UPDATING revision 260013
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 1920131216: 20 The behavior of gss_pseudo_random() for the krb5 mechanism 21 has changed, for applications requesting a longer random string 22 than produced by the underlying enctype's pseudo-random() function. 23 In particular, the random string produced from a session key of 24 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 25 be different at the 17th octet and later, after this change. 26 The counter used in the PRF+ construction is now encoded as a 27 big-endian integer in accordance with RFC 4402. 28 __FreeBSD_version is bumped to 1000701. 29 3020131108: 31 The WITHOUT_ATF build knob has been removed and its functionality 32 has been subsumed into the more generic WITHOUT_TESTS. If you were 33 using the former to disable the build of the ATF libraries, you 34 should change your settings to use the latter. 35 3620131031: 37 The default version of mtree is nmtree which is obtained from 38 NetBSD. The output is generally the same, but may vary 39 slightly. If you found you need identical output adding 40 "-F freebsd9" to the command line should do the trick. For the 41 time being, the old mtree is available as fmtree. 42 4320131014: 44 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 45 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 46 1.1.4_8 and verify bsdyml not linked in, before running "make 47 delete-old-libs": 48 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 49 or 50 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 51 5220131010: 53 The rc.d/jail script has been updated to support jail(8) 54 configuration file. The "jail_<jname>_*" rc.conf(5) variables 55 for per-jail configuration are automatically converted to 56 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 57 This is transparently backward compatible. See below about some 58 incompatibilities and rc.conf(5) manual page for more details. 59 60 These variables are now deprecated in favor of jail(8) configuration 61 file. One can use "rc.d/jail config <jname>" command to generate 62 a jail(8) configuration file in /var/run/jail.<jname>.conf without 63 running the jail(8) utility. The default pathname of the 64 configuration file is /etc/jail.conf and can be specified by 65 using $jail_conf or $jail_<jname>_conf variables. 66 67 Please note that jail_devfs_ruleset accepts an integer at 68 this moment. Please consider to rewrite the ruleset name 69 with an integer. 70 7120130930: 72 BIND has been removed from the base system. If all you need 73 is a local resolver, simply enable and start the local_unbound 74 service instead. Otherwise, several versions of BIND are 75 available in the ports tree. The dns/bind99 port is one example. 76 77 With this change, nslookup(1) and dig(1) are no longer in the base 78 system. Users should instead use host(1) and drill(1) which are 79 in the base system. Alternatively, nslookup and dig can 80 be obtained by installing the dns/bind-tools port. 81 8220130916: 83 With the addition of unbound(8), a new unbound user is now 84 required during installworld. "mergemaster -p" can be used to 85 add the user prior to installworld, as documented in the handbook. 86 8720130911: 88 OpenSSH is now built with DNSSEC support, and will by default 89 silently trust signed SSHFP records. This can be controlled with 90 the VerifyHostKeyDNS client configuration setting. DNSSEC support 91 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 92 9320130906: 94 The GNU Compiler Collection and C++ standard library (libstdc++) 95 are no longer built by default on platforms where clang is the system 96 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 97 options in src.conf. 98 9920130905: 100 The PROCDESC kernel option is now part of the GENERIC kernel 101 configuration and is required for the rwhod(8) to work. 102 If you are using custom kernel configuration, you should include 103 'options PROCDESC'. 104 10520130905: 106 The API and ABI related to the Capsicum framework was modified 107 in backward incompatible way. The userland libraries and programs 108 have to be recompiled to work with the new kernel. This includes the 109 following libraries and programs, but the whole buildworld is 110 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 111 kdump, procstat, rwho, rwhod, uniq. 112 11320130903: 114 AES-NI intrinsic support has been added to gcc. The AES-NI module 115 has been updated to use this support. A new gcc is required to build 116 the aesni module on both i386 and amd64. 117 11820130821: 119 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 120 Thus "device padlock_rng" and "device rdrand_rng" should be 121 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 122 12320130813: 124 WITH_ICONV has been split into two feature sets. WITH_ICONV now 125 enables just the iconv* functionality and is now on by default. 126 WITH_LIBICONV_COMPAT enables the libiconv api and link time 127 compatability. Set WITHOUT_ICONV to build the old way. 128 If you have been using WITH_ICONV before, you will very likely 129 need to turn on WITH_LIBICONV_COMPAT. 130 13120130806: 132 INVARIANTS option now enables DEBUG for code with OpenSolaris and 133 Illumos origin, including ZFS. If you have INVARIANTS in your 134 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 135 explicitly. 136 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 137 locks if WITNESS option was set. Because that generated a lot of 138 witness(9) reports and all of them were believed to be false 139 positives, this is no longer done. New option OPENSOLARIS_WITNESS 140 can be used to achieve the previous behavior. 141 14220130806: 143 Timer values in IPv6 data structures now use time_uptime instead 144 of time_second. Although this is not a user-visible functional 145 change, userland utilities which directly use them---ndp(8), 146 rtadvd(8), and rtsold(8) in the base system---need to be updated 147 to r253970 or later. 148 14920130802: 150 find -delete can now delete the pathnames given as arguments, 151 instead of only files found below them or if the pathname did 152 not contain any slashes. Formerly, the following error message 153 would result: 154 155 find: -delete: <path>: relative path potentially not safe 156 157 Deleting the pathnames given as arguments can be prevented 158 without error messages using -mindepth 1 or by changing 159 directory and passing "." as argument to find. This works in the 160 old as well as the new version of find. 161 16220130726: 163 Behavior of devfs rules path matching has been changed. 164 Pattern is now always matched against fully qualified devfs 165 path and slash characters must be explicitly matched by 166 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 167 subdirectories must be reviewed. 168 16920130716: 170 The default ARM ABI has changed to the ARM EABI. The old ABI is 171 incompatible with the ARM EABI and all programs and modules will 172 need to be rebuilt to work with a new kernel. 173 174 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 175 176 NOTE: Support for the old ABI will be removed in the future and 177 users are advised to upgrade. 178 17920130709: 180 pkg_install has been disconnected from the build if you really need it 181 you should add WITH_PKGTOOLS in your src.conf(5). 182 18320130709: 184 Most of network statistics structures were changed to be able 185 keep 64-bits counters. Thus all tools, that work with networking 186 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 187 18820130629: 189 Fix targets that run multiple make's to use && rather than ; 190 so that subsequent steps depend on success of previous. 191 192 NOTE: if building 'universe' with -j* on stable/8 or stable/9 193 it would be better to start the build using bmake, to avoid 194 overloading the machine. 195 19620130618: 197 Fix a bug that allowed a tracing process (e.g. gdb) to write 198 to a memory-mapped file in the traced process's address space 199 even if neither the traced process nor the tracing process had 200 write access to that file. 201 20220130615: 203 CVS has been removed from the base system. An exact copy 204 of the code is available from the devel/cvs port. 205 20620130613: 207 Some people report the following error after the switch to bmake: 208 209 make: illegal option -- J 210 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 211 ... 212 *** [buildworld] Error code 2 213 214 this likely due to an old instance of make in 215 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 216 which src/Makefile will use that blindly, if it exists, so if 217 you see the above error: 218 219 rm -rf `make -V MAKEPATH` 220 221 should resolve it. 222 22320130516: 224 Use bmake by default. 225 Whereas before one could choose to build with bmake via 226 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 227 make. The goal is to remove these knobs for 10-RELEASE. 228 229 It is worth noting that bmake (like gmake) treats the command 230 line as the unit of failure, rather than statements within the 231 command line. Thus '(cd some/where && dosomething)' is safer 232 than 'cd some/where; dosomething'. The '()' allows consistent 233 behavior in parallel build. 234 23520130429: 236 Fix a bug that allows NFS clients to issue READDIR on files. 237 23820130426: 239 The WITHOUT_IDEA option has been removed because 240 the IDEA patent expired. 241 24220130426: 243 The sysctl which controls TRIM support under ZFS has been renamed 244 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 245 enabled by default. 246 24720130425: 248 The mergemaster command now uses the default MAKEOBJDIRPREFIX 249 rather than creating it's own in the temporary directory in 250 order allow access to bootstrapped versions of tools such as 251 install and mtree. When upgrading from version of FreeBSD where 252 the install command does not support -l, you will need to 253 install a new mergemaster command if mergemaster -p is required. 254 This can be accomplished with the command (cd src/usr.sbin/mergemaster 255 && make install). 256 25720130404: 258 Legacy ATA stack, disabled and replaced by new CAM-based one since 259 FreeBSD 9.0, completely removed from the sources. Kernel modules 260 atadisk and atapi*, user-level tools atacontrol and burncd are 261 removed. Kernel option `options ATA_CAM` is now permanently enabled 262 and removed. 263 26420130319: 265 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 266 and socketpair(2). Software, in particular Kerberos, may 267 automatically detect and use these during building. The resulting 268 binaries will not work on older kernels. 269 27020130308: 271 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 272 information, see the respective 20130304 entry). 273 27420130304: 275 Recent commits to callout(9) changed the size of struct callout, 276 so the KBI is probably heavily disturbed. Also, some functions 277 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 278 by macros. Every kernel module using it won't load, so rebuild 279 is requested. 280 281 The ctl device has been re-enabled in GENERIC for i386 and amd64, 282 but does not initialize by default (because of the new CTL_DISABLE 283 option) to save memory. To re-enable it, remove the CTL_DISABLE 284 option from the kernel config file or set kern.cam.ctl.disable=0 285 in /boot/loader.conf. 286 28720130301: 288 The ctl device has been disabled in GENERIC for i386 and amd64. 289 This was done due to the extra memory being allocated at system 290 initialisation time by the ctl driver which was only used if 291 a CAM target device was created. This makes a FreeBSD system 292 unusable on 128MB or less of RAM. 293 29420130208: 295 A new compression method (lz4) has been merged to -HEAD. Please 296 refer to zpool-features(7) for more information. 297 298 Please refer to the "ZFS notes" section of this file for information 299 on upgrading boot ZFS pools. 300 30120130129: 302 A BSD-licensed patch(1) variant has been added and is installed 303 as bsdpatch, being the GNU version the default patch. 304 To inverse the logic and use the BSD-licensed one as default, 305 while having the GNU version installed as gnupatch, rebuild 306 and install world with the WITH_BSD_PATCH knob set. 307 30820130121: 309 Due to the use of the new -l option to install(1) during build 310 and install, you must take care not to directly set the INSTALL 311 make variable in your /etc/make.conf, /etc/src.conf, or on the 312 command line. If you wish to use the -C flag for all installs 313 you may be able to add INSTALL+=-C to /etc/make.conf or 314 /etc/src.conf. 315 31620130118: 317 The install(1) option -M has changed meaning and now takes an 318 argument that is a file or path to append logs to. In the 319 unlikely event that -M was the last option on the command line 320 and the command line contained at least two files and a target 321 directory the first file will have logs appended to it. The -M 322 option served little practical purpose in the last decade so its 323 use is expected to be extremely rare. 324 32520121223: 326 After switching to Clang as the default compiler some users of ZFS 327 on i386 systems started to experience stack overflow kernel panics. 328 Please consider using 'options KSTACK_PAGES=4' in such configurations. 329 33020121222: 331 GEOM_LABEL now mangles label names read from file system metadata. 332 Mangling affect labels containing spaces, non-printable characters, 333 '%' or '"'. Device names in /etc/fstab and other places may need to 334 be updated. 335 33620121217: 337 By default, only the 10 most recent kernel dumps will be saved. To 338 restore the previous behaviour (no limit on the number of kernel dumps 339 stored in the dump directory) add the following line to /etc/rc.conf: 340 341 savecore_flags="" 342 34320121201: 344 With the addition of auditdistd(8), a new auditdistd user is now 345 required during installworld. "mergemaster -p" can be used to 346 add the user prior to installworld, as documented in the handbook. 347 34820121117: 349 The sin6_scope_id member variable in struct sockaddr_in6 is now 350 filled by the kernel before passing the structure to the userland via 351 sysctl or routing socket. This means the KAME-specific embedded scope 352 id in sin6_addr.s6_addr[2] is always cleared in userland application. 353 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 354 __FreeBSD_version is bumped to 1000025. 355 35620121105: 357 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 358 This means that the world and kernel will be compiled with clang 359 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 360 and /usr/bin/cpp. To disable this behavior and revert to building 361 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 362 of current may need to bootstrap WITHOUT_CLANG first if the clang 363 build fails (its compatibility window doesn't extend to the 9 stable 364 branch point). 365 36620121102: 367 The IPFIREWALL_FORWARD kernel option has been removed. Its 368 functionality now turned on by default. 369 37020121023: 371 The ZERO_COPY_SOCKET kernel option has been removed and 372 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 373 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 374 mechanism which is not safe and may result in kernel crashes. 375 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 376 driver supports disposeable external page sized mbuf storage. 377 Proper replacements for both zero-copy mechanisms are under 378 consideration and will eventually lead to complete removal 379 of the two kernel options. 380 38120121023: 382 The IPv4 network stack has been converted to network byte 383 order. The following modules need to be recompiled together 384 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 385 pf(4), ipfw(4), ng_ipfw(4), stf(4). 386 38720121022: 388 Support for non-MPSAFE filesystems was removed from VFS. The 389 VFS_VERSION was bumped, all filesystem modules shall be 390 recompiled. 391 39220121018: 393 All the non-MPSAFE filesystems have been disconnected from 394 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 395 portalfs, smbfs, xfs. 396 39720121016: 398 The interface cloning API and ABI has changed. The following 399 modules need to be recompiled together with kernel: 400 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 401 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 402 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 403 40420121015: 405 The sdhci driver was split in two parts: sdhci (generic SD Host 406 Controller logic) and sdhci_pci (actual hardware driver). 407 No kernel config modifications are required, but if you 408 load sdhc as a module you must switch to sdhci_pci instead. 409 41020121014: 411 Import the FUSE kernel and userland support into base system. 412 41320121013: 414 The GNU sort(1) program has been removed since the BSD-licensed 415 sort(1) has been the default for quite some time and no serious 416 problems have been reported. The corresponding WITH_GNU_SORT 417 knob has also gone. 418 41920121006: 420 The pfil(9) API/ABI for AF_INET family has been changed. Packet 421 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 422 with new kernel. 423 42420121001: 425 The net80211(4) ABI has been changed to allow for improved driver 426 PS-POLL and power-save support. All wireless drivers need to be 427 recompiled to work with the new kernel. 428 42920120913: 430 The random(4) support for the VIA hardware random number 431 generator (`PADLOCK') is no longer enabled unconditionally. 432 Add the padlock_rng device in the custom kernel config if 433 needed. The GENERIC kernels on i386 and amd64 do include the 434 device, so the change only affects the custom kernel 435 configurations. 436 43720120908: 438 The pf(4) packet filter ABI has been changed. pfctl(8) and 439 snmp_pf module need to be recompiled to work with new kernel. 440 44120120828: 442 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 443 to -HEAD. Pools that have empty_bpobj in active state can not be 444 imported read-write with ZFS implementations that do not support 445 this feature. For more information read the zpool-features(5) 446 manual page. 447 44820120727: 449 The sparc64 ZFS loader has been changed to no longer try to auto- 450 detect ZFS providers based on diskN aliases but now requires these 451 to be explicitly listed in the OFW boot-device environment variable. 452 45320120712: 454 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 455 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 456 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 457 45820120712: 459 The following sysctls and tunables have been renamed for consistency 460 with other variables: 461 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 462 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 463 46420120628: 465 The sort utility has been replaced with BSD sort. For now, GNU sort 466 is also available as "gnusort" or the default can be set back to 467 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 468 installed as "bsdsort". 469 47020120611: 471 A new version of ZFS (pool version 5000) has been merged to -HEAD. 472 Starting with this version the old system of ZFS pool versioning 473 is superseded by "feature flags". This concept enables forward 474 compatibility against certain future changes in functionality of ZFS 475 pools. The first read-only compatible "feature flag" for ZFS pools 476 is named "com.delphix:async_destroy". For more information 477 read the new zpool-features(5) manual page. 478 Please refer to the "ZFS notes" section of this file for information 479 on upgrading boot ZFS pools. 480 48120120417: 482 The malloc(3) implementation embedded in libc now uses sources imported 483 as contrib/jemalloc. The most disruptive API change is to 484 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 485 delete it prior to installworld, and optionally re-create it using the 486 new format after rebooting. See malloc.conf(5) for details 487 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 488 NAMESPACE section). 489 49020120328: 491 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 492 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 493 now spelled mips. This is to aid compatibility with third-party 494 software that expects this naming scheme in uname(3). Little-endian 495 settings are unchanged. If you are updating a big-endian mips64 machine 496 from before this change, you may need to set MACHINE_ARCH=mips64 in 497 your environment before the new build system will recognize your machine. 498 49920120306: 500 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 501 platforms. 502 50320120229: 504 Now unix domain sockets behave "as expected" on nullfs(5). Previously 505 nullfs(5) did not pass through all behaviours to the underlying layer, 506 as a result if we bound to a socket on the lower layer we could connect 507 only to the lower path; if we bound to the upper layer we could connect 508 only to the upper path. The new behavior is one can connect to both the 509 lower and the upper paths regardless what layer path one binds to. 510 51120120211: 512 The getifaddrs upgrade path broken with 20111215 has been restored. 513 If you have upgraded in between 20111215 and 20120209 you need to 514 recompile libc again with your kernel. You still need to recompile 515 world to be able to configure CARP but this restriction already 516 comes from 20111215. 517 51820120114: 519 The set_rcvar() function has been removed from /etc/rc.subr. All 520 base and ports rc.d scripts have been updated, so if you have a 521 port installed with a script in /usr/local/etc/rc.d you can either 522 hand-edit the rcvar= line, or reinstall the port. 523 524 An easy way to handle the mass-update of /etc/rc.d: 525 rm /etc/rc.d/* && mergemaster -i 526 52720120109: 528 panic(9) now stops other CPUs in the SMP systems, disables interrupts 529 on the current CPU and prevents other threads from running. 530 This behavior can be reverted using the kern.stop_scheduler_on_panic 531 tunable/sysctl. 532 The new behavior can be incompatible with kern.sync_on_panic. 533 53420111215: 535 The carp(4) facility has been changed significantly. Configuration 536 of the CARP protocol via ifconfig(8) has changed, as well as format 537 of CARP events submitted to devd(8) has changed. See manual pages 538 for more information. The arpbalance feature of carp(4) is currently 539 not supported anymore. 540 541 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 542 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 543 need to be recompiled. 544 54520111122: 546 The acpi_wmi(4) status device /dev/wmistat has been renamed to 547 /dev/wmistat0. 548 54920111108: 550 The option VFS_ALLOW_NONMPSAFE option has been added in order to 551 explicitely support non-MPSAFE filesystems. 552 It is on by default for all supported platform at this present 553 time. 554 55520111101: 556 The broken amd(4) driver has been replaced with esp(4) in the amd64, 557 i386 and pc98 GENERIC kernel configuration files. 558 55920110930: 560 sysinstall has been removed 561 56220110923: 563 The stable/9 branch created in subversion. This corresponds to the 564 RELENG_9 branch in CVS. 565 56620110913: 567 This commit modifies vfs_register() so that it uses a hash 568 calculation to set vfc_typenum, which is enabled by default. 569 The first time a system is booted after this change, the 570 vfc_typenum values will change for all file systems. The 571 main effect of this is a change to the NFS server file handles 572 for file systems that use vfc_typenum in their fsid, such as ZFS. 573 It will, however, prevent vfc_typenum from changing when file 574 systems are loaded in a different order for subsequent reboots. 575 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 576 until you are ready to remount all NFS clients after a reboot. 577 57820110828: 579 Bump the shared library version numbers for libraries that 580 do not use symbol versioning, have changed the ABI compared 581 to stable/8 and which shared library version was not bumped. 582 Done as part of 9.0-RELEASE cycle. 583 58420110815: 585 During the merge of Capsicum features, the fget(9) KPI was modified. 586 This may require the rebuilding of out-of-tree device drivers -- 587 issues have been reported specifically with the nVidia device driver. 588 __FreeBSD_version is bumped to 900041. 589 590 Also, there is a period between 20110811 and 20110814 where the 591 special devices /dev/{stdin,stdout,stderr} did not work correctly. 592 Building world from a kernel during that window may not work. 593 59420110628: 595 The packet filter (pf) code has been updated to OpenBSD 4.5. 596 You need to update userland tools to be in sync with kernel. 597 This update breaks backward compatibility with earlier pfsync(4) 598 versions. Care must be taken when updating redundant firewall setups. 599 60020110608: 601 The following sysctls and tunables are retired on x86 platforms: 602 machdep.hlt_cpus 603 machdep.hlt_logical_cpus 604 The following sysctl is retired: 605 machdep.hyperthreading_allowed 606 The sysctls were supposed to provide a way to dynamically offline and 607 online selected CPUs on x86 platforms, but the implementation has not 608 been reliable especially with SCHED_ULE scheduler. 609 machdep.hyperthreading_allowed tunable is still available to ignore 610 hyperthreading CPUs at OS level. 611 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 612 where X is an APIC ID of a CPU. Be advised, though, that disabling 613 CPUs in non-uniform fashion will result in non-uniform topology and 614 may lead to sub-optimal system performance with SCHED_ULE, which is 615 a default scheduler. 616 61720110607: 618 cpumask_t type is retired and cpuset_t is used in order to describe 619 a mask of CPUs. 620 62120110531: 622 Changes to ifconfig(8) for dynamic address family detection mandate 623 that you are running a kernel of 20110525 or later. Make sure to 624 follow the update procedure to boot a new kernel before installing 625 world. 626 62720110513: 628 Support for sun4v architecture is officially dropped 629 63020110503: 631 Several KPI breaking changes have been committed to the mii(4) layer, 632 the PHY drivers and consequently some Ethernet drivers using mii(4). 633 This means that miibus.ko and the modules of the affected Ethernet 634 drivers need to be recompiled. 635 636 Note to kernel developers: Given that the OUI bit reversion problem 637 was fixed as part of these changes all mii(4) commits related to OUIs, 638 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 639 handling, no longer can be merged verbatim to stable/8 and previous 640 branches. 641 64220110430: 643 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 644 into their kernel configurations along with 'device pci'. 645 64620110427: 647 The default NFS client is now the new NFS client, so fstype "newnfs" 648 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 649 Although mounts via fstype "nfs" will usually work without userland 650 changes, it is recommended that the mount(8) and mount_nfs(8) 651 commands be rebuilt from sources and that a link to mount_nfs called 652 mount_oldnfs be created. The new client is compiled into the 653 kernel with "options NFSCL" and this is needed for diskless root 654 file systems. The GENERIC kernel configs have been changed to use 655 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 656 To use the regular/old client, you can "mount -t oldnfs ...". For 657 a diskless root file system, you must also include a line like: 658 659 vfs.root.mountfrom="oldnfs:" 660 661 in the boot/loader.conf on the root fs on the NFS server to make 662 a diskless root fs use the old client. 663 66420110424: 665 The GENERIC kernels for all architectures now default to the new 666 CAM-based ATA stack. It means that all legacy ATA drivers were 667 removed and replaced by respective CAM drivers. If you are using 668 ATA device names in /etc/fstab or other places, make sure to update 669 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 670 where 'Y's are the sequential numbers starting from zero for each type 671 in order of detection, unless configured otherwise with tunables, 672 see cam(4)). There will be symbolic links created in /dev/ to map 673 old adX devices to the respective adaY. They should provide basic 674 compatibility for file systems mounting in most cases, but they do 675 not support old user-level APIs and do not have respective providers 676 in GEOM. Consider using updated management tools with new device names. 677 678 It is possible to load devices ahci, ata, siis and mvs as modules, 679 but option ATA_CAM should remain in kernel configuration to make ata 680 module work as CAM driver supporting legacy ATA controllers. Device ata 681 still can be used in modular fashion (atacore + ...). Modules atadisk 682 and atapi* are not used and won't affect operation in ATA_CAM mode. 683 Note that to use CAM-based ATA kernel should include CAM devices 684 scbus, pass, da (or explicitly ada), cd and optionally others. All of 685 them are parts of the cam module. 686 687 ataraid(4) functionality is now supported by the RAID GEOM class. 688 To use it you can load geom_raid kernel module and use graid(8) tool 689 for management. Instead of /dev/arX device names, use /dev/raid/rX. 690 691 No kernel config options or code have been removed, so if a problem 692 arises, please report it and optionally revert to the old ATA stack. 693 In order to do it you can remove from the kernel config: 694 options ATA_CAM 695 device ahci 696 device mvs 697 device siis 698 , and instead add back: 699 device atadisk # ATA disk drives 700 device ataraid # ATA RAID drives 701 device atapicd # ATAPI CDROM drives 702 device atapifd # ATAPI floppy drives 703 device atapist # ATAPI tape drives 704 70520110423: 706 The default NFS server has been changed to the new server, which 707 was referred to as the experimental server. If you need to switch 708 back to the old NFS server, you must now put the "-o" option on 709 both the mountd and nfsd commands. This can be done using the 710 mountd_flags and nfs_server_flags rc.conf variables until an 711 update to the rc scripts is committed, which is coming soon. 712 71320110418: 714 The GNU Objective-C runtime library (libobjc), and other Objective-C 715 related components have been removed from the base system. If you 716 require an Objective-C library, please use one of the available ports. 717 71820110331: 719 ath(4) has been split into bus- and device- modules. if_ath contains 720 the HAL, the TX rate control and the network device code. if_ath_pci 721 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 722 contains the AHB glue. Users need to load both if_ath_pci and if_ath 723 in order to use ath on everything else. 724 725 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 726 need to load if_ath and if_ath_pci for ath(4) operation. 727 72820110314: 729 As part of the replacement of sysinstall, the process of building 730 release media has changed significantly. For details, please re-read 731 release(7), which has been updated to reflect the new build process. 732 73320110218: 734 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 735 is the last available version under GPLv2. It brings a number of new 736 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 737 4.1 and SSE 4.2), better support for powerpc64, a number of new 738 directives, and lots of other small improvements. See the ChangeLog 739 file in contrib/binutils for the full details. 740 74120110218: 742 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 743 compliant, and will now use half of hash for authentication. 744 This will break interoperability with all stacks (including all 745 actual FreeBSD versions) who implement 746 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 747 authentication). 748 The only workaround with such peers is to use another HMAC 749 algorithm for IPsec ("phase 2") authentication. 750 75120110207: 752 Remove the uio_yield prototype and symbol. This function has 753 been misnamed since it was introduced and should not be 754 globally exposed with this name. The equivalent functionality 755 is now available using kern_yield(curthread->td_user_pri). 756 The function remains undocumented. 757 75820110112: 759 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 760 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 761 for scalar sysctls is defined but disabled. Code that needs 762 UQUAD to pass the type checking that must compile on older 763 systems where the define is not present can check against 764 __FreeBSD_version >= 900030. 765 766 The system dialog(1) has been replaced with a new version previously 767 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 768 with the previous version, but the libdialog associated with it has 769 a largely incompatible API. As such, the original version of libdialog 770 will be kept temporarily as libodialog, until its base system consumers 771 are replaced or updated. Bump __FreeBSD_version to 900030. 772 77320110103: 774 If you are trying to run make universe on a -stable system, and you get 775 the following warning: 776 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 777 unknown. config(8) likely too old." 778 or something similar to it, then you must upgrade your -stable system 779 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 780 stable/8) or build the config from the latest stable/8 branch and 781 install it on your system. 782 783 Prior to this date, building a current universe on 8-stable system from 784 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 785 error in the first kernel build phase. A new config on those old 786 systems will fix that problem for older versions of -current. 787 78820101228: 789 The TCP stack has been modified to allow Khelp modules to interact with 790 it via helper hook points and store per-connection data in the TCP 791 control block. Bump __FreeBSD_version to 900029. User space tools that 792 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 793 be recompiled. 794 79520101114: 796 Generic IEEE 802.3 annex 31B full duplex flow control support has been 797 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 798 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 799 to take advantage of it instead of using custom implementations. This 800 means that these drivers now no longer unconditionally advertise 801 support for flow control but only do so if flow control is a selected 802 media option. This was implemented in the generic support that way in 803 order to allow flow control to be switched on and off via ifconfig(8) 804 with the PHY specific default to typically off in order to protect 805 from unwanted effects. Consequently, if you used flow control with 806 one of the above mentioned drivers you now need to explicitly enable 807 it, for example via: 808 ifconfig bge0 media auto mediaopt flowcontrol 809 810 Along with the above mentioned changes generic support for setting 811 1000baseT master mode also has been added and brgphy(4), ciphy(4), 812 e1000phy(4) as well as ip1000phy(4) have been converted to take 813 advantage of it. This means that these drivers now no longer take the 814 link0 parameter for selecting master mode but the master media option 815 has to be used instead, for example like in the following: 816 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 817 818 Selection of master mode now is also available with all other PHY 819 drivers supporting 1000baseT. 820 82120101111: 822 The TCP stack has received a significant update to add support for 823 modularised congestion control and generally improve the clarity of 824 congestion control decisions. Bump __FreeBSD_version to 900025. User 825 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 826 sockstat) need to be recompiled. 827 82820101002: 829 The man(1) utility has been replaced by a new version that no longer 830 uses /etc/manpath.config. Please consult man.conf(5) for how to 831 migrate local entries to the new format. 832 83320100928: 834 The copyright strings printed by login(1) and sshd(8) at the time of a 835 new connection have been removed to follow other operating systems and 836 upstream sshd. 837 83820100915: 839 A workaround for a fixed ld bug has been removed in kernel code, 840 so make sure that your system ld is built from sources after 841 revision 210245 from 2010-07-19 (r211583 if building head kernel 842 on stable/8, r211584 for stable/7; both from 2010-08-21). 843 A symptom of incorrect ld version is different addresses for 844 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 845 84620100913: 847 The $ipv6_prefer variable in rc.conf(5) has been split into 848 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 849 850 The $ip6addrctl_policy is a variable to choose a pre-defined 851 address selection policy set by ip6addrctl(8). A value 852 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 853 default is "AUTO". 854 855 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 856 flag (see an entry of 20090926) is set on an interface with no 857 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 858 security reason. If you want IPv6 link-local address on all 859 interfaces by default, set this to "YES". 860 861 The old ipv6_prefer="YES" is equivalent to 862 ipv6_activate_all_interfaces="YES" and 863 ip6addrctl_policy="ipv6_prefer". 864 86520100913: 866 DTrace has grown support for userland tracing. Due to this, DTrace is 867 now i386 and amd64 only. 868 dtruss(1) is now installed by default on those systems and a new 869 kernel module is needed for userland tracing: fasttrap. 870 No changes to your kernel config file are necessary to enable 871 userland tracing, but you might consider adding 'STRIP=' and 872 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 873 to have informative userland stack traces in DTrace (ustack). 874 87520100725: 876 The acpi_aiboost(4) driver has been removed in favor of the new 877 aibs(4) driver. You should update your kernel configuration file. 878 87920100722: 880 BSD grep has been imported to the base system and it is built by 881 default. It is completely BSD licensed, highly GNU-compatible, uses 882 less memory than its GNU counterpart and has a small codebase. 883 However, it is slower than its GNU counterpart, which is mostly 884 noticeable for larger searches, for smaller ones it is measurable 885 but not significant. The reason is complex, the most important factor 886 is that we lack a modern and efficient regex library and GNU 887 overcomes this by optimizing the searches internally. Future work 888 on improving the regex performance is planned, for the meantime, 889 users that need better performance, can build GNU grep instead by 890 setting the WITH_GNU_GREP knob. 891 89220100713: 893 Due to the import of powerpc64 support, all existing powerpc kernel 894 configuration files must be updated with a machine directive like this: 895 machine powerpc powerpc 896 897 In addition, an updated config(8) is required to build powerpc kernels 898 after this change. 899 90020100713: 901 A new version of ZFS (version 15) has been merged to -HEAD. 902 This version uses a python library for the following subcommands: 903 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 904 For full functionality of these commands the following port must 905 be installed: sysutils/py-zfs 906 90720100429: 908 'vm_page's are now hashed by physical address to an array of mutexes. 909 Currently this is only used to serialize access to hold_count. Over 910 time the page queue mutex will be peeled away. This changes the size 911 of pmap on every architecture. And requires all callers of vm_page_hold 912 and vm_page_unhold to be updated. 913 91420100402: 915 WITH_CTF can now be specified in src.conf (not recommended, there 916 are some problems with static executables), make.conf (would also 917 affect ports which do not use GNU make and do not override the 918 compile targets) or in the kernel config (via "makeoptions 919 WITH_CTF=yes"). 920 When WITH_CTF was specified there before this was silently ignored, 921 so make sure that WITH_CTF is not used in places which could lead 922 to unwanted behavior. 923 92420100311: 925 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 926 to allow 32-bit compatibility on non-x86 platforms. All kernel 927 configurations on amd64 and ia64 platforms using these options must 928 be modified accordingly. 929 93020100113: 931 The utmp user accounting database has been replaced with utmpx, 932 the user accounting interface standardized by POSIX. 933 Unfortunately the semantics of utmp and utmpx don't match, 934 making it practically impossible to support both interfaces. 935 The user accounting database is used by tools like finger(1), 936 last(1), talk(1), w(1) and ac(8). 937 938 All applications in the base system use utmpx. This means only 939 local binaries (e.g. from the ports tree) may still use these 940 utmp database files. These applications must be rebuilt to make 941 use of utmpx. 942 943 After the system has been upgraded, it is safe to remove the old 944 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 945 assuming their contents is of no importance anymore. Old wtmp 946 databases can only be used by last(1) and ac(8) after they have 947 been converted to the new format using wtmpcvt(1). 948 94920100108: 950 Introduce the kernel thread "deadlock resolver" (which can be enabled 951 via the DEADLKRES option, see NOTES for more details) and the 952 sleepq_type() function for sleepqueues. 953 95420091202: 955 The rc.firewall and rc.firewall6 were unified, and 956 rc.firewall6 and rc.d/ip6fw were removed. 957 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 958 variables are obsoleted. Instead, the following new rc 959 variables are added to rc.d/ipfw: 960 961 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 962 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 963 firewall_simple_onet_ipv6, firewall_trusted_ipv6 964 965 The meanings correspond to the relevant IPv4 variables. 966 96720091125: 968 8.0-RELEASE. 969 97020091113: 971 The default terminal emulation for syscons(4) has been changed 972 from cons25 to xterm on all platforms except pc98. This means 973 that the /etc/ttys file needs to be updated to ensure correct 974 operation of applications on the console. 975 976 The terminal emulation style can be toggled per window by using 977 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 978 options can be used to change the compile-time default back to 979 cons25. 980 981 To prevent graphical artifacts, make sure the TERM environment 982 variable is set to match the terminal emulation that is being 983 performed by syscons(4). 984 98520091109: 986 The layout of the structure ieee80211req_scan_result has changed. 987 Applications that require wireless scan results (e.g. ifconfig(8)) 988 from net80211 need to be recompiled. 989 990 Applications such as wpa_supplicant(8) may require a full world 991 build without using NO_CLEAN in order to get synchronized with the 992 new structure. 993 99420091025: 995 The iwn(4) driver has been updated to support the 5000 and 5150 series. 996 There's one kernel module for each firmware. Adding "device iwnfw" 997 to the kernel configuration file means including all three firmware 998 images inside the kernel. If you want to include just the one for 999 your wireless card, use the devices iwn4965fw, iwn5000fw or 1000 iwn5150fw. 1001 100220090926: 1003 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1004 into rc.d/netif. The changes are the following: 1005 1006 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1007 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1008 Note that both variables need the "inet6" keyword at the head. 1009 1010 Do not set $ipv6_network_interfaces manually if you do not 1011 understand what you are doing. It is not needed in most cases. 1012 1013 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1014 they are obsolete. 1015 1016 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1017 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1018 1019 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1020 all configured interfaces have "inet6 accept_rtadv" in the 1021 $ifconfig_IF_ipv6. These are for backward compatibility. 1022 1023 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1024 functionality of interfaces with no corresponding 1025 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1026 and the default address selection policy of ip6addrctl(8) 1027 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1028 Note that if you want to configure IPv6 functionality on the 1029 disabled interfaces after boot, first you need to clear the flag by 1030 using ifconfig(8) like: 1031 1032 ifconfig em0 inet6 -ifdisabled 1033 1034 If YES, the default address selection policy is set as 1035 IPv6-preferred. 1036 1037 The default value of $ipv6_prefer is NO. 1038 1039 4. If your system need to receive Router Advertisement messages, 1040 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1041 scripts automatically invoke rtsol(8) when the interface becomes 1042 UP. The Router Advertisement messages are used for SLAAC 1043 (State-Less Address AutoConfiguration). 1044 104520090922: 1046 802.11s D3.03 support was committed. This is incompatible with the 1047 previous code, which was based on D3.0. 1048 104920090912: 1050 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1051 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1052 control whether accepting Router Advertisement messages or not. 1053 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1054 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1055 The ifconfig(8) utility now supports these flags. 1056 105720090910: 1058 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1059 mount(8) and -a option for df(1) to see them. 1060 106120090825: 1062 The old tunable hw.bus.devctl_disable has been superseded by 1063 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1064 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1065 is 1000. 1066 106720090813: 1068 Remove the option STOP_NMI. The default action is now to use NMI only 1069 for KDB via the newly introduced function stop_cpus_hard() and 1070 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1071 107220090803: 1073 The stable/8 branch created in subversion. This corresponds to the 1074 RELENG_8 branch in CVS. 1075 107620090719: 1077 Bump the shared library version numbers for all libraries that do not 1078 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1079 __FreeBSD_version to 800105. 1080 108120090714: 1082 Due to changes in the implementation of virtual network stack support, 1083 all network-related kernel modules must be recompiled. As this change 1084 breaks the ABI, bump __FreeBSD_version to 800104. 1085 108620090713: 1087 The TOE interface to the TCP syncache has been modified to remove 1088 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1089 The cxgb driver is the only TOE consumer affected by this change, and 1090 needs to be recompiled along with the kernel. As this change breaks 1091 the ABI, bump __FreeBSD_version to 800103. 1092 109320090712: 1094 Padding has been added to struct tcpcb, sackhint and tcpstat in 1095 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1096 maintaining the ABI. However, this change breaks the ABI, so bump 1097 __FreeBSD_version to 800102. User space tools that rely on the size of 1098 any of these structs (e.g. sockstat) need to be recompiled. 1099 110020090630: 1101 The NFS_LEGACYRPC option has been removed along with the old kernel 1102 RPC implementation that this option selected. Kernel configurations 1103 may need to be adjusted. 1104 110520090629: 1106 The network interface device nodes at /dev/net/<interface> have been 1107 removed. All ioctl operations can be performed the normal way using 1108 routing sockets. The kqueue functionality can generally be replaced 1109 with routing sockets. 1110 111120090628: 1112 The documentation from the FreeBSD Documentation Project (Handbook, 1113 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1114 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1115 111620090624: 1117 The ABI of various structures related to the SYSV IPC API have been 1118 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1119 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1120 800100. 1121 112220090622: 1123 Layout of struct vnet has changed as routing related variables were 1124 moved to their own Vimage module. Modules need to be recompiled. Bump 1125 __FreeBSD_version to 800099. 1126 112720090619: 1128 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1129 respectively. As long as no more than 16 groups per process are used, 1130 no changes should be visible. When more than 16 groups are used, old 1131 binaries may fail if they call getgroups() or getgrouplist() with 1132 statically sized storage. Recompiling will work around this, but 1133 applications should be modified to use dynamically allocated storage 1134 for group arrays as POSIX.1-2008 does not cap an implementation's 1135 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1136 1137 NFS and portalfs mounts may also be affected as the list of groups is 1138 truncated to 16. Users of NFS who use more than 16 groups, should 1139 take care that negative group permissions are not used on the exported 1140 file systems as they will not be reliable unless a GSSAPI based 1141 authentication method is used. 1142 114320090616: 1144 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1145 option compiles in the support for adaptive spinning for lockmgrs 1146 which want to enable it. The lockinit() function now accepts the flag 1147 LK_ADAPTIVE in order to make the lock object subject to adaptive 1148 spinning when both held in write and read mode. 1149 115020090613: 1151 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1152 changed. User applications that use this ioctl need to be rebuilt. 1153 115420090611: 1155 The layout of struct thread has changed. Kernel and modules need to 1156 be rebuilt. 1157 115820090608: 1159 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1160 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1161 116220090602: 1163 window(1) has been removed from the base system. It can now be 1164 installed from ports. The port is called misc/window. 1165 116620090601: 1167 The way we are storing and accessing `routing table' entries has 1168 changed. Programs reading the FIB, like netstat, need to be 1169 re-compiled. 1170 117120090601: 1172 A new netisr implementation has been added for FreeBSD 8. Network 1173 file system modules, such as igmp, ipdivert, and others, should be 1174 rebuilt. 1175 Bump __FreeBSD_version to 800096. 1176 117720090530: 1178 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1179 more valid. 1180 118120090530: 1182 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1183 Bump __FreeBSD_version to 800094. 1184 118520090529: 1186 Add mnt_xflag field to 'struct mount'. File system modules need to be 1187 rebuilt. 1188 Bump __FreeBSD_version to 800093. 1189 119020090528: 1191 The compiling option ADAPTIVE_SX has been retired while it has been 1192 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1193 The KPI for sx_init_flags() changes as accepting flags: 1194 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1195 been introduced in order to handle the reversed logic. 1196 Bump __FreeBSD_version to 800092. 1197 119820090527: 1199 Add support for hierarchical jails. Remove global securelevel. 1200 Bump __FreeBSD_version to 800091. 1201 120220090523: 1203 The layout of struct vnet_net has changed, therefore modules 1204 need to be rebuilt. 1205 Bump __FreeBSD_version to 800090. 1206 120720090523: 1208 The newly imported zic(8) produces a new format in the output. Please 1209 run tzsetup(8) to install the newly created data to /etc/localtime. 1210 121120090520: 1212 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1213 hw.usb.* and is now consistent again with previous releases. 1214 121520090520: 1216 802.11 monitor mode support was revised and driver api's were changed. 1217 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1218 of DLT_IEEE802_11. No user-visible data structures were changed but 1219 applications that use DLT_IEEE802_11 may require changes. 1220 Bump __FreeBSD_version to 800088. 1221 122220090430: 1223 The layout of the following structs has changed: sysctl_oid, 1224 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1225 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1226 panics may be experienced. World rebuild is required for 1227 correctly checking networking state from userland. 1228 Bump __FreeBSD_version to 800085. 1229 123020090429: 1231 MLDv2 and Source-Specific Multicast (SSM) have been merged 1232 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1233 The implementation of SSM within FreeBSD's IPv6 stack closely 1234 follows the IPv4 implementation. 1235 1236 For kernel developers: 1237 1238 * The most important changes are that the ip6_output() and 1239 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1240 and this lock has been downgraded to a non-recursive mutex. 1241 1242 * As with the changes to the IPv4 stack to support SSM, filtering 1243 of inbound multicast traffic must now be performed by transport 1244 protocols within the IPv6 stack. This does not apply to TCP and 1245 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1246 1247 * The KPIs used by IPv6 multicast are similar to those used by 1248 the IPv4 stack, with the following differences: 1249 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1250 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1251 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1252 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1253 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1254 for MLDv1 have an additional 'timer' argument which is used to 1255 jitter the initial membership report for the solicited-node 1256 multicast membership on-link. 1257 * This is not strictly needed for MLDv2, which already jitters 1258 its report transmissions. However, the 'timer' argument is 1259 preserved in case MLDv1 is active on the interface. 1260 1261 * The KAME linked-list based IPv6 membership implementation has 1262 been refactored to use a vector similar to that used by the IPv4 1263 stack. 1264 Code which maintains a list of its own multicast memberships 1265 internally, e.g. carp, has been updated to reflect the new 1266 semantics. 1267 1268 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1269 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1270 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1271 implementation constraint which needs to be addressed in HEAD. 1272 1273 For application developers: 1274 1275 * The changes are broadly similar to those made for the IPv4 1276 stack. 1277 1278 * The use of IPv4 and IPv6 multicast socket options on the same 1279 socket, using mapped addresses, HAS NOT been tested or supported. 1280 1281 * There are a number of issues with the implementation of various 1282 IPv6 multicast APIs which need to be resolved in the API surface 1283 before the implementation is fully compatible with KAME userland 1284 use, and these are mostly to do with interface index treatment. 1285 1286 * The literature available discusses the use of either the delta / ASM 1287 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1288 using setsourcefilter(3)/getsourcefilter(3). For more information 1289 please refer to RFC 3768, 'Socket Interface Extensions for 1290 Multicast Source Filters'. 1291 1292 * Applications which use the published RFC 3678 APIs should be fine. 1293 1294 For systems administrators: 1295 1296 * The mtest(8) utility has been refactored to support IPv6, in 1297 addition to IPv4. Interface addresses are no longer accepted 1298 as arguments, their names must be used instead. The utility 1299 will map the interface name to its first IPv4 address as 1300 returned by getifaddrs(3). 1301 1302 * The ifmcstat(8) utility has also been updated to print the MLDv2 1303 endpoint state and source filter lists via sysctl(3). 1304 1305 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1306 loopback of IPv6 multicast datagrams by default; it defaults to 1 1307 to preserve the existing behaviour. Disabling multicast loopback is 1308 recommended for optimal system performance. 1309 1310 * The IPv6 MROUTING code has been changed to examine this sysctl 1311 instead of attempting to perform a group lookup before looping 1312 back forwarded datagrams. 1313 1314 Bump __FreeBSD_version to 800084. 1315 131620090422: 1317 Implement low-level Bluetooth HCI API. 1318 Bump __FreeBSD_version to 800083. 1319 132020090419: 1321 The layout of struct malloc_type, used by modules to register new 1322 memory allocation types, has changed. Most modules will need to 1323 be rebuilt or panics may be experienced. 1324 Bump __FreeBSD_version to 800081. 1325 132620090415: 1327 Anticipate overflowing inp_flags - add inp_flags2. 1328 This changes most offsets in inpcb, so checking v4 connection 1329 state will require a world rebuild. 1330 Bump __FreeBSD_version to 800080. 1331 133220090415: 1333 Add an llentry to struct route and struct route_in6. Modules 1334 embedding a struct route will need to be recompiled. 1335 Bump __FreeBSD_version to 800079. 1336 133720090414: 1338 The size of rt_metrics_lite and by extension rtentry has changed. 1339 Networking administration apps will need to be recompiled. 1340 The route command now supports show as an alias for get, weighting 1341 of routes, sticky and nostick flags to alter the behavior of stateful 1342 load balancing. 1343 Bump __FreeBSD_version to 800078. 1344 134520090408: 1346 Do not use Giant for kbdmux(4) locking. This is wrong and 1347 apparently causing more problems than it solves. This will 1348 re-open the issue where interrupt handlers may race with 1349 kbdmux(4) in polling mode. Typical symptoms include (but 1350 not limited to) duplicated and/or missing characters when 1351 low level console functions (such as gets) are used while 1352 interrupts are enabled (for example geli password prompt, 1353 mountroot prompt etc.). Disabling kbdmux(4) may help. 1354 135520090407: 1356 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1357 kernel modules referencing any of the above need to be recompiled. 1358 Bump __FreeBSD_version to 800075. 1359 136020090320: 1361 GEOM_PART has become the default partition slicer for storage devices, 1362 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1363 introduces some changes: 1364 1365 MSDOS/EBR: the devices created from MSDOS extended partition entries 1366 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1367 to devices with offset-based names. fstabs may need to be modified. 1368 1369 BSD: the "geometry does not match label" warning is harmless in most 1370 cases but it points to problems in file system misalignment with 1371 disk geometry. The "c" partition is now implicit, covers the whole 1372 top-level drive and cannot be (mis)used by users. 1373 1374 General: Kernel dumps are now not allowed to be written to devices 1375 whose partition types indicate they are meant to be used for file 1376 systems (or, in case of MSDOS partitions, as something else than 1377 the "386BSD" type). 1378 1379 Most of these changes date approximately from 200812. 1380 138120090319: 1382 The uscanner(4) driver has been removed from the kernel. This follows 1383 Linux removing theirs in 2.6 and making libusb the default interface 1384 (supported by sane). 1385 138620090319: 1387 The multicast forwarding code has been cleaned up. netstat(1) 1388 only relies on KVM now for printing bandwidth upcall meters. 1389 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1390 ip6_mroute_mod respectively. The config(5) options for statically 1391 compiling this code remain the same, i.e. 'options MROUTING'. 1392 139320090315: 1394 Support for the IFF_NEEDSGIANT network interface flag has been 1395 removed, which means that non-MPSAFE network device drivers are no 1396 longer supported. In particular, if_ar, if_sr, and network device 1397 drivers from the old (legacy) USB stack can no longer be built or 1398 used. 1399 140020090313: 1401 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1402 a bunch of new language catalog files have also been added. 1403 This means that some common libc messages are now localized and 1404 they depend on the LC_MESSAGES environmental variable. 1405 140620090313: 1407 The k8temp(4) driver has been renamed to amdtemp(4) since 1408 support for Family 10 and Family 11 CPU families was added. 1409 141020090309: 1411 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1412 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1413 1414 For kernel developers, the most important changes are that the 1415 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1416 and this lock has been downgraded to a non-recursive mutex. 1417 1418 Transport protocols (UDP, Raw IP) are now responsible for filtering 1419 inbound multicast traffic according to group membership and source 1420 filters. The imo_multicast_filter() KPI exists for this purpose. 1421 Transports which do not use multicast (SCTP, TCP) already reject 1422 multicast by default. Forwarding and receive performance may improve 1423 as a mutex acquisition is no longer needed in the ip_input() 1424 low-level input path. in_addmulti() and in_delmulti() are shimmed 1425 to new KPIs which exist to support SSM in-kernel. 1426 1427 For application developers, it is recommended that loopback of 1428 multicast datagrams be disabled for best performance, as this 1429 will still cause the lock to be taken for each looped-back 1430 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1431 be tuned to 0 to disable loopback by default; it defaults to 1 1432 to preserve the existing behaviour. 1433 1434 For systems administrators, to obtain best performance with 1435 multicast reception and multiple groups, it is always recommended 1436 that a card with a suitably precise hash filter is used. Hash 1437 collisions will still result in the lock being taken within the 1438 transport protocol input path to check group membership. 1439 1440 If deploying FreeBSD in an environment with IGMP snooping switches, 1441 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1442 enabled; this forces 224.0.0.0/24 group membership to be announced 1443 via IGMP. 1444 1445 The size of 'struct igmpstat' has changed; netstat needs to be 1446 recompiled to reflect this. 1447 Bump __FreeBSD_version to 800070. 1448 144920090309: 1450 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1451 updated to use it. This requires a buildworld/installworld in order to 1452 update the library and dependencies (usbconfig, etc). Its advisable to 1453 rebuild all ports which uses libusb. More specific directions are given 1454 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1455 libusb are no longer required and can be removed. 1456 145720090302: 1458 A workaround is committed to allow the creation of System V shared 1459 memory segment of size > 2 GB on the 64-bit architectures. 1460 Due to a limitation of the existing ABI, the shm_segsz member 1461 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1462 wrong for large segments. Note that limits must be explicitly 1463 raised to allow such segments to be created. 1464 146520090301: 1466 The layout of struct ifnet has changed, requiring a rebuild of all 1467 network device driver modules. 1468 146920090227: 1470 The /dev handling for the new USB stack has changed, a 1471 buildworld/installworld is required for libusb20. 1472 147320090223: 1474 The new USB2 stack has now been permanently moved in and all kernel and 1475 module names reverted to their previous values (eg, usb, ehci, ohci, 1476 ums, ...). The old usb stack can be compiled in by prefixing the name 1477 with the letter 'o', the old usb modules have been removed. 1478 Updating entry 20090216 for xorg and 20090215 for libmap may still 1479 apply. 1480 148120090217: 1482 The rc.conf(5) option if_up_delay has been renamed to 1483 defaultroute_delay to better reflect its purpose. If you have 1484 customized this setting in /etc/rc.conf you need to update it to 1485 use the new name. 1486 148720090216: 1488 xorg 7.4 wants to configure its input devices via hald which does not 1489 yet work with USB2. If the keyboard/mouse does not work in xorg then 1490 add 1491 Option "AllowEmptyInput" "off" 1492 to your ServerLayout section. This will cause X to use the configured 1493 kbd and mouse sections from your xorg.conf. 1494 149520090215: 1496 The GENERIC kernels for all architectures now default to the new USB2 1497 stack. No kernel config options or code have been removed so if a 1498 problem arises please report it and optionally revert to the old USB 1499 stack. If you are loading USB kernel modules or have a custom kernel 1500 that includes GENERIC then ensure that usb names are also changed over, 1501 eg uftdi -> usb2_serial_ftdi. 1502 1503 Older programs linked against the ports libusb 0.1 need to be 1504 redirected to the new stack's libusb20. /etc/libmap.conf can 1505 be used for this: 1506 # Map old usb library to new one for usb2 stack 1507 libusb-0.1.so.8 libusb20.so.1 1508 150920090209: 1510 All USB ethernet devices now attach as interfaces under the name ueN 1511 (eg. ue0). This is to provide a predictable name as vendors often 1512 change usb chipsets in a product without notice. 1513 151420090203: 1515 The ichsmb(4) driver has been changed to require SMBus slave 1516 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1517 All of the other SMBus controller drivers require left-justified 1518 slave addresses, so this change makes all the drivers provide the 1519 same interface. 1520 152120090201: 1522 INET6 statistics (struct ip6stat) was updated. 1523 netstat(1) needs to be recompiled. 1524 152520090119: 1526 NTFS has been removed from GENERIC kernel on amd64 to match 1527 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1528 will load ntfs.ko module automatically when NTFS support is 1529 actually needed, unless ntfs.ko is not installed or security 1530 level prohibits loading kernel modules. If either is the case, 1531 "options NTFS" has to be added into kernel config. 1532 153320090115: 1534 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1535 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1536 800061. User space tools that rely on the size of struct tcpcb in 1537 tcp_var.h (e.g. sockstat) need to be recompiled. 1538 153920081225: 1540 ng_tty(4) module updated to match the new TTY subsystem. 1541 Due to API change, user-level applications must be updated. 1542 New API support added to mpd5 CVS and expected to be present 1543 in next mpd5.3 release. 1544 154520081219: 1546 With __FreeBSD_version 800060 the makefs tool is part of 1547 the base system (it was a port). 1548 154920081216: 1550 The afdata and ifnet locks have been changed from mutexes to 1551 rwlocks, network modules will need to be re-compiled. 1552 155320081214: 1554 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1555 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1556 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1557 architecture and 40 bytes on 64-bit architecture. The userland 1558 applications "arp" and "ndp" have been updated accordingly. 1559 The output from "netstat -r" shows only routing entries and 1560 none of the L2 information. 1561 156220081130: 1563 __FreeBSD_version 800057 marks the switchover from the 1564 binary ath hal to source code. Users must add the line: 1565 1566 options AH_SUPPORT_AR5416 1567 1568 to their kernel config files when specifying: 1569 1570 device ath_hal 1571 1572 The ath_hal module no longer exists; the code is now compiled 1573 together with the driver in the ath module. It is now 1574 possible to tailor chip support (i.e. reduce the set of chips 1575 and thereby the code size); consult ath_hal(4) for details. 1576 157720081121: 1578 __FreeBSD_version 800054 adds memory barriers to 1579 <machine/atomic.h>, new interfaces to ifnet to facilitate 1580 multiple hardware transmit queues for cards that support 1581 them, and a lock-less ring-buffer implementation to 1582 enable drivers to more efficiently manage queueing of 1583 packets. 1584 158520081117: 1586 A new version of ZFS (version 13) has been merged to -HEAD. 1587 This version has zpool attribute "listsnapshots" off by 1588 default, which means "zfs list" does not show snapshots, 1589 and is the same as Solaris behavior. 1590 159120081028: 1592 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1593 159420081009: 1595 The uhci, ohci, ehci and slhci USB Host controller drivers have 1596 been put into separate modules. If you load the usb module 1597 separately through loader.conf you will need to load the 1598 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1599 controller add the following to loader.conf: 1600 1601 uhci_load="YES" 1602 ehci_load="YES" 1603 160420081009: 1605 The ABI used by the PMC toolset has changed. Please keep 1606 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1607 sync. 1608 160920081009: 1610 atapci kernel module now includes only generic PCI ATA 1611 driver. AHCI driver moved to ataahci kernel module. 1612 All vendor-specific code moved into separate kernel modules: 1613 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1614 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1615 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1616 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1617 161820080820: 1619 The TTY subsystem of the kernel has been replaced by a new 1620 implementation, which provides better scalability and an 1621 improved driver model. Most common drivers have been migrated to 1622 the new TTY subsystem, while others have not. The following 1623 drivers have not yet been ported to the new TTY layer: 1624 1625 PCI/ISA: 1626 cy, digi, rc, rp, sio 1627 1628 USB: 1629 ubser, ucycom 1630 1631 Line disciplines: 1632 ng_h4, ng_tty, ppp, sl, snp 1633 1634 Adding these drivers to your kernel configuration file shall 1635 cause compilation to fail. 1636 163720080818: 1638 ntpd has been upgraded to 4.2.4p5. 1639 164020080801: 1641 OpenSSH has been upgraded to 5.1p1. 1642 1643 For many years, FreeBSD's version of OpenSSH preferred DSA 1644 over RSA for host and user authentication keys. With this 1645 upgrade, we've switched to the vendor's default of RSA over 1646 DSA. This may cause upgraded clients to warn about unknown 1647 host keys even for previously known hosts. Users should 1648 follow the usual procedure for verifying host keys before 1649 accepting the RSA key. 1650 1651 This can be circumvented by setting the "HostKeyAlgorithms" 1652 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1653 command line. 1654 1655 Please note that the sequence of keys offered for 1656 authentication has been changed as well. You may want to 1657 specify IdentityFile in a different order to revert this 1658 behavior. 1659 166020080713: 1661 The sio(4) driver has been removed from the i386 and amd64 1662 kernel configuration files. This means uart(4) is now the 1663 default serial port driver on those platforms as well. 1664 1665 To prevent collisions with the sio(4) driver, the uart(4) driver 1666 uses different names for its device nodes. This means the 1667 onboard serial port will now most likely be called "ttyu0" 1668 instead of "ttyd0". You may need to reconfigure applications to 1669 use the new device names. 1670 1671 When using the serial port as a boot console, be sure to update 1672 /boot/device.hints and /etc/ttys before booting the new kernel. 1673 If you forget to do so, you can still manually specify the hints 1674 at the loader prompt: 1675 1676 set hint.uart.0.at="isa" 1677 set hint.uart.0.port="0x3F8" 1678 set hint.uart.0.flags="0x10" 1679 set hint.uart.0.irq="4" 1680 boot -s 1681 168220080609: 1683 The gpt(8) utility has been removed. Use gpart(8) to partition 1684 disks instead. 1685 168620080603: 1687 The version that Linuxulator emulates was changed from 2.4.2 1688 to 2.6.16. If you experience any problems with Linux binaries 1689 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1690 if it fixes the problem contact emulation mailing list. 1691 169220080525: 1693 ISDN4BSD (I4B) was removed from the src tree. You may need to 1694 update a your kernel configuration and remove relevant entries. 1695 169620080509: 1697 I have checked in code to support multiple routing tables. 1698 See the man pages setfib(1) and setfib(2). 1699 This is a hopefully backwards compatible version, 1700 but to make use of it you need to compile your kernel 1701 with options ROUTETABLES=2 (or more up to 16). 1702 170320080420: 1704 The 802.11 wireless support was redone to enable multi-bss 1705 operation on devices that are capable. The underlying device 1706 is no longer used directly but instead wlanX devices are 1707 cloned with ifconfig. This requires changes to rc.conf files. 1708 For example, change: 1709 ifconfig_ath0="WPA DHCP" 1710 to 1711 wlans_ath0=wlan0 1712 ifconfig_wlan0="WPA DHCP" 1713 see rc.conf(5) for more details. In addition, mergemaster of 1714 /etc/rc.d is highly recommended. Simultaneous update of userland 1715 and kernel wouldn't hurt either. 1716 1717 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1718 modules were merged into the base wlan module. All references 1719 to these modules (e.g. in kernel config files) must be removed. 1720 172120080408: 1722 psm(4) has gained write(2) support in native operation level. 1723 Arbitrary commands can be written to /dev/psm%d and status can 1724 be read back from it. Therefore, an application is responsible 1725 for status validation and error recovery. It is a no-op in 1726 other operation levels. 1727 172820080312: 1729 Support for KSE threading has been removed from the kernel. To 1730 run legacy applications linked against KSE libmap.conf may 1731 be used. The following libmap.conf may be used to ensure 1732 compatibility with any prior release: 1733 1734 libpthread.so.1 libthr.so.1 1735 libpthread.so.2 libthr.so.2 1736 libkse.so.3 libthr.so.3 1737 173820080301: 1739 The layout of struct vmspace has changed. This affects libkvm 1740 and any executables that link against libkvm and use the 1741 kvm_getprocs() function. In particular, but not exclusively, 1742 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1743 The effects are minimal, but it's advisable to upgrade world 1744 nonetheless. 1745 174620080229: 1747 The latest em driver no longer has support in it for the 1748 82575 adapter, this is now moved to the igb driver. The 1749 split was done to make new features that are incompatible 1750 with older hardware easier to do. 1751 175220080220: 1753 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1754 likewise the kernel option is now GEOM_LINUX_LVM. 1755 175620080211: 1757 The default NFS mount mode has changed from UDP to TCP for 1758 increased reliability. If you rely on (insecurely) NFS 1759 mounting across a firewall you may need to update your 1760 firewall rules. 1761 176220080208: 1763 Belatedly note the addition of m_collapse for compacting 1764 mbuf chains. 1765 176620080126: 1767 The fts(3) structures have been changed to use adequate 1768 integer types for their members and so to be able to cope 1769 with huge file trees. The old fts(3) ABI is preserved 1770 through symbol versioning in libc, so third-party binaries 1771 using fts(3) should still work, although they will not take 1772 advantage of the extended types. At the same time, some 1773 third-party software might fail to build after this change 1774 due to unportable assumptions made in its source code about 1775 fts(3) structure members. Such software should be fixed 1776 by its vendor or, in the worst case, in the ports tree. 1777 FreeBSD_version 800015 marks this change for the unlikely 1778 case that a portable fix is impossible. 1779 178020080123: 1781 To upgrade to -current after this date, you must be running 1782 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1783 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1784 178520071128: 1786 The ADAPTIVE_GIANT kernel option has been retired because its 1787 functionality is the default now. 1788 178920071118: 1790 The AT keyboard emulation of sunkbd(4) has been turned on 1791 by default. In order to make the special symbols of the Sun 1792 keyboards driven by sunkbd(4) work under X these now have 1793 to be configured the same way as Sun USB keyboards driven 1794 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1795 1796 Option "XkbLayout" "us" 1797 Option "XkbRules" "xorg" 1798 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1799 180020071024: 1801 It has been decided that it is desirable to provide ABI 1802 backwards compatibility to the FreeBSD 4/5/6 versions of the 1803 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1804 broken with the introduction of PCI domain support (see the 1805 20070930 entry). Unfortunately, this required the ABI of 1806 PCIOCGETCONF to be broken again in order to be able to 1807 provide backwards compatibility to the old version of that 1808 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1809 again. As for prominent ports this affects neither pciutils 1810 nor xorg-server this time, the hal port needs to be rebuilt 1811 however. 1812 181320071020: 1814 The misnamed kthread_create() and friends have been renamed 1815 to kproc_create() etc. Many of the callers already 1816 used kproc_start().. 1817 I will return kthread_create() and friends in a while 1818 with implementations that actually create threads, not procs. 1819 Renaming corresponds with version 800002. 1820 182120071010: 1822 RELENG_7 branched. 1823 1824COMMON ITEMS: 1825 1826 General Notes 1827 ------------- 1828 Avoid using make -j when upgrading. While generally safe, there are 1829 sometimes problems using -j to upgrade. If your upgrade fails with 1830 -j, please try again without -j. From time to time in the past there 1831 have been problems using -j with buildworld and/or installworld. This 1832 is especially true when upgrading between "distant" versions (eg one 1833 that cross a major release boundary or several minor releases, or when 1834 several months have passed on the -current branch). 1835 1836 Sometimes, obscure build problems are the result of environment 1837 poisoning. This can happen because the make utility reads its 1838 environment when searching for values for global variables. To run 1839 your build attempts in an "environmental clean room", prefix all make 1840 commands with 'env -i '. See the env(1) manual page for more details. 1841 1842 When upgrading from one major version to another it is generally best 1843 to upgrade to the latest code in the currently installed branch first, 1844 then do an upgrade to the new branch. This is the best-tested upgrade 1845 path, and has the highest probability of being successful. Please try 1846 this approach before reporting problems with a major version upgrade. 1847 1848 When upgrading a live system, having a root shell around before 1849 installing anything can help undo problems. Not having a root shell 1850 around can lead to problems if pam has changed too much from your 1851 starting point to allow continued authentication after the upgrade. 1852 1853 ZFS notes 1854 --------- 1855 When upgrading the boot ZFS pool to a new version, always follow 1856 these two steps: 1857 1858 1.) recompile and reinstall the ZFS boot loader and boot block 1859 (this is part of "make buildworld" and "make installworld") 1860 1861 2.) update the ZFS boot block on your boot drive 1862 1863 The following example updates the ZFS boot block on the first 1864 partition (freebsd-boot) of a GPT partitioned drive ad0: 1865 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 1866 1867 Non-boot pools do not need these updates. 1868 1869 To build a kernel 1870 ----------------- 1871 If you are updating from a prior version of FreeBSD (even one just 1872 a few days old), you should follow this procedure. It is the most 1873 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1874 1875 make kernel-toolchain 1876 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1877 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1878 1879 To test a kernel once 1880 --------------------- 1881 If you just want to boot a kernel once (because you are not sure 1882 if it works, or if you want to boot a known bad kernel to provide 1883 debugging information) run 1884 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1885 nextboot -k testkernel 1886 1887 To just build a kernel when you know that it won't mess you up 1888 -------------------------------------------------------------- 1889 This assumes you are already running a CURRENT system. Replace 1890 ${arch} with the architecture of your machine (e.g. "i386", 1891 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1892 1893 cd src/sys/${arch}/conf 1894 config KERNEL_NAME_HERE 1895 cd ../compile/KERNEL_NAME_HERE 1896 make depend 1897 make 1898 make install 1899 1900 If this fails, go to the "To build a kernel" section. 1901 1902 To rebuild everything and install it on the current system. 1903 ----------------------------------------------------------- 1904 # Note: sometimes if you are running current you gotta do more than 1905 # is listed here if you are upgrading from a really old current. 1906 1907 <make sure you have good level 0 dumps> 1908 make buildworld 1909 make kernel KERNCONF=YOUR_KERNEL_HERE 1910 [1] 1911 <reboot in single user> [3] 1912 mergemaster -p [5] 1913 make installworld 1914 mergemaster -i [4] 1915 make delete-old [6] 1916 <reboot> 1917 1918 To cross-install current onto a separate partition 1919 -------------------------------------------------- 1920 # In this approach we use a separate partition to hold 1921 # current's root, 'usr', and 'var' directories. A partition 1922 # holding "/", "/usr" and "/var" should be about 2GB in 1923 # size. 1924 1925 <make sure you have good level 0 dumps> 1926 <boot into -stable> 1927 make buildworld 1928 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1929 <maybe newfs current's root partition> 1930 <mount current's root partition on directory ${CURRENT_ROOT}> 1931 make installworld DESTDIR=${CURRENT_ROOT} 1932 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1933 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1934 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1935 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1936 <reboot into current> 1937 <do a "native" rebuild/install as described in the previous section> 1938 <maybe install compatibility libraries from ports/misc/compat*> 1939 <reboot> 1940 1941 1942 To upgrade in-place from stable to current 1943 ---------------------------------------------- 1944 <make sure you have good level 0 dumps> 1945 make buildworld [9] 1946 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1947 [1] 1948 <reboot in single user> [3] 1949 mergemaster -p [5] 1950 make installworld 1951 mergemaster -i [4] 1952 make delete-old [6] 1953 <reboot> 1954 1955 Make sure that you've read the UPDATING file to understand the 1956 tweaks to various things you need. At this point in the life 1957 cycle of current, things change often and you are on your own 1958 to cope. The defaults can also change, so please read ALL of 1959 the UPDATING entries. 1960 1961 Also, if you are tracking -current, you must be subscribed to 1962 freebsd-current@freebsd.org. Make sure that before you update 1963 your sources that you have read and understood all the recent 1964 messages there. If in doubt, please track -stable which has 1965 much fewer pitfalls. 1966 1967 [1] If you have third party modules, such as vmware, you 1968 should disable them at this point so they don't crash your 1969 system on reboot. 1970 1971 [3] From the bootblocks, boot -s, and then do 1972 fsck -p 1973 mount -u / 1974 mount -a 1975 cd src 1976 adjkerntz -i # if CMOS is wall time 1977 Also, when doing a major release upgrade, it is required that 1978 you boot into single user mode to do the installworld. 1979 1980 [4] Note: This step is non-optional. Failure to do this step 1981 can result in a significant reduction in the functionality of the 1982 system. Attempting to do it by hand is not recommended and those 1983 that pursue this avenue should read this file carefully, as well 1984 as the archives of freebsd-current and freebsd-hackers mailing lists 1985 for potential gotchas. The -U option is also useful to consider. 1986 See mergemaster(8) for more information. 1987 1988 [5] Usually this step is a noop. However, from time to time 1989 you may need to do this if you get unknown user in the following 1990 step. It never hurts to do it all the time. You may need to 1991 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1992 install) after the buildworld before this step if you last updated 1993 from current before 20130425 or from -stable before 20130430. 1994 1995 [6] This only deletes old files and directories. Old libraries 1996 can be deleted by "make delete-old-libs", but you have to make 1997 sure that no program is using those libraries anymore. 1998 1999 [8] In order to have a kernel that can run the 4.x binaries needed to 2000 do an installworld, you must include the COMPAT_FREEBSD4 option in 2001 your kernel. Failure to do so may leave you with a system that is 2002 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2003 required to run the 5.x binaries on more recent kernels. And so on 2004 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2005 2006 Make sure that you merge any new devices from GENERIC since the 2007 last time you updated your kernel config file. 2008 2009 [9] When checking out sources, you must include the -P flag to have 2010 cvs prune empty directories. 2011 2012 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2013 "?=" instead of the "=" assignment operator, so that buildworld can 2014 override the CPUTYPE if it needs to. 2015 2016 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2017 not on the command line, or in /etc/make.conf. buildworld will 2018 warn if it is improperly defined. 2019FORMAT: 2020 2021This file contains a list, in reverse chronological order, of major 2022breakages in tracking -current. It is not guaranteed to be a complete 2023list of such breakages, and only contains entries since October 10, 2007. 2024If you need to see UPDATING entries from before that date, you will need 2025to fetch an UPDATING file from an older FreeBSD release. 2026 2027Copyright information: 2028 2029Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2030 2031Redistribution, publication, translation and use, with or without 2032modification, in full or in part, in any form or format of this 2033document are permitted without further permission from the author. 2034 2035THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2036IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2037WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2038DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2039INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2040(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2041SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2042HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2043STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2044IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2045POSSIBILITY OF SUCH DAMAGE. 2046 2047Contact Warner Losh if you have any questions about your use of 2048this document. 2049 2050$FreeBSD: stable/10/UPDATING 260013 2013-12-28 20:05:31Z jmmv $ 2051