UPDATING revision 259758
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 1920131223: 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 2920131031: 30 The default version of mtree is nmtree which is obtained from 31 NetBSD. The output is generally the same, but may vary 32 slightly. If you found you need identical output adding 33 "-F freebsd9" to the command line should do the trick. For the 34 time being, the old mtree is available as fmtree. 35 3620131014: 37 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 38 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 39 1.1.4_8 and verify bsdyml not linked in, before running "make 40 delete-old-libs": 41 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 42 or 43 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 44 4520131010: 46 The rc.d/jail script has been updated to support jail(8) 47 configuration file. The "jail_<jname>_*" rc.conf(5) variables 48 for per-jail configuration are automatically converted to 49 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 50 This is transparently backward compatible. See below about some 51 incompatibilities and rc.conf(5) manual page for more details. 52 53 These variables are now deprecated in favor of jail(8) configuration 54 file. One can use "rc.d/jail config <jname>" command to generate 55 a jail(8) configuration file in /var/run/jail.<jname>.conf without 56 running the jail(8) utility. The default pathname of the 57 configuration file is /etc/jail.conf and can be specified by 58 using $jail_conf or $jail_<jname>_conf variables. 59 60 Please note that jail_devfs_ruleset accepts an integer at 61 this moment. Please consider to rewrite the ruleset name 62 with an integer. 63 6420130930: 65 BIND has been removed from the base system. If all you need 66 is a local resolver, simply enable and start the local_unbound 67 service instead. Otherwise, several versions of BIND are 68 available in the ports tree. The dns/bind99 port is one example. 69 70 With this change, nslookup(1) and dig(1) are no longer in the base 71 system. Users should instead use host(1) and drill(1) which are 72 in the base system. Alternatively, nslookup and dig can 73 be obtained by installing the dns/bind-tools port. 74 7520130916: 76 With the addition of unbound(8), a new unbound user is now 77 required during installworld. "mergemaster -p" can be used to 78 add the user prior to installworld, as documented in the handbook. 79 8020130911: 81 OpenSSH is now built with DNSSEC support, and will by default 82 silently trust signed SSHFP records. This can be controlled with 83 the VerifyHostKeyDNS client configuration setting. DNSSEC support 84 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 85 8620130906: 87 The GNU Compiler Collection and C++ standard library (libstdc++) 88 are no longer built by default on platforms where clang is the system 89 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 90 options in src.conf. 91 9220130905: 93 The PROCDESC kernel option is now part of the GENERIC kernel 94 configuration and is required for the rwhod(8) to work. 95 If you are using custom kernel configuration, you should include 96 'options PROCDESC'. 97 9820130905: 99 The API and ABI related to the Capsicum framework was modified 100 in backward incompatible way. The userland libraries and programs 101 have to be recompiled to work with the new kernel. This includes the 102 following libraries and programs, but the whole buildworld is 103 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 104 kdump, procstat, rwho, rwhod, uniq. 105 10620130903: 107 AES-NI intrinsic support has been added to gcc. The AES-NI module 108 has been updated to use this support. A new gcc is required to build 109 the aesni module on both i386 and amd64. 110 11120130821: 112 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 113 Thus "device padlock_rng" and "device rdrand_rng" should be 114 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 115 11620130813: 117 WITH_ICONV has been split into two feature sets. WITH_ICONV now 118 enables just the iconv* functionality and is now on by default. 119 WITH_LIBICONV_COMPAT enables the libiconv api and link time 120 compatability. Set WITHOUT_ICONV to build the old way. 121 If you have been using WITH_ICONV before, you will very likely 122 need to turn on WITH_LIBICONV_COMPAT. 123 12420130806: 125 INVARIANTS option now enables DEBUG for code with OpenSolaris and 126 Illumos origin, including ZFS. If you have INVARIANTS in your 127 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 128 explicitly. 129 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 130 locks if WITNESS option was set. Because that generated a lot of 131 witness(9) reports and all of them were believed to be false 132 positives, this is no longer done. New option OPENSOLARIS_WITNESS 133 can be used to achieve the previous behavior. 134 13520130806: 136 Timer values in IPv6 data structures now use time_uptime instead 137 of time_second. Although this is not a user-visible functional 138 change, userland utilities which directly use them---ndp(8), 139 rtadvd(8), and rtsold(8) in the base system---need to be updated 140 to r253970 or later. 141 14220130802: 143 find -delete can now delete the pathnames given as arguments, 144 instead of only files found below them or if the pathname did 145 not contain any slashes. Formerly, the following error message 146 would result: 147 148 find: -delete: <path>: relative path potentially not safe 149 150 Deleting the pathnames given as arguments can be prevented 151 without error messages using -mindepth 1 or by changing 152 directory and passing "." as argument to find. This works in the 153 old as well as the new version of find. 154 15520130726: 156 Behavior of devfs rules path matching has been changed. 157 Pattern is now always matched against fully qualified devfs 158 path and slash characters must be explicitly matched by 159 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 160 subdirectories must be reviewed. 161 16220130716: 163 The default ARM ABI has changed to the ARM EABI. The old ABI is 164 incompatible with the ARM EABI and all programs and modules will 165 need to be rebuilt to work with a new kernel. 166 167 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 168 169 NOTE: Support for the old ABI will be removed in the future and 170 users are advised to upgrade. 171 17220130709: 173 pkg_install has been disconnected from the build if you really need it 174 you should add WITH_PKGTOOLS in your src.conf(5). 175 17620130709: 177 Most of network statistics structures were changed to be able 178 keep 64-bits counters. Thus all tools, that work with networking 179 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 180 18120130629: 182 Fix targets that run multiple make's to use && rather than ; 183 so that subsequent steps depend on success of previous. 184 185 NOTE: if building 'universe' with -j* on stable/8 or stable/9 186 it would be better to start the build using bmake, to avoid 187 overloading the machine. 188 18920130618: 190 Fix a bug that allowed a tracing process (e.g. gdb) to write 191 to a memory-mapped file in the traced process's address space 192 even if neither the traced process nor the tracing process had 193 write access to that file. 194 19520130615: 196 CVS has been removed from the base system. An exact copy 197 of the code is available from the devel/cvs port. 198 19920130613: 200 Some people report the following error after the switch to bmake: 201 202 make: illegal option -- J 203 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 204 ... 205 *** [buildworld] Error code 2 206 207 this likely due to an old instance of make in 208 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 209 which src/Makefile will use that blindly, if it exists, so if 210 you see the above error: 211 212 rm -rf `make -V MAKEPATH` 213 214 should resolve it. 215 21620130516: 217 Use bmake by default. 218 Whereas before one could choose to build with bmake via 219 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 220 make. The goal is to remove these knobs for 10-RELEASE. 221 222 It is worth noting that bmake (like gmake) treats the command 223 line as the unit of failure, rather than statements within the 224 command line. Thus '(cd some/where && dosomething)' is safer 225 than 'cd some/where; dosomething'. The '()' allows consistent 226 behavior in parallel build. 227 22820130429: 229 Fix a bug that allows NFS clients to issue READDIR on files. 230 23120130426: 232 The WITHOUT_IDEA option has been removed because 233 the IDEA patent expired. 234 23520130426: 236 The sysctl which controls TRIM support under ZFS has been renamed 237 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 238 enabled by default. 239 24020130425: 241 The mergemaster command now uses the default MAKEOBJDIRPREFIX 242 rather than creating it's own in the temporary directory in 243 order allow access to bootstrapped versions of tools such as 244 install and mtree. When upgrading from version of FreeBSD where 245 the install command does not support -l, you will need to 246 install a new mergemaster command if mergemaster -p is required. 247 This can be accomplished with the command (cd src/usr.sbin/mergemaster 248 && make install). 249 25020130404: 251 Legacy ATA stack, disabled and replaced by new CAM-based one since 252 FreeBSD 9.0, completely removed from the sources. Kernel modules 253 atadisk and atapi*, user-level tools atacontrol and burncd are 254 removed. Kernel option `options ATA_CAM` is now permanently enabled 255 and removed. 256 25720130319: 258 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 259 and socketpair(2). Software, in particular Kerberos, may 260 automatically detect and use these during building. The resulting 261 binaries will not work on older kernels. 262 26320130308: 264 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 265 information, see the respective 20130304 entry). 266 26720130304: 268 Recent commits to callout(9) changed the size of struct callout, 269 so the KBI is probably heavily disturbed. Also, some functions 270 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 271 by macros. Every kernel module using it won't load, so rebuild 272 is requested. 273 274 The ctl device has been re-enabled in GENERIC for i386 and amd64, 275 but does not initialize by default (because of the new CTL_DISABLE 276 option) to save memory. To re-enable it, remove the CTL_DISABLE 277 option from the kernel config file or set kern.cam.ctl.disable=0 278 in /boot/loader.conf. 279 28020130301: 281 The ctl device has been disabled in GENERIC for i386 and amd64. 282 This was done due to the extra memory being allocated at system 283 initialisation time by the ctl driver which was only used if 284 a CAM target device was created. This makes a FreeBSD system 285 unusable on 128MB or less of RAM. 286 28720130208: 288 A new compression method (lz4) has been merged to -HEAD. Please 289 refer to zpool-features(7) for more information. 290 291 Please refer to the "ZFS notes" section of this file for information 292 on upgrading boot ZFS pools. 293 29420130129: 295 A BSD-licensed patch(1) variant has been added and is installed 296 as bsdpatch, being the GNU version the default patch. 297 To inverse the logic and use the BSD-licensed one as default, 298 while having the GNU version installed as gnupatch, rebuild 299 and install world with the WITH_BSD_PATCH knob set. 300 30120130121: 302 Due to the use of the new -l option to install(1) during build 303 and install, you must take care not to directly set the INSTALL 304 make variable in your /etc/make.conf, /etc/src.conf, or on the 305 command line. If you wish to use the -C flag for all installs 306 you may be able to add INSTALL+=-C to /etc/make.conf or 307 /etc/src.conf. 308 30920130118: 310 The install(1) option -M has changed meaning and now takes an 311 argument that is a file or path to append logs to. In the 312 unlikely event that -M was the last option on the command line 313 and the command line contained at least two files and a target 314 directory the first file will have logs appended to it. The -M 315 option served little practical purpose in the last decade so its 316 use is expected to be extremely rare. 317 31820121223: 319 After switching to Clang as the default compiler some users of ZFS 320 on i386 systems started to experience stack overflow kernel panics. 321 Please consider using 'options KSTACK_PAGES=4' in such configurations. 322 32320121222: 324 GEOM_LABEL now mangles label names read from file system metadata. 325 Mangling affect labels containing spaces, non-printable characters, 326 '%' or '"'. Device names in /etc/fstab and other places may need to 327 be updated. 328 32920121217: 330 By default, only the 10 most recent kernel dumps will be saved. To 331 restore the previous behaviour (no limit on the number of kernel dumps 332 stored in the dump directory) add the following line to /etc/rc.conf: 333 334 savecore_flags="" 335 33620121201: 337 With the addition of auditdistd(8), a new auditdistd user is now 338 required during installworld. "mergemaster -p" can be used to 339 add the user prior to installworld, as documented in the handbook. 340 34120121117: 342 The sin6_scope_id member variable in struct sockaddr_in6 is now 343 filled by the kernel before passing the structure to the userland via 344 sysctl or routing socket. This means the KAME-specific embedded scope 345 id in sin6_addr.s6_addr[2] is always cleared in userland application. 346 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 347 __FreeBSD_version is bumped to 1000025. 348 34920121105: 350 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 351 This means that the world and kernel will be compiled with clang 352 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 353 and /usr/bin/cpp. To disable this behavior and revert to building 354 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 355 of current may need to bootstrap WITHOUT_CLANG first if the clang 356 build fails (its compatibility window doesn't extend to the 9 stable 357 branch point). 358 35920121102: 360 The IPFIREWALL_FORWARD kernel option has been removed. Its 361 functionality now turned on by default. 362 36320121023: 364 The ZERO_COPY_SOCKET kernel option has been removed and 365 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 366 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 367 mechanism which is not safe and may result in kernel crashes. 368 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 369 driver supports disposeable external page sized mbuf storage. 370 Proper replacements for both zero-copy mechanisms are under 371 consideration and will eventually lead to complete removal 372 of the two kernel options. 373 37420121023: 375 The IPv4 network stack has been converted to network byte 376 order. The following modules need to be recompiled together 377 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 378 pf(4), ipfw(4), ng_ipfw(4), stf(4). 379 38020121022: 381 Support for non-MPSAFE filesystems was removed from VFS. The 382 VFS_VERSION was bumped, all filesystem modules shall be 383 recompiled. 384 38520121018: 386 All the non-MPSAFE filesystems have been disconnected from 387 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 388 portalfs, smbfs, xfs. 389 39020121016: 391 The interface cloning API and ABI has changed. The following 392 modules need to be recompiled together with kernel: 393 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 394 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 395 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 396 39720121015: 398 The sdhci driver was split in two parts: sdhci (generic SD Host 399 Controller logic) and sdhci_pci (actual hardware driver). 400 No kernel config modifications are required, but if you 401 load sdhc as a module you must switch to sdhci_pci instead. 402 40320121014: 404 Import the FUSE kernel and userland support into base system. 405 40620121013: 407 The GNU sort(1) program has been removed since the BSD-licensed 408 sort(1) has been the default for quite some time and no serious 409 problems have been reported. The corresponding WITH_GNU_SORT 410 knob has also gone. 411 41220121006: 413 The pfil(9) API/ABI for AF_INET family has been changed. Packet 414 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 415 with new kernel. 416 41720121001: 418 The net80211(4) ABI has been changed to allow for improved driver 419 PS-POLL and power-save support. All wireless drivers need to be 420 recompiled to work with the new kernel. 421 42220120913: 423 The random(4) support for the VIA hardware random number 424 generator (`PADLOCK') is no longer enabled unconditionally. 425 Add the padlock_rng device in the custom kernel config if 426 needed. The GENERIC kernels on i386 and amd64 do include the 427 device, so the change only affects the custom kernel 428 configurations. 429 43020120908: 431 The pf(4) packet filter ABI has been changed. pfctl(8) and 432 snmp_pf module need to be recompiled to work with new kernel. 433 43420120828: 435 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 436 to -HEAD. Pools that have empty_bpobj in active state can not be 437 imported read-write with ZFS implementations that do not support 438 this feature. For more information read the zpool-features(5) 439 manual page. 440 44120120727: 442 The sparc64 ZFS loader has been changed to no longer try to auto- 443 detect ZFS providers based on diskN aliases but now requires these 444 to be explicitly listed in the OFW boot-device environment variable. 445 44620120712: 447 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 448 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 449 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 450 45120120712: 452 The following sysctls and tunables have been renamed for consistency 453 with other variables: 454 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 455 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 456 45720120628: 458 The sort utility has been replaced with BSD sort. For now, GNU sort 459 is also available as "gnusort" or the default can be set back to 460 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 461 installed as "bsdsort". 462 46320120611: 464 A new version of ZFS (pool version 5000) has been merged to -HEAD. 465 Starting with this version the old system of ZFS pool versioning 466 is superseded by "feature flags". This concept enables forward 467 compatibility against certain future changes in functionality of ZFS 468 pools. The first read-only compatible "feature flag" for ZFS pools 469 is named "com.delphix:async_destroy". For more information 470 read the new zpool-features(5) manual page. 471 Please refer to the "ZFS notes" section of this file for information 472 on upgrading boot ZFS pools. 473 47420120417: 475 The malloc(3) implementation embedded in libc now uses sources imported 476 as contrib/jemalloc. The most disruptive API change is to 477 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 478 delete it prior to installworld, and optionally re-create it using the 479 new format after rebooting. See malloc.conf(5) for details 480 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 481 NAMESPACE section). 482 48320120328: 484 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 485 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 486 now spelled mips. This is to aid compatibility with third-party 487 software that expects this naming scheme in uname(3). Little-endian 488 settings are unchanged. If you are updating a big-endian mips64 machine 489 from before this change, you may need to set MACHINE_ARCH=mips64 in 490 your environment before the new build system will recognize your machine. 491 49220120306: 493 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 494 platforms. 495 49620120229: 497 Now unix domain sockets behave "as expected" on nullfs(5). Previously 498 nullfs(5) did not pass through all behaviours to the underlying layer, 499 as a result if we bound to a socket on the lower layer we could connect 500 only to the lower path; if we bound to the upper layer we could connect 501 only to the upper path. The new behavior is one can connect to both the 502 lower and the upper paths regardless what layer path one binds to. 503 50420120211: 505 The getifaddrs upgrade path broken with 20111215 has been restored. 506 If you have upgraded in between 20111215 and 20120209 you need to 507 recompile libc again with your kernel. You still need to recompile 508 world to be able to configure CARP but this restriction already 509 comes from 20111215. 510 51120120114: 512 The set_rcvar() function has been removed from /etc/rc.subr. All 513 base and ports rc.d scripts have been updated, so if you have a 514 port installed with a script in /usr/local/etc/rc.d you can either 515 hand-edit the rcvar= line, or reinstall the port. 516 517 An easy way to handle the mass-update of /etc/rc.d: 518 rm /etc/rc.d/* && mergemaster -i 519 52020120109: 521 panic(9) now stops other CPUs in the SMP systems, disables interrupts 522 on the current CPU and prevents other threads from running. 523 This behavior can be reverted using the kern.stop_scheduler_on_panic 524 tunable/sysctl. 525 The new behavior can be incompatible with kern.sync_on_panic. 526 52720111215: 528 The carp(4) facility has been changed significantly. Configuration 529 of the CARP protocol via ifconfig(8) has changed, as well as format 530 of CARP events submitted to devd(8) has changed. See manual pages 531 for more information. The arpbalance feature of carp(4) is currently 532 not supported anymore. 533 534 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 535 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 536 need to be recompiled. 537 53820111122: 539 The acpi_wmi(4) status device /dev/wmistat has been renamed to 540 /dev/wmistat0. 541 54220111108: 543 The option VFS_ALLOW_NONMPSAFE option has been added in order to 544 explicitely support non-MPSAFE filesystems. 545 It is on by default for all supported platform at this present 546 time. 547 54820111101: 549 The broken amd(4) driver has been replaced with esp(4) in the amd64, 550 i386 and pc98 GENERIC kernel configuration files. 551 55220110930: 553 sysinstall has been removed 554 55520110923: 556 The stable/9 branch created in subversion. This corresponds to the 557 RELENG_9 branch in CVS. 558 55920110913: 560 This commit modifies vfs_register() so that it uses a hash 561 calculation to set vfc_typenum, which is enabled by default. 562 The first time a system is booted after this change, the 563 vfc_typenum values will change for all file systems. The 564 main effect of this is a change to the NFS server file handles 565 for file systems that use vfc_typenum in their fsid, such as ZFS. 566 It will, however, prevent vfc_typenum from changing when file 567 systems are loaded in a different order for subsequent reboots. 568 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 569 until you are ready to remount all NFS clients after a reboot. 570 57120110828: 572 Bump the shared library version numbers for libraries that 573 do not use symbol versioning, have changed the ABI compared 574 to stable/8 and which shared library version was not bumped. 575 Done as part of 9.0-RELEASE cycle. 576 57720110815: 578 During the merge of Capsicum features, the fget(9) KPI was modified. 579 This may require the rebuilding of out-of-tree device drivers -- 580 issues have been reported specifically with the nVidia device driver. 581 __FreeBSD_version is bumped to 900041. 582 583 Also, there is a period between 20110811 and 20110814 where the 584 special devices /dev/{stdin,stdout,stderr} did not work correctly. 585 Building world from a kernel during that window may not work. 586 58720110628: 588 The packet filter (pf) code has been updated to OpenBSD 4.5. 589 You need to update userland tools to be in sync with kernel. 590 This update breaks backward compatibility with earlier pfsync(4) 591 versions. Care must be taken when updating redundant firewall setups. 592 59320110608: 594 The following sysctls and tunables are retired on x86 platforms: 595 machdep.hlt_cpus 596 machdep.hlt_logical_cpus 597 The following sysctl is retired: 598 machdep.hyperthreading_allowed 599 The sysctls were supposed to provide a way to dynamically offline and 600 online selected CPUs on x86 platforms, but the implementation has not 601 been reliable especially with SCHED_ULE scheduler. 602 machdep.hyperthreading_allowed tunable is still available to ignore 603 hyperthreading CPUs at OS level. 604 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 605 where X is an APIC ID of a CPU. Be advised, though, that disabling 606 CPUs in non-uniform fashion will result in non-uniform topology and 607 may lead to sub-optimal system performance with SCHED_ULE, which is 608 a default scheduler. 609 61020110607: 611 cpumask_t type is retired and cpuset_t is used in order to describe 612 a mask of CPUs. 613 61420110531: 615 Changes to ifconfig(8) for dynamic address family detection mandate 616 that you are running a kernel of 20110525 or later. Make sure to 617 follow the update procedure to boot a new kernel before installing 618 world. 619 62020110513: 621 Support for sun4v architecture is officially dropped 622 62320110503: 624 Several KPI breaking changes have been committed to the mii(4) layer, 625 the PHY drivers and consequently some Ethernet drivers using mii(4). 626 This means that miibus.ko and the modules of the affected Ethernet 627 drivers need to be recompiled. 628 629 Note to kernel developers: Given that the OUI bit reversion problem 630 was fixed as part of these changes all mii(4) commits related to OUIs, 631 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 632 handling, no longer can be merged verbatim to stable/8 and previous 633 branches. 634 63520110430: 636 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 637 into their kernel configurations along with 'device pci'. 638 63920110427: 640 The default NFS client is now the new NFS client, so fstype "newnfs" 641 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 642 Although mounts via fstype "nfs" will usually work without userland 643 changes, it is recommended that the mount(8) and mount_nfs(8) 644 commands be rebuilt from sources and that a link to mount_nfs called 645 mount_oldnfs be created. The new client is compiled into the 646 kernel with "options NFSCL" and this is needed for diskless root 647 file systems. The GENERIC kernel configs have been changed to use 648 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 649 To use the regular/old client, you can "mount -t oldnfs ...". For 650 a diskless root file system, you must also include a line like: 651 652 vfs.root.mountfrom="oldnfs:" 653 654 in the boot/loader.conf on the root fs on the NFS server to make 655 a diskless root fs use the old client. 656 65720110424: 658 The GENERIC kernels for all architectures now default to the new 659 CAM-based ATA stack. It means that all legacy ATA drivers were 660 removed and replaced by respective CAM drivers. If you are using 661 ATA device names in /etc/fstab or other places, make sure to update 662 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 663 where 'Y's are the sequential numbers starting from zero for each type 664 in order of detection, unless configured otherwise with tunables, 665 see cam(4)). There will be symbolic links created in /dev/ to map 666 old adX devices to the respective adaY. They should provide basic 667 compatibility for file systems mounting in most cases, but they do 668 not support old user-level APIs and do not have respective providers 669 in GEOM. Consider using updated management tools with new device names. 670 671 It is possible to load devices ahci, ata, siis and mvs as modules, 672 but option ATA_CAM should remain in kernel configuration to make ata 673 module work as CAM driver supporting legacy ATA controllers. Device ata 674 still can be used in modular fashion (atacore + ...). Modules atadisk 675 and atapi* are not used and won't affect operation in ATA_CAM mode. 676 Note that to use CAM-based ATA kernel should include CAM devices 677 scbus, pass, da (or explicitly ada), cd and optionally others. All of 678 them are parts of the cam module. 679 680 ataraid(4) functionality is now supported by the RAID GEOM class. 681 To use it you can load geom_raid kernel module and use graid(8) tool 682 for management. Instead of /dev/arX device names, use /dev/raid/rX. 683 684 No kernel config options or code have been removed, so if a problem 685 arises, please report it and optionally revert to the old ATA stack. 686 In order to do it you can remove from the kernel config: 687 options ATA_CAM 688 device ahci 689 device mvs 690 device siis 691 , and instead add back: 692 device atadisk # ATA disk drives 693 device ataraid # ATA RAID drives 694 device atapicd # ATAPI CDROM drives 695 device atapifd # ATAPI floppy drives 696 device atapist # ATAPI tape drives 697 69820110423: 699 The default NFS server has been changed to the new server, which 700 was referred to as the experimental server. If you need to switch 701 back to the old NFS server, you must now put the "-o" option on 702 both the mountd and nfsd commands. This can be done using the 703 mountd_flags and nfs_server_flags rc.conf variables until an 704 update to the rc scripts is committed, which is coming soon. 705 70620110418: 707 The GNU Objective-C runtime library (libobjc), and other Objective-C 708 related components have been removed from the base system. If you 709 require an Objective-C library, please use one of the available ports. 710 71120110331: 712 ath(4) has been split into bus- and device- modules. if_ath contains 713 the HAL, the TX rate control and the network device code. if_ath_pci 714 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 715 contains the AHB glue. Users need to load both if_ath_pci and if_ath 716 in order to use ath on everything else. 717 718 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 719 need to load if_ath and if_ath_pci for ath(4) operation. 720 72120110314: 722 As part of the replacement of sysinstall, the process of building 723 release media has changed significantly. For details, please re-read 724 release(7), which has been updated to reflect the new build process. 725 72620110218: 727 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 728 is the last available version under GPLv2. It brings a number of new 729 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 730 4.1 and SSE 4.2), better support for powerpc64, a number of new 731 directives, and lots of other small improvements. See the ChangeLog 732 file in contrib/binutils for the full details. 733 73420110218: 735 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 736 compliant, and will now use half of hash for authentication. 737 This will break interoperability with all stacks (including all 738 actual FreeBSD versions) who implement 739 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 740 authentication). 741 The only workaround with such peers is to use another HMAC 742 algorithm for IPsec ("phase 2") authentication. 743 74420110207: 745 Remove the uio_yield prototype and symbol. This function has 746 been misnamed since it was introduced and should not be 747 globally exposed with this name. The equivalent functionality 748 is now available using kern_yield(curthread->td_user_pri). 749 The function remains undocumented. 750 75120110112: 752 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 753 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 754 for scalar sysctls is defined but disabled. Code that needs 755 UQUAD to pass the type checking that must compile on older 756 systems where the define is not present can check against 757 __FreeBSD_version >= 900030. 758 759 The system dialog(1) has been replaced with a new version previously 760 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 761 with the previous version, but the libdialog associated with it has 762 a largely incompatible API. As such, the original version of libdialog 763 will be kept temporarily as libodialog, until its base system consumers 764 are replaced or updated. Bump __FreeBSD_version to 900030. 765 76620110103: 767 If you are trying to run make universe on a -stable system, and you get 768 the following warning: 769 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 770 unknown. config(8) likely too old." 771 or something similar to it, then you must upgrade your -stable system 772 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 773 stable/8) or build the config from the latest stable/8 branch and 774 install it on your system. 775 776 Prior to this date, building a current universe on 8-stable system from 777 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 778 error in the first kernel build phase. A new config on those old 779 systems will fix that problem for older versions of -current. 780 78120101228: 782 The TCP stack has been modified to allow Khelp modules to interact with 783 it via helper hook points and store per-connection data in the TCP 784 control block. Bump __FreeBSD_version to 900029. User space tools that 785 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 786 be recompiled. 787 78820101114: 789 Generic IEEE 802.3 annex 31B full duplex flow control support has been 790 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 791 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 792 to take advantage of it instead of using custom implementations. This 793 means that these drivers now no longer unconditionally advertise 794 support for flow control but only do so if flow control is a selected 795 media option. This was implemented in the generic support that way in 796 order to allow flow control to be switched on and off via ifconfig(8) 797 with the PHY specific default to typically off in order to protect 798 from unwanted effects. Consequently, if you used flow control with 799 one of the above mentioned drivers you now need to explicitly enable 800 it, for example via: 801 ifconfig bge0 media auto mediaopt flowcontrol 802 803 Along with the above mentioned changes generic support for setting 804 1000baseT master mode also has been added and brgphy(4), ciphy(4), 805 e1000phy(4) as well as ip1000phy(4) have been converted to take 806 advantage of it. This means that these drivers now no longer take the 807 link0 parameter for selecting master mode but the master media option 808 has to be used instead, for example like in the following: 809 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 810 811 Selection of master mode now is also available with all other PHY 812 drivers supporting 1000baseT. 813 81420101111: 815 The TCP stack has received a significant update to add support for 816 modularised congestion control and generally improve the clarity of 817 congestion control decisions. Bump __FreeBSD_version to 900025. User 818 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 819 sockstat) need to be recompiled. 820 82120101002: 822 The man(1) utility has been replaced by a new version that no longer 823 uses /etc/manpath.config. Please consult man.conf(5) for how to 824 migrate local entries to the new format. 825 82620100928: 827 The copyright strings printed by login(1) and sshd(8) at the time of a 828 new connection have been removed to follow other operating systems and 829 upstream sshd. 830 83120100915: 832 A workaround for a fixed ld bug has been removed in kernel code, 833 so make sure that your system ld is built from sources after 834 revision 210245 from 2010-07-19 (r211583 if building head kernel 835 on stable/8, r211584 for stable/7; both from 2010-08-21). 836 A symptom of incorrect ld version is different addresses for 837 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 838 83920100913: 840 The $ipv6_prefer variable in rc.conf(5) has been split into 841 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 842 843 The $ip6addrctl_policy is a variable to choose a pre-defined 844 address selection policy set by ip6addrctl(8). A value 845 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 846 default is "AUTO". 847 848 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 849 flag (see an entry of 20090926) is set on an interface with no 850 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 851 security reason. If you want IPv6 link-local address on all 852 interfaces by default, set this to "YES". 853 854 The old ipv6_prefer="YES" is equivalent to 855 ipv6_activate_all_interfaces="YES" and 856 ip6addrctl_policy="ipv6_prefer". 857 85820100913: 859 DTrace has grown support for userland tracing. Due to this, DTrace is 860 now i386 and amd64 only. 861 dtruss(1) is now installed by default on those systems and a new 862 kernel module is needed for userland tracing: fasttrap. 863 No changes to your kernel config file are necessary to enable 864 userland tracing, but you might consider adding 'STRIP=' and 865 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 866 to have informative userland stack traces in DTrace (ustack). 867 86820100725: 869 The acpi_aiboost(4) driver has been removed in favor of the new 870 aibs(4) driver. You should update your kernel configuration file. 871 87220100722: 873 BSD grep has been imported to the base system and it is built by 874 default. It is completely BSD licensed, highly GNU-compatible, uses 875 less memory than its GNU counterpart and has a small codebase. 876 However, it is slower than its GNU counterpart, which is mostly 877 noticeable for larger searches, for smaller ones it is measurable 878 but not significant. The reason is complex, the most important factor 879 is that we lack a modern and efficient regex library and GNU 880 overcomes this by optimizing the searches internally. Future work 881 on improving the regex performance is planned, for the meantime, 882 users that need better performance, can build GNU grep instead by 883 setting the WITH_GNU_GREP knob. 884 88520100713: 886 Due to the import of powerpc64 support, all existing powerpc kernel 887 configuration files must be updated with a machine directive like this: 888 machine powerpc powerpc 889 890 In addition, an updated config(8) is required to build powerpc kernels 891 after this change. 892 89320100713: 894 A new version of ZFS (version 15) has been merged to -HEAD. 895 This version uses a python library for the following subcommands: 896 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 897 For full functionality of these commands the following port must 898 be installed: sysutils/py-zfs 899 90020100429: 901 'vm_page's are now hashed by physical address to an array of mutexes. 902 Currently this is only used to serialize access to hold_count. Over 903 time the page queue mutex will be peeled away. This changes the size 904 of pmap on every architecture. And requires all callers of vm_page_hold 905 and vm_page_unhold to be updated. 906 90720100402: 908 WITH_CTF can now be specified in src.conf (not recommended, there 909 are some problems with static executables), make.conf (would also 910 affect ports which do not use GNU make and do not override the 911 compile targets) or in the kernel config (via "makeoptions 912 WITH_CTF=yes"). 913 When WITH_CTF was specified there before this was silently ignored, 914 so make sure that WITH_CTF is not used in places which could lead 915 to unwanted behavior. 916 91720100311: 918 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 919 to allow 32-bit compatibility on non-x86 platforms. All kernel 920 configurations on amd64 and ia64 platforms using these options must 921 be modified accordingly. 922 92320100113: 924 The utmp user accounting database has been replaced with utmpx, 925 the user accounting interface standardized by POSIX. 926 Unfortunately the semantics of utmp and utmpx don't match, 927 making it practically impossible to support both interfaces. 928 The user accounting database is used by tools like finger(1), 929 last(1), talk(1), w(1) and ac(8). 930 931 All applications in the base system use utmpx. This means only 932 local binaries (e.g. from the ports tree) may still use these 933 utmp database files. These applications must be rebuilt to make 934 use of utmpx. 935 936 After the system has been upgraded, it is safe to remove the old 937 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 938 assuming their contents is of no importance anymore. Old wtmp 939 databases can only be used by last(1) and ac(8) after they have 940 been converted to the new format using wtmpcvt(1). 941 94220100108: 943 Introduce the kernel thread "deadlock resolver" (which can be enabled 944 via the DEADLKRES option, see NOTES for more details) and the 945 sleepq_type() function for sleepqueues. 946 94720091202: 948 The rc.firewall and rc.firewall6 were unified, and 949 rc.firewall6 and rc.d/ip6fw were removed. 950 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 951 variables are obsoleted. Instead, the following new rc 952 variables are added to rc.d/ipfw: 953 954 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 955 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 956 firewall_simple_onet_ipv6, firewall_trusted_ipv6 957 958 The meanings correspond to the relevant IPv4 variables. 959 96020091125: 961 8.0-RELEASE. 962 96320091113: 964 The default terminal emulation for syscons(4) has been changed 965 from cons25 to xterm on all platforms except pc98. This means 966 that the /etc/ttys file needs to be updated to ensure correct 967 operation of applications on the console. 968 969 The terminal emulation style can be toggled per window by using 970 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 971 options can be used to change the compile-time default back to 972 cons25. 973 974 To prevent graphical artifacts, make sure the TERM environment 975 variable is set to match the terminal emulation that is being 976 performed by syscons(4). 977 97820091109: 979 The layout of the structure ieee80211req_scan_result has changed. 980 Applications that require wireless scan results (e.g. ifconfig(8)) 981 from net80211 need to be recompiled. 982 983 Applications such as wpa_supplicant(8) may require a full world 984 build without using NO_CLEAN in order to get synchronized with the 985 new structure. 986 98720091025: 988 The iwn(4) driver has been updated to support the 5000 and 5150 series. 989 There's one kernel module for each firmware. Adding "device iwnfw" 990 to the kernel configuration file means including all three firmware 991 images inside the kernel. If you want to include just the one for 992 your wireless card, use the devices iwn4965fw, iwn5000fw or 993 iwn5150fw. 994 99520090926: 996 The rc.d/network_ipv6, IPv6 configuration script has been integrated 997 into rc.d/netif. The changes are the following: 998 999 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1000 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1001 Note that both variables need the "inet6" keyword at the head. 1002 1003 Do not set $ipv6_network_interfaces manually if you do not 1004 understand what you are doing. It is not needed in most cases. 1005 1006 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1007 they are obsolete. 1008 1009 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1010 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1011 1012 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1013 all configured interfaces have "inet6 accept_rtadv" in the 1014 $ifconfig_IF_ipv6. These are for backward compatibility. 1015 1016 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1017 functionality of interfaces with no corresponding 1018 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1019 and the default address selection policy of ip6addrctl(8) 1020 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1021 Note that if you want to configure IPv6 functionality on the 1022 disabled interfaces after boot, first you need to clear the flag by 1023 using ifconfig(8) like: 1024 1025 ifconfig em0 inet6 -ifdisabled 1026 1027 If YES, the default address selection policy is set as 1028 IPv6-preferred. 1029 1030 The default value of $ipv6_prefer is NO. 1031 1032 4. If your system need to receive Router Advertisement messages, 1033 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1034 scripts automatically invoke rtsol(8) when the interface becomes 1035 UP. The Router Advertisement messages are used for SLAAC 1036 (State-Less Address AutoConfiguration). 1037 103820090922: 1039 802.11s D3.03 support was committed. This is incompatible with the 1040 previous code, which was based on D3.0. 1041 104220090912: 1043 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1044 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1045 control whether accepting Router Advertisement messages or not. 1046 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1047 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1048 The ifconfig(8) utility now supports these flags. 1049 105020090910: 1051 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1052 mount(8) and -a option for df(1) to see them. 1053 105420090825: 1055 The old tunable hw.bus.devctl_disable has been superseded by 1056 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1057 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1058 is 1000. 1059 106020090813: 1061 Remove the option STOP_NMI. The default action is now to use NMI only 1062 for KDB via the newly introduced function stop_cpus_hard() and 1063 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1064 106520090803: 1066 The stable/8 branch created in subversion. This corresponds to the 1067 RELENG_8 branch in CVS. 1068 106920090719: 1070 Bump the shared library version numbers for all libraries that do not 1071 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1072 __FreeBSD_version to 800105. 1073 107420090714: 1075 Due to changes in the implementation of virtual network stack support, 1076 all network-related kernel modules must be recompiled. As this change 1077 breaks the ABI, bump __FreeBSD_version to 800104. 1078 107920090713: 1080 The TOE interface to the TCP syncache has been modified to remove 1081 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1082 The cxgb driver is the only TOE consumer affected by this change, and 1083 needs to be recompiled along with the kernel. As this change breaks 1084 the ABI, bump __FreeBSD_version to 800103. 1085 108620090712: 1087 Padding has been added to struct tcpcb, sackhint and tcpstat in 1088 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1089 maintaining the ABI. However, this change breaks the ABI, so bump 1090 __FreeBSD_version to 800102. User space tools that rely on the size of 1091 any of these structs (e.g. sockstat) need to be recompiled. 1092 109320090630: 1094 The NFS_LEGACYRPC option has been removed along with the old kernel 1095 RPC implementation that this option selected. Kernel configurations 1096 may need to be adjusted. 1097 109820090629: 1099 The network interface device nodes at /dev/net/<interface> have been 1100 removed. All ioctl operations can be performed the normal way using 1101 routing sockets. The kqueue functionality can generally be replaced 1102 with routing sockets. 1103 110420090628: 1105 The documentation from the FreeBSD Documentation Project (Handbook, 1106 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1107 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1108 110920090624: 1110 The ABI of various structures related to the SYSV IPC API have been 1111 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1112 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1113 800100. 1114 111520090622: 1116 Layout of struct vnet has changed as routing related variables were 1117 moved to their own Vimage module. Modules need to be recompiled. Bump 1118 __FreeBSD_version to 800099. 1119 112020090619: 1121 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1122 respectively. As long as no more than 16 groups per process are used, 1123 no changes should be visible. When more than 16 groups are used, old 1124 binaries may fail if they call getgroups() or getgrouplist() with 1125 statically sized storage. Recompiling will work around this, but 1126 applications should be modified to use dynamically allocated storage 1127 for group arrays as POSIX.1-2008 does not cap an implementation's 1128 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1129 1130 NFS and portalfs mounts may also be affected as the list of groups is 1131 truncated to 16. Users of NFS who use more than 16 groups, should 1132 take care that negative group permissions are not used on the exported 1133 file systems as they will not be reliable unless a GSSAPI based 1134 authentication method is used. 1135 113620090616: 1137 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1138 option compiles in the support for adaptive spinning for lockmgrs 1139 which want to enable it. The lockinit() function now accepts the flag 1140 LK_ADAPTIVE in order to make the lock object subject to adaptive 1141 spinning when both held in write and read mode. 1142 114320090613: 1144 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1145 changed. User applications that use this ioctl need to be rebuilt. 1146 114720090611: 1148 The layout of struct thread has changed. Kernel and modules need to 1149 be rebuilt. 1150 115120090608: 1152 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1153 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1154 115520090602: 1156 window(1) has been removed from the base system. It can now be 1157 installed from ports. The port is called misc/window. 1158 115920090601: 1160 The way we are storing and accessing `routing table' entries has 1161 changed. Programs reading the FIB, like netstat, need to be 1162 re-compiled. 1163 116420090601: 1165 A new netisr implementation has been added for FreeBSD 8. Network 1166 file system modules, such as igmp, ipdivert, and others, should be 1167 rebuilt. 1168 Bump __FreeBSD_version to 800096. 1169 117020090530: 1171 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1172 more valid. 1173 117420090530: 1175 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1176 Bump __FreeBSD_version to 800094. 1177 117820090529: 1179 Add mnt_xflag field to 'struct mount'. File system modules need to be 1180 rebuilt. 1181 Bump __FreeBSD_version to 800093. 1182 118320090528: 1184 The compiling option ADAPTIVE_SX has been retired while it has been 1185 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1186 The KPI for sx_init_flags() changes as accepting flags: 1187 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1188 been introduced in order to handle the reversed logic. 1189 Bump __FreeBSD_version to 800092. 1190 119120090527: 1192 Add support for hierarchical jails. Remove global securelevel. 1193 Bump __FreeBSD_version to 800091. 1194 119520090523: 1196 The layout of struct vnet_net has changed, therefore modules 1197 need to be rebuilt. 1198 Bump __FreeBSD_version to 800090. 1199 120020090523: 1201 The newly imported zic(8) produces a new format in the output. Please 1202 run tzsetup(8) to install the newly created data to /etc/localtime. 1203 120420090520: 1205 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1206 hw.usb.* and is now consistent again with previous releases. 1207 120820090520: 1209 802.11 monitor mode support was revised and driver api's were changed. 1210 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1211 of DLT_IEEE802_11. No user-visible data structures were changed but 1212 applications that use DLT_IEEE802_11 may require changes. 1213 Bump __FreeBSD_version to 800088. 1214 121520090430: 1216 The layout of the following structs has changed: sysctl_oid, 1217 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1218 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1219 panics may be experienced. World rebuild is required for 1220 correctly checking networking state from userland. 1221 Bump __FreeBSD_version to 800085. 1222 122320090429: 1224 MLDv2 and Source-Specific Multicast (SSM) have been merged 1225 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1226 The implementation of SSM within FreeBSD's IPv6 stack closely 1227 follows the IPv4 implementation. 1228 1229 For kernel developers: 1230 1231 * The most important changes are that the ip6_output() and 1232 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1233 and this lock has been downgraded to a non-recursive mutex. 1234 1235 * As with the changes to the IPv4 stack to support SSM, filtering 1236 of inbound multicast traffic must now be performed by transport 1237 protocols within the IPv6 stack. This does not apply to TCP and 1238 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1239 1240 * The KPIs used by IPv6 multicast are similar to those used by 1241 the IPv4 stack, with the following differences: 1242 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1243 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1244 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1245 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1246 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1247 for MLDv1 have an additional 'timer' argument which is used to 1248 jitter the initial membership report for the solicited-node 1249 multicast membership on-link. 1250 * This is not strictly needed for MLDv2, which already jitters 1251 its report transmissions. However, the 'timer' argument is 1252 preserved in case MLDv1 is active on the interface. 1253 1254 * The KAME linked-list based IPv6 membership implementation has 1255 been refactored to use a vector similar to that used by the IPv4 1256 stack. 1257 Code which maintains a list of its own multicast memberships 1258 internally, e.g. carp, has been updated to reflect the new 1259 semantics. 1260 1261 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1262 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1263 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1264 implementation constraint which needs to be addressed in HEAD. 1265 1266 For application developers: 1267 1268 * The changes are broadly similar to those made for the IPv4 1269 stack. 1270 1271 * The use of IPv4 and IPv6 multicast socket options on the same 1272 socket, using mapped addresses, HAS NOT been tested or supported. 1273 1274 * There are a number of issues with the implementation of various 1275 IPv6 multicast APIs which need to be resolved in the API surface 1276 before the implementation is fully compatible with KAME userland 1277 use, and these are mostly to do with interface index treatment. 1278 1279 * The literature available discusses the use of either the delta / ASM 1280 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1281 using setsourcefilter(3)/getsourcefilter(3). For more information 1282 please refer to RFC 3768, 'Socket Interface Extensions for 1283 Multicast Source Filters'. 1284 1285 * Applications which use the published RFC 3678 APIs should be fine. 1286 1287 For systems administrators: 1288 1289 * The mtest(8) utility has been refactored to support IPv6, in 1290 addition to IPv4. Interface addresses are no longer accepted 1291 as arguments, their names must be used instead. The utility 1292 will map the interface name to its first IPv4 address as 1293 returned by getifaddrs(3). 1294 1295 * The ifmcstat(8) utility has also been updated to print the MLDv2 1296 endpoint state and source filter lists via sysctl(3). 1297 1298 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1299 loopback of IPv6 multicast datagrams by default; it defaults to 1 1300 to preserve the existing behaviour. Disabling multicast loopback is 1301 recommended for optimal system performance. 1302 1303 * The IPv6 MROUTING code has been changed to examine this sysctl 1304 instead of attempting to perform a group lookup before looping 1305 back forwarded datagrams. 1306 1307 Bump __FreeBSD_version to 800084. 1308 130920090422: 1310 Implement low-level Bluetooth HCI API. 1311 Bump __FreeBSD_version to 800083. 1312 131320090419: 1314 The layout of struct malloc_type, used by modules to register new 1315 memory allocation types, has changed. Most modules will need to 1316 be rebuilt or panics may be experienced. 1317 Bump __FreeBSD_version to 800081. 1318 131920090415: 1320 Anticipate overflowing inp_flags - add inp_flags2. 1321 This changes most offsets in inpcb, so checking v4 connection 1322 state will require a world rebuild. 1323 Bump __FreeBSD_version to 800080. 1324 132520090415: 1326 Add an llentry to struct route and struct route_in6. Modules 1327 embedding a struct route will need to be recompiled. 1328 Bump __FreeBSD_version to 800079. 1329 133020090414: 1331 The size of rt_metrics_lite and by extension rtentry has changed. 1332 Networking administration apps will need to be recompiled. 1333 The route command now supports show as an alias for get, weighting 1334 of routes, sticky and nostick flags to alter the behavior of stateful 1335 load balancing. 1336 Bump __FreeBSD_version to 800078. 1337 133820090408: 1339 Do not use Giant for kbdmux(4) locking. This is wrong and 1340 apparently causing more problems than it solves. This will 1341 re-open the issue where interrupt handlers may race with 1342 kbdmux(4) in polling mode. Typical symptoms include (but 1343 not limited to) duplicated and/or missing characters when 1344 low level console functions (such as gets) are used while 1345 interrupts are enabled (for example geli password prompt, 1346 mountroot prompt etc.). Disabling kbdmux(4) may help. 1347 134820090407: 1349 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1350 kernel modules referencing any of the above need to be recompiled. 1351 Bump __FreeBSD_version to 800075. 1352 135320090320: 1354 GEOM_PART has become the default partition slicer for storage devices, 1355 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1356 introduces some changes: 1357 1358 MSDOS/EBR: the devices created from MSDOS extended partition entries 1359 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1360 to devices with offset-based names. fstabs may need to be modified. 1361 1362 BSD: the "geometry does not match label" warning is harmless in most 1363 cases but it points to problems in file system misalignment with 1364 disk geometry. The "c" partition is now implicit, covers the whole 1365 top-level drive and cannot be (mis)used by users. 1366 1367 General: Kernel dumps are now not allowed to be written to devices 1368 whose partition types indicate they are meant to be used for file 1369 systems (or, in case of MSDOS partitions, as something else than 1370 the "386BSD" type). 1371 1372 Most of these changes date approximately from 200812. 1373 137420090319: 1375 The uscanner(4) driver has been removed from the kernel. This follows 1376 Linux removing theirs in 2.6 and making libusb the default interface 1377 (supported by sane). 1378 137920090319: 1380 The multicast forwarding code has been cleaned up. netstat(1) 1381 only relies on KVM now for printing bandwidth upcall meters. 1382 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1383 ip6_mroute_mod respectively. The config(5) options for statically 1384 compiling this code remain the same, i.e. 'options MROUTING'. 1385 138620090315: 1387 Support for the IFF_NEEDSGIANT network interface flag has been 1388 removed, which means that non-MPSAFE network device drivers are no 1389 longer supported. In particular, if_ar, if_sr, and network device 1390 drivers from the old (legacy) USB stack can no longer be built or 1391 used. 1392 139320090313: 1394 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1395 a bunch of new language catalog files have also been added. 1396 This means that some common libc messages are now localized and 1397 they depend on the LC_MESSAGES environmental variable. 1398 139920090313: 1400 The k8temp(4) driver has been renamed to amdtemp(4) since 1401 support for Family 10 and Family 11 CPU families was added. 1402 140320090309: 1404 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1405 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1406 1407 For kernel developers, the most important changes are that the 1408 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1409 and this lock has been downgraded to a non-recursive mutex. 1410 1411 Transport protocols (UDP, Raw IP) are now responsible for filtering 1412 inbound multicast traffic according to group membership and source 1413 filters. The imo_multicast_filter() KPI exists for this purpose. 1414 Transports which do not use multicast (SCTP, TCP) already reject 1415 multicast by default. Forwarding and receive performance may improve 1416 as a mutex acquisition is no longer needed in the ip_input() 1417 low-level input path. in_addmulti() and in_delmulti() are shimmed 1418 to new KPIs which exist to support SSM in-kernel. 1419 1420 For application developers, it is recommended that loopback of 1421 multicast datagrams be disabled for best performance, as this 1422 will still cause the lock to be taken for each looped-back 1423 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1424 be tuned to 0 to disable loopback by default; it defaults to 1 1425 to preserve the existing behaviour. 1426 1427 For systems administrators, to obtain best performance with 1428 multicast reception and multiple groups, it is always recommended 1429 that a card with a suitably precise hash filter is used. Hash 1430 collisions will still result in the lock being taken within the 1431 transport protocol input path to check group membership. 1432 1433 If deploying FreeBSD in an environment with IGMP snooping switches, 1434 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1435 enabled; this forces 224.0.0.0/24 group membership to be announced 1436 via IGMP. 1437 1438 The size of 'struct igmpstat' has changed; netstat needs to be 1439 recompiled to reflect this. 1440 Bump __FreeBSD_version to 800070. 1441 144220090309: 1443 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1444 updated to use it. This requires a buildworld/installworld in order to 1445 update the library and dependencies (usbconfig, etc). Its advisable to 1446 rebuild all ports which uses libusb. More specific directions are given 1447 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1448 libusb are no longer required and can be removed. 1449 145020090302: 1451 A workaround is committed to allow the creation of System V shared 1452 memory segment of size > 2 GB on the 64-bit architectures. 1453 Due to a limitation of the existing ABI, the shm_segsz member 1454 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1455 wrong for large segments. Note that limits must be explicitly 1456 raised to allow such segments to be created. 1457 145820090301: 1459 The layout of struct ifnet has changed, requiring a rebuild of all 1460 network device driver modules. 1461 146220090227: 1463 The /dev handling for the new USB stack has changed, a 1464 buildworld/installworld is required for libusb20. 1465 146620090223: 1467 The new USB2 stack has now been permanently moved in and all kernel and 1468 module names reverted to their previous values (eg, usb, ehci, ohci, 1469 ums, ...). The old usb stack can be compiled in by prefixing the name 1470 with the letter 'o', the old usb modules have been removed. 1471 Updating entry 20090216 for xorg and 20090215 for libmap may still 1472 apply. 1473 147420090217: 1475 The rc.conf(5) option if_up_delay has been renamed to 1476 defaultroute_delay to better reflect its purpose. If you have 1477 customized this setting in /etc/rc.conf you need to update it to 1478 use the new name. 1479 148020090216: 1481 xorg 7.4 wants to configure its input devices via hald which does not 1482 yet work with USB2. If the keyboard/mouse does not work in xorg then 1483 add 1484 Option "AllowEmptyInput" "off" 1485 to your ServerLayout section. This will cause X to use the configured 1486 kbd and mouse sections from your xorg.conf. 1487 148820090215: 1489 The GENERIC kernels for all architectures now default to the new USB2 1490 stack. No kernel config options or code have been removed so if a 1491 problem arises please report it and optionally revert to the old USB 1492 stack. If you are loading USB kernel modules or have a custom kernel 1493 that includes GENERIC then ensure that usb names are also changed over, 1494 eg uftdi -> usb2_serial_ftdi. 1495 1496 Older programs linked against the ports libusb 0.1 need to be 1497 redirected to the new stack's libusb20. /etc/libmap.conf can 1498 be used for this: 1499 # Map old usb library to new one for usb2 stack 1500 libusb-0.1.so.8 libusb20.so.1 1501 150220090209: 1503 All USB ethernet devices now attach as interfaces under the name ueN 1504 (eg. ue0). This is to provide a predictable name as vendors often 1505 change usb chipsets in a product without notice. 1506 150720090203: 1508 The ichsmb(4) driver has been changed to require SMBus slave 1509 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1510 All of the other SMBus controller drivers require left-justified 1511 slave addresses, so this change makes all the drivers provide the 1512 same interface. 1513 151420090201: 1515 INET6 statistics (struct ip6stat) was updated. 1516 netstat(1) needs to be recompiled. 1517 151820090119: 1519 NTFS has been removed from GENERIC kernel on amd64 to match 1520 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1521 will load ntfs.ko module automatically when NTFS support is 1522 actually needed, unless ntfs.ko is not installed or security 1523 level prohibits loading kernel modules. If either is the case, 1524 "options NTFS" has to be added into kernel config. 1525 152620090115: 1527 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1528 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1529 800061. User space tools that rely on the size of struct tcpcb in 1530 tcp_var.h (e.g. sockstat) need to be recompiled. 1531 153220081225: 1533 ng_tty(4) module updated to match the new TTY subsystem. 1534 Due to API change, user-level applications must be updated. 1535 New API support added to mpd5 CVS and expected to be present 1536 in next mpd5.3 release. 1537 153820081219: 1539 With __FreeBSD_version 800060 the makefs tool is part of 1540 the base system (it was a port). 1541 154220081216: 1543 The afdata and ifnet locks have been changed from mutexes to 1544 rwlocks, network modules will need to be re-compiled. 1545 154620081214: 1547 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1548 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1549 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1550 architecture and 40 bytes on 64-bit architecture. The userland 1551 applications "arp" and "ndp" have been updated accordingly. 1552 The output from "netstat -r" shows only routing entries and 1553 none of the L2 information. 1554 155520081130: 1556 __FreeBSD_version 800057 marks the switchover from the 1557 binary ath hal to source code. Users must add the line: 1558 1559 options AH_SUPPORT_AR5416 1560 1561 to their kernel config files when specifying: 1562 1563 device ath_hal 1564 1565 The ath_hal module no longer exists; the code is now compiled 1566 together with the driver in the ath module. It is now 1567 possible to tailor chip support (i.e. reduce the set of chips 1568 and thereby the code size); consult ath_hal(4) for details. 1569 157020081121: 1571 __FreeBSD_version 800054 adds memory barriers to 1572 <machine/atomic.h>, new interfaces to ifnet to facilitate 1573 multiple hardware transmit queues for cards that support 1574 them, and a lock-less ring-buffer implementation to 1575 enable drivers to more efficiently manage queueing of 1576 packets. 1577 157820081117: 1579 A new version of ZFS (version 13) has been merged to -HEAD. 1580 This version has zpool attribute "listsnapshots" off by 1581 default, which means "zfs list" does not show snapshots, 1582 and is the same as Solaris behavior. 1583 158420081028: 1585 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1586 158720081009: 1588 The uhci, ohci, ehci and slhci USB Host controller drivers have 1589 been put into separate modules. If you load the usb module 1590 separately through loader.conf you will need to load the 1591 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1592 controller add the following to loader.conf: 1593 1594 uhci_load="YES" 1595 ehci_load="YES" 1596 159720081009: 1598 The ABI used by the PMC toolset has changed. Please keep 1599 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1600 sync. 1601 160220081009: 1603 atapci kernel module now includes only generic PCI ATA 1604 driver. AHCI driver moved to ataahci kernel module. 1605 All vendor-specific code moved into separate kernel modules: 1606 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1607 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1608 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1609 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1610 161120080820: 1612 The TTY subsystem of the kernel has been replaced by a new 1613 implementation, which provides better scalability and an 1614 improved driver model. Most common drivers have been migrated to 1615 the new TTY subsystem, while others have not. The following 1616 drivers have not yet been ported to the new TTY layer: 1617 1618 PCI/ISA: 1619 cy, digi, rc, rp, sio 1620 1621 USB: 1622 ubser, ucycom 1623 1624 Line disciplines: 1625 ng_h4, ng_tty, ppp, sl, snp 1626 1627 Adding these drivers to your kernel configuration file shall 1628 cause compilation to fail. 1629 163020080818: 1631 ntpd has been upgraded to 4.2.4p5. 1632 163320080801: 1634 OpenSSH has been upgraded to 5.1p1. 1635 1636 For many years, FreeBSD's version of OpenSSH preferred DSA 1637 over RSA for host and user authentication keys. With this 1638 upgrade, we've switched to the vendor's default of RSA over 1639 DSA. This may cause upgraded clients to warn about unknown 1640 host keys even for previously known hosts. Users should 1641 follow the usual procedure for verifying host keys before 1642 accepting the RSA key. 1643 1644 This can be circumvented by setting the "HostKeyAlgorithms" 1645 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1646 command line. 1647 1648 Please note that the sequence of keys offered for 1649 authentication has been changed as well. You may want to 1650 specify IdentityFile in a different order to revert this 1651 behavior. 1652 165320080713: 1654 The sio(4) driver has been removed from the i386 and amd64 1655 kernel configuration files. This means uart(4) is now the 1656 default serial port driver on those platforms as well. 1657 1658 To prevent collisions with the sio(4) driver, the uart(4) driver 1659 uses different names for its device nodes. This means the 1660 onboard serial port will now most likely be called "ttyu0" 1661 instead of "ttyd0". You may need to reconfigure applications to 1662 use the new device names. 1663 1664 When using the serial port as a boot console, be sure to update 1665 /boot/device.hints and /etc/ttys before booting the new kernel. 1666 If you forget to do so, you can still manually specify the hints 1667 at the loader prompt: 1668 1669 set hint.uart.0.at="isa" 1670 set hint.uart.0.port="0x3F8" 1671 set hint.uart.0.flags="0x10" 1672 set hint.uart.0.irq="4" 1673 boot -s 1674 167520080609: 1676 The gpt(8) utility has been removed. Use gpart(8) to partition 1677 disks instead. 1678 167920080603: 1680 The version that Linuxulator emulates was changed from 2.4.2 1681 to 2.6.16. If you experience any problems with Linux binaries 1682 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1683 if it fixes the problem contact emulation mailing list. 1684 168520080525: 1686 ISDN4BSD (I4B) was removed from the src tree. You may need to 1687 update a your kernel configuration and remove relevant entries. 1688 168920080509: 1690 I have checked in code to support multiple routing tables. 1691 See the man pages setfib(1) and setfib(2). 1692 This is a hopefully backwards compatible version, 1693 but to make use of it you need to compile your kernel 1694 with options ROUTETABLES=2 (or more up to 16). 1695 169620080420: 1697 The 802.11 wireless support was redone to enable multi-bss 1698 operation on devices that are capable. The underlying device 1699 is no longer used directly but instead wlanX devices are 1700 cloned with ifconfig. This requires changes to rc.conf files. 1701 For example, change: 1702 ifconfig_ath0="WPA DHCP" 1703 to 1704 wlans_ath0=wlan0 1705 ifconfig_wlan0="WPA DHCP" 1706 see rc.conf(5) for more details. In addition, mergemaster of 1707 /etc/rc.d is highly recommended. Simultaneous update of userland 1708 and kernel wouldn't hurt either. 1709 1710 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1711 modules were merged into the base wlan module. All references 1712 to these modules (e.g. in kernel config files) must be removed. 1713 171420080408: 1715 psm(4) has gained write(2) support in native operation level. 1716 Arbitrary commands can be written to /dev/psm%d and status can 1717 be read back from it. Therefore, an application is responsible 1718 for status validation and error recovery. It is a no-op in 1719 other operation levels. 1720 172120080312: 1722 Support for KSE threading has been removed from the kernel. To 1723 run legacy applications linked against KSE libmap.conf may 1724 be used. The following libmap.conf may be used to ensure 1725 compatibility with any prior release: 1726 1727 libpthread.so.1 libthr.so.1 1728 libpthread.so.2 libthr.so.2 1729 libkse.so.3 libthr.so.3 1730 173120080301: 1732 The layout of struct vmspace has changed. This affects libkvm 1733 and any executables that link against libkvm and use the 1734 kvm_getprocs() function. In particular, but not exclusively, 1735 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1736 The effects are minimal, but it's advisable to upgrade world 1737 nonetheless. 1738 173920080229: 1740 The latest em driver no longer has support in it for the 1741 82575 adapter, this is now moved to the igb driver. The 1742 split was done to make new features that are incompatible 1743 with older hardware easier to do. 1744 174520080220: 1746 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1747 likewise the kernel option is now GEOM_LINUX_LVM. 1748 174920080211: 1750 The default NFS mount mode has changed from UDP to TCP for 1751 increased reliability. If you rely on (insecurely) NFS 1752 mounting across a firewall you may need to update your 1753 firewall rules. 1754 175520080208: 1756 Belatedly note the addition of m_collapse for compacting 1757 mbuf chains. 1758 175920080126: 1760 The fts(3) structures have been changed to use adequate 1761 integer types for their members and so to be able to cope 1762 with huge file trees. The old fts(3) ABI is preserved 1763 through symbol versioning in libc, so third-party binaries 1764 using fts(3) should still work, although they will not take 1765 advantage of the extended types. At the same time, some 1766 third-party software might fail to build after this change 1767 due to unportable assumptions made in its source code about 1768 fts(3) structure members. Such software should be fixed 1769 by its vendor or, in the worst case, in the ports tree. 1770 FreeBSD_version 800015 marks this change for the unlikely 1771 case that a portable fix is impossible. 1772 177320080123: 1774 To upgrade to -current after this date, you must be running 1775 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1776 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1777 177820071128: 1779 The ADAPTIVE_GIANT kernel option has been retired because its 1780 functionality is the default now. 1781 178220071118: 1783 The AT keyboard emulation of sunkbd(4) has been turned on 1784 by default. In order to make the special symbols of the Sun 1785 keyboards driven by sunkbd(4) work under X these now have 1786 to be configured the same way as Sun USB keyboards driven 1787 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1788 1789 Option "XkbLayout" "us" 1790 Option "XkbRules" "xorg" 1791 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1792 179320071024: 1794 It has been decided that it is desirable to provide ABI 1795 backwards compatibility to the FreeBSD 4/5/6 versions of the 1796 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1797 broken with the introduction of PCI domain support (see the 1798 20070930 entry). Unfortunately, this required the ABI of 1799 PCIOCGETCONF to be broken again in order to be able to 1800 provide backwards compatibility to the old version of that 1801 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1802 again. As for prominent ports this affects neither pciutils 1803 nor xorg-server this time, the hal port needs to be rebuilt 1804 however. 1805 180620071020: 1807 The misnamed kthread_create() and friends have been renamed 1808 to kproc_create() etc. Many of the callers already 1809 used kproc_start().. 1810 I will return kthread_create() and friends in a while 1811 with implementations that actually create threads, not procs. 1812 Renaming corresponds with version 800002. 1813 181420071010: 1815 RELENG_7 branched. 1816 1817COMMON ITEMS: 1818 1819 General Notes 1820 ------------- 1821 Avoid using make -j when upgrading. While generally safe, there are 1822 sometimes problems using -j to upgrade. If your upgrade fails with 1823 -j, please try again without -j. From time to time in the past there 1824 have been problems using -j with buildworld and/or installworld. This 1825 is especially true when upgrading between "distant" versions (eg one 1826 that cross a major release boundary or several minor releases, or when 1827 several months have passed on the -current branch). 1828 1829 Sometimes, obscure build problems are the result of environment 1830 poisoning. This can happen because the make utility reads its 1831 environment when searching for values for global variables. To run 1832 your build attempts in an "environmental clean room", prefix all make 1833 commands with 'env -i '. See the env(1) manual page for more details. 1834 1835 When upgrading from one major version to another it is generally best 1836 to upgrade to the latest code in the currently installed branch first, 1837 then do an upgrade to the new branch. This is the best-tested upgrade 1838 path, and has the highest probability of being successful. Please try 1839 this approach before reporting problems with a major version upgrade. 1840 1841 When upgrading a live system, having a root shell around before 1842 installing anything can help undo problems. Not having a root shell 1843 around can lead to problems if pam has changed too much from your 1844 starting point to allow continued authentication after the upgrade. 1845 1846 ZFS notes 1847 --------- 1848 When upgrading the boot ZFS pool to a new version, always follow 1849 these two steps: 1850 1851 1.) recompile and reinstall the ZFS boot loader and boot block 1852 (this is part of "make buildworld" and "make installworld") 1853 1854 2.) update the ZFS boot block on your boot drive 1855 1856 The following example updates the ZFS boot block on the first 1857 partition (freebsd-boot) of a GPT partitioned drive ad0: 1858 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 1859 1860 Non-boot pools do not need these updates. 1861 1862 To build a kernel 1863 ----------------- 1864 If you are updating from a prior version of FreeBSD (even one just 1865 a few days old), you should follow this procedure. It is the most 1866 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1867 1868 make kernel-toolchain 1869 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1870 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1871 1872 To test a kernel once 1873 --------------------- 1874 If you just want to boot a kernel once (because you are not sure 1875 if it works, or if you want to boot a known bad kernel to provide 1876 debugging information) run 1877 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1878 nextboot -k testkernel 1879 1880 To just build a kernel when you know that it won't mess you up 1881 -------------------------------------------------------------- 1882 This assumes you are already running a CURRENT system. Replace 1883 ${arch} with the architecture of your machine (e.g. "i386", 1884 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1885 1886 cd src/sys/${arch}/conf 1887 config KERNEL_NAME_HERE 1888 cd ../compile/KERNEL_NAME_HERE 1889 make depend 1890 make 1891 make install 1892 1893 If this fails, go to the "To build a kernel" section. 1894 1895 To rebuild everything and install it on the current system. 1896 ----------------------------------------------------------- 1897 # Note: sometimes if you are running current you gotta do more than 1898 # is listed here if you are upgrading from a really old current. 1899 1900 <make sure you have good level 0 dumps> 1901 make buildworld 1902 make kernel KERNCONF=YOUR_KERNEL_HERE 1903 [1] 1904 <reboot in single user> [3] 1905 mergemaster -p [5] 1906 make installworld 1907 mergemaster -i [4] 1908 make delete-old [6] 1909 <reboot> 1910 1911 To cross-install current onto a separate partition 1912 -------------------------------------------------- 1913 # In this approach we use a separate partition to hold 1914 # current's root, 'usr', and 'var' directories. A partition 1915 # holding "/", "/usr" and "/var" should be about 2GB in 1916 # size. 1917 1918 <make sure you have good level 0 dumps> 1919 <boot into -stable> 1920 make buildworld 1921 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1922 <maybe newfs current's root partition> 1923 <mount current's root partition on directory ${CURRENT_ROOT}> 1924 make installworld DESTDIR=${CURRENT_ROOT} 1925 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1926 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1927 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1928 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1929 <reboot into current> 1930 <do a "native" rebuild/install as described in the previous section> 1931 <maybe install compatibility libraries from ports/misc/compat*> 1932 <reboot> 1933 1934 1935 To upgrade in-place from stable to current 1936 ---------------------------------------------- 1937 <make sure you have good level 0 dumps> 1938 make buildworld [9] 1939 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1940 [1] 1941 <reboot in single user> [3] 1942 mergemaster -p [5] 1943 make installworld 1944 mergemaster -i [4] 1945 make delete-old [6] 1946 <reboot> 1947 1948 Make sure that you've read the UPDATING file to understand the 1949 tweaks to various things you need. At this point in the life 1950 cycle of current, things change often and you are on your own 1951 to cope. The defaults can also change, so please read ALL of 1952 the UPDATING entries. 1953 1954 Also, if you are tracking -current, you must be subscribed to 1955 freebsd-current@freebsd.org. Make sure that before you update 1956 your sources that you have read and understood all the recent 1957 messages there. If in doubt, please track -stable which has 1958 much fewer pitfalls. 1959 1960 [1] If you have third party modules, such as vmware, you 1961 should disable them at this point so they don't crash your 1962 system on reboot. 1963 1964 [3] From the bootblocks, boot -s, and then do 1965 fsck -p 1966 mount -u / 1967 mount -a 1968 cd src 1969 adjkerntz -i # if CMOS is wall time 1970 Also, when doing a major release upgrade, it is required that 1971 you boot into single user mode to do the installworld. 1972 1973 [4] Note: This step is non-optional. Failure to do this step 1974 can result in a significant reduction in the functionality of the 1975 system. Attempting to do it by hand is not recommended and those 1976 that pursue this avenue should read this file carefully, as well 1977 as the archives of freebsd-current and freebsd-hackers mailing lists 1978 for potential gotchas. The -U option is also useful to consider. 1979 See mergemaster(8) for more information. 1980 1981 [5] Usually this step is a noop. However, from time to time 1982 you may need to do this if you get unknown user in the following 1983 step. It never hurts to do it all the time. You may need to 1984 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1985 install) after the buildworld before this step if you last updated 1986 from current before 20130425 or from -stable before 20130430. 1987 1988 [6] This only deletes old files and directories. Old libraries 1989 can be deleted by "make delete-old-libs", but you have to make 1990 sure that no program is using those libraries anymore. 1991 1992 [8] In order to have a kernel that can run the 4.x binaries needed to 1993 do an installworld, you must include the COMPAT_FREEBSD4 option in 1994 your kernel. Failure to do so may leave you with a system that is 1995 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 1996 required to run the 5.x binaries on more recent kernels. And so on 1997 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 1998 1999 Make sure that you merge any new devices from GENERIC since the 2000 last time you updated your kernel config file. 2001 2002 [9] When checking out sources, you must include the -P flag to have 2003 cvs prune empty directories. 2004 2005 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2006 "?=" instead of the "=" assignment operator, so that buildworld can 2007 override the CPUTYPE if it needs to. 2008 2009 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2010 not on the command line, or in /etc/make.conf. buildworld will 2011 warn if it is improperly defined. 2012FORMAT: 2013 2014This file contains a list, in reverse chronological order, of major 2015breakages in tracking -current. It is not guaranteed to be a complete 2016list of such breakages, and only contains entries since October 10, 2007. 2017If you need to see UPDATING entries from before that date, you will need 2018to fetch an UPDATING file from an older FreeBSD release. 2019 2020Copyright information: 2021 2022Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2023 2024Redistribution, publication, translation and use, with or without 2025modification, in full or in part, in any form or format of this 2026document are permitted without further permission from the author. 2027 2028THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2029IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2030WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2031DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2032INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2033(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2034SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2035HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2036STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2037IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2038POSSIBILITY OF SUCH DAMAGE. 2039 2040Contact Warner Losh if you have any questions about your use of 2041this document. 2042 2043$FreeBSD: releng/10.0/UPDATING 259758 2013-12-23 01:24:21Z hrs $ 2044