -i # if CMOS is wall time 2017 Also, when doing a major release upgrade, it is required that 2018 you boot into single user mode to do the installworld. 2019 2020 [4] Note: This step is non-optional. Failure to do this step 2021 can result in a significant reduction in the functionality of the 2022 system. Attempting to do it by hand is not recommended and those 2023 that pursue this avenue should read this file carefully, as well 2024 as the archives of freebsd-current and freebsd-hackers mailing lists 2025 for potential gotchas. The -U option is also useful to consider. 2026 See mergemaster(8) for more information. 2027 2028 [5] Usually this step is a noop. However, from time to time 2029 you may need to do this if you get unknown user in the following 2030 step. It never hurts to do it all the time. You may need to 2031 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2032 install) after the buildworld before this step if you last updated 2033 from current before 20130425 or from -stable before 20130430. 2034 2035 [6] This only deletes old files and directories. Old libraries 2036 can be deleted by "make delete-old-libs", but you have to make 2037 sure that no program is using those libraries anymore. 2038 2039 [8] In order to have a kernel that can run the 4.x binaries needed to 2040 do an installworld, you must include the COMPAT_FREEBSD4 option in 2041 your kernel. Failure to do so may leave you with a system that is 2042 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2043 required to run the 5.x binaries on more recent kernels. And so on 2044 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2045 2046 Make sure that you merge any new devices from GENERIC since the 2047 last time you updated your kernel config file. 2048 2049 [9] When checking out sources, you must include the -P flag to have 2050 cvs prune empty directories. 2051 2052 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2053 "?=" instead of the "=" assignment operator, so that buildworld can 2054 override the CPUTYPE if it needs to. 2055 2056 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2057 not on the command line, or in /etc/make.conf. buildworld will 2058 warn if it is improperly defined. 2059FORMAT: 2060 2061This file contains a list, in reverse chronological order, of major 2062breakages in tracking -current. It is not guaranteed to be a complete 2063list of such breakages, and only contains entries since October 10, 2007. 2064If you need to see UPDATING entries from before that date, you will need 2065to fetch an UPDATING file from an older FreeBSD release. 2066 2067Copyright information: 2068 2069Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2070 2071Redistribution, publication, translation and use, with or without 2072modification, in full or in part, in any form or format of this 2073document are permitted without further permission from the author. 2074 2075THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2076IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2077WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2078DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2079INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2080(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2081SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2082HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2083STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2084IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2085POSSIBILITY OF SUCH DAMAGE. 2086 2087Contact Warner Losh if you have any questions about your use of 2088this document. 2089 2090$FreeBSD: stable/10/UPDATING 263838 2014-03-27 20:32:58Z dim $ 2091