UPDATING revision 264267
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 1920140408: p1 FreeBSD-SA-14:05.nfsserver 20 FreeBSD-SA-14:06.openssl 21 Fix deadlock in the NFS server. [SA-14:05] 22 23 Fix multiple vulnerabilities in OpenSSL. [SA-14:06] 24 2520131223: 26 The behavior of gss_pseudo_random() for the krb5 mechanism 27 has changed, for applications requesting a longer random string 28 than produced by the underlying enctype's pseudo-random() function. 29 In particular, the random string produced from a session key of 30 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 31 be different at the 17th octet and later, after this change. 32 The counter used in the PRF+ construction is now encoded as a 33 big-endian integer in accordance with RFC 4402. 34 3520131031: 36 The default version of mtree is nmtree which is obtained from 37 NetBSD. The output is generally the same, but may vary 38 slightly. If you found you need identical output adding 39 "-F freebsd9" to the command line should do the trick. For the 40 time being, the old mtree is available as fmtree. 41 4220131014: 43 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 44 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 45 1.1.4_8 and verify bsdyml not linked in, before running "make 46 delete-old-libs": 47 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 48 or 49 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 50 5120131010: 52 The rc.d/jail script has been updated to support jail(8) 53 configuration file. The "jail_<jname>_*" rc.conf(5) variables 54 for per-jail configuration are automatically converted to 55 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 56 This is transparently backward compatible. See below about some 57 incompatibilities and rc.conf(5) manual page for more details. 58 59 These variables are now deprecated in favor of jail(8) configuration 60 file. One can use "rc.d/jail config <jname>" command to generate 61 a jail(8) configuration file in /var/run/jail.<jname>.conf without 62 running the jail(8) utility. The default pathname of the 63 configuration file is /etc/jail.conf and can be specified by 64 using $jail_conf or $jail_<jname>_conf variables. 65 66 Please note that jail_devfs_ruleset accepts an integer at 67 this moment. Please consider to rewrite the ruleset name 68 with an integer. 69 7020130930: 71 BIND has been removed from the base system. If all you need 72 is a local resolver, simply enable and start the local_unbound 73 service instead. Otherwise, several versions of BIND are 74 available in the ports tree. The dns/bind99 port is one example. 75 76 With this change, nslookup(1) and dig(1) are no longer in the base 77 system. Users should instead use host(1) and drill(1) which are 78 in the base system. Alternatively, nslookup and dig can 79 be obtained by installing the dns/bind-tools port. 80 8120130916: 82 With the addition of unbound(8), a new unbound user is now 83 required during installworld. "mergemaster -p" can be used to 84 add the user prior to installworld, as documented in the handbook. 85 8620130911: 87 OpenSSH is now built with DNSSEC support, and will by default 88 silently trust signed SSHFP records. This can be controlled with 89 the VerifyHostKeyDNS client configuration setting. DNSSEC support 90 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 91 9220130906: 93 The GNU Compiler Collection and C++ standard library (libstdc++) 94 are no longer built by default on platforms where clang is the system 95 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 96 options in src.conf. 97 9820130905: 99 The PROCDESC kernel option is now part of the GENERIC kernel 100 configuration and is required for the rwhod(8) to work. 101 If you are using custom kernel configuration, you should include 102 'options PROCDESC'. 103 10420130905: 105 The API and ABI related to the Capsicum framework was modified 106 in backward incompatible way. The userland libraries and programs 107 have to be recompiled to work with the new kernel. This includes the 108 following libraries and programs, but the whole buildworld is 109 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 110 kdump, procstat, rwho, rwhod, uniq. 111 11220130903: 113 AES-NI intrinsic support has been added to gcc. The AES-NI module 114 has been updated to use this support. A new gcc is required to build 115 the aesni module on both i386 and amd64. 116 11720130821: 118 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 119 Thus "device padlock_rng" and "device rdrand_rng" should be 120 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 121 12220130813: 123 WITH_ICONV has been split into two feature sets. WITH_ICONV now 124 enables just the iconv* functionality and is now on by default. 125 WITH_LIBICONV_COMPAT enables the libiconv api and link time 126 compatability. Set WITHOUT_ICONV to build the old way. 127 If you have been using WITH_ICONV before, you will very likely 128 need to turn on WITH_LIBICONV_COMPAT. 129 13020130806: 131 INVARIANTS option now enables DEBUG for code with OpenSolaris and 132 Illumos origin, including ZFS. If you have INVARIANTS in your 133 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 134 explicitly. 135 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 136 locks if WITNESS option was set. Because that generated a lot of 137 witness(9) reports and all of them were believed to be false 138 positives, this is no longer done. New option OPENSOLARIS_WITNESS 139 can be used to achieve the previous behavior. 140 14120130806: 142 Timer values in IPv6 data structures now use time_uptime instead 143 of time_second. Although this is not a user-visible functional 144 change, userland utilities which directly use them---ndp(8), 145 rtadvd(8), and rtsold(8) in the base system---need to be updated 146 to r253970 or later. 147 14820130802: 149 find -delete can now delete the pathnames given as arguments, 150 instead of only files found below them or if the pathname did 151 not contain any slashes. Formerly, the following error message 152 would result: 153 154 find: -delete: <path>: relative path potentially not safe 155 156 Deleting the pathnames given as arguments can be prevented 157 without error messages using -mindepth 1 or by changing 158 directory and passing "." as argument to find. This works in the 159 old as well as the new version of find. 160 16120130726: 162 Behavior of devfs rules path matching has been changed. 163 Pattern is now always matched against fully qualified devfs 164 path and slash characters must be explicitly matched by 165 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 166 subdirectories must be reviewed. 167 16820130716: 169 The default ARM ABI has changed to the ARM EABI. The old ABI is 170 incompatible with the ARM EABI and all programs and modules will 171 need to be rebuilt to work with a new kernel. 172 173 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 174 175 NOTE: Support for the old ABI will be removed in the future and 176 users are advised to upgrade. 177 17820130709: 179 pkg_install has been disconnected from the build if you really need it 180 you should add WITH_PKGTOOLS in your src.conf(5). 181 18220130709: 183 Most of network statistics structures were changed to be able 184 keep 64-bits counters. Thus all tools, that work with networking 185 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 186 18720130629: 188 Fix targets that run multiple make's to use && rather than ; 189 so that subsequent steps depend on success of previous. 190 191 NOTE: if building 'universe' with -j* on stable/8 or stable/9 192 it would be better to start the build using bmake, to avoid 193 overloading the machine. 194 19520130618: 196 Fix a bug that allowed a tracing process (e.g. gdb) to write 197 to a memory-mapped file in the traced process's address space 198 even if neither the traced process nor the tracing process had 199 write access to that file. 200 20120130615: 202 CVS has been removed from the base system. An exact copy 203 of the code is available from the devel/cvs port. 204 20520130613: 206 Some people report the following error after the switch to bmake: 207 208 make: illegal option -- J 209 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 210 ... 211 *** [buildworld] Error code 2 212 213 this likely due to an old instance of make in 214 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 215 which src/Makefile will use that blindly, if it exists, so if 216 you see the above error: 217 218 rm -rf `make -V MAKEPATH` 219 220 should resolve it. 221 22220130516: 223 Use bmake by default. 224 Whereas before one could choose to build with bmake via 225 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 226 make. The goal is to remove these knobs for 10-RELEASE. 227 228 It is worth noting that bmake (like gmake) treats the command 229 line as the unit of failure, rather than statements within the 230 command line. Thus '(cd some/where && dosomething)' is safer 231 than 'cd some/where; dosomething'. The '()' allows consistent 232 behavior in parallel build. 233 23420130429: 235 Fix a bug that allows NFS clients to issue READDIR on files. 236 23720130426: 238 The WITHOUT_IDEA option has been removed because 239 the IDEA patent expired. 240 24120130426: 242 The sysctl which controls TRIM support under ZFS has been renamed 243 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 244 enabled by default. 245 24620130425: 247 The mergemaster command now uses the default MAKEOBJDIRPREFIX 248 rather than creating it's own in the temporary directory in 249 order allow access to bootstrapped versions of tools such as 250 install and mtree. When upgrading from version of FreeBSD where 251 the install command does not support -l, you will need to 252 install a new mergemaster command if mergemaster -p is required. 253 This can be accomplished with the command (cd src/usr.sbin/mergemaster 254 && make install). 255 25620130404: 257 Legacy ATA stack, disabled and replaced by new CAM-based one since 258 FreeBSD 9.0, completely removed from the sources. Kernel modules 259 atadisk and atapi*, user-level tools atacontrol and burncd are 260 removed. Kernel option `options ATA_CAM` is now permanently enabled 261 and removed. 262 26320130319: 264 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 265 and socketpair(2). Software, in particular Kerberos, may 266 automatically detect and use these during building. The resulting 267 binaries will not work on older kernels. 268 26920130308: 270 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 271 information, see the respective 20130304 entry). 272 27320130304: 274 Recent commits to callout(9) changed the size of struct callout, 275 so the KBI is probably heavily disturbed. Also, some functions 276 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 277 by macros. Every kernel module using it won't load, so rebuild 278 is requested. 279 280 The ctl device has been re-enabled in GENERIC for i386 and amd64, 281 but does not initialize by default (because of the new CTL_DISABLE 282 option) to save memory. To re-enable it, remove the CTL_DISABLE 283 option from the kernel config file or set kern.cam.ctl.disable=0 284 in /boot/loader.conf. 285 28620130301: 287 The ctl device has been disabled in GENERIC for i386 and amd64. 288 This was done due to the extra memory being allocated at system 289 initialisation time by the ctl driver which was only used if 290 a CAM target device was created. This makes a FreeBSD system 291 unusable on 128MB or less of RAM. 292 29320130208: 294 A new compression method (lz4) has been merged to -HEAD. Please 295 refer to zpool-features(7) for more information. 296 297 Please refer to the "ZFS notes" section of this file for information 298 on upgrading boot ZFS pools. 299 30020130129: 301 A BSD-licensed patch(1) variant has been added and is installed 302 as bsdpatch, being the GNU version the default patch. 303 To inverse the logic and use the BSD-licensed one as default, 304 while having the GNU version installed as gnupatch, rebuild 305 and install world with the WITH_BSD_PATCH knob set. 306 30720130121: 308 Due to the use of the new -l option to install(1) during build 309 and install, you must take care not to directly set the INSTALL 310 make variable in your /etc/make.conf, /etc/src.conf, or on the 311 command line. If you wish to use the -C flag for all installs 312 you may be able to add INSTALL+=-C to /etc/make.conf or 313 /etc/src.conf. 314 31520130118: 316 The install(1) option -M has changed meaning and now takes an 317 argument that is a file or path to append logs to. In the 318 unlikely event that -M was the last option on the command line 319 and the command line contained at least two files and a target 320 directory the first file will have logs appended to it. The -M 321 option served little practical purpose in the last decade so its 322 use is expected to be extremely rare. 323 32420121223: 325 After switching to Clang as the default compiler some users of ZFS 326 on i386 systems started to experience stack overflow kernel panics. 327 Please consider using 'options KSTACK_PAGES=4' in such configurations. 328 32920121222: 330 GEOM_LABEL now mangles label names read from file system metadata. 331 Mangling affect labels containing spaces, non-printable characters, 332 '%' or '"'. Device names in /etc/fstab and other places may need to 333 be updated. 334 33520121217: 336 By default, only the 10 most recent kernel dumps will be saved. To 337 restore the previous behaviour (no limit on the number of kernel dumps 338 stored in the dump directory) add the following line to /etc/rc.conf: 339 340 savecore_flags="" 341 34220121201: 343 With the addition of auditdistd(8), a new auditdistd user is now 344 required during installworld. "mergemaster -p" can be used to 345 add the user prior to installworld, as documented in the handbook. 346 34720121117: 348 The sin6_scope_id member variable in struct sockaddr_in6 is now 349 filled by the kernel before passing the structure to the userland via 350 sysctl or routing socket. This means the KAME-specific embedded scope 351 id in sin6_addr.s6_addr[2] is always cleared in userland application. 352 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 353 __FreeBSD_version is bumped to 1000025. 354 35520121105: 356 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 357 This means that the world and kernel will be compiled with clang 358 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 359 and /usr/bin/cpp. To disable this behavior and revert to building 360 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 361 of current may need to bootstrap WITHOUT_CLANG first if the clang 362 build fails (its compatibility window doesn't extend to the 9 stable 363 branch point). 364 36520121102: 366 The IPFIREWALL_FORWARD kernel option has been removed. Its 367 functionality now turned on by default. 368 36920121023: 370 The ZERO_COPY_SOCKET kernel option has been removed and 371 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 372 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 373 mechanism which is not safe and may result in kernel crashes. 374 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 375 driver supports disposeable external page sized mbuf storage. 376 Proper replacements for both zero-copy mechanisms are under 377 consideration and will eventually lead to complete removal 378 of the two kernel options. 379 38020121023: 381 The IPv4 network stack has been converted to network byte 382 order. The following modules need to be recompiled together 383 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 384 pf(4), ipfw(4), ng_ipfw(4), stf(4). 385 38620121022: 387 Support for non-MPSAFE filesystems was removed from VFS. The 388 VFS_VERSION was bumped, all filesystem modules shall be 389 recompiled. 390 39120121018: 392 All the non-MPSAFE filesystems have been disconnected from 393 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 394 portalfs, smbfs, xfs. 395 39620121016: 397 The interface cloning API and ABI has changed. The following 398 modules need to be recompiled together with kernel: 399 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 400 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 401 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 402 40320121015: 404 The sdhci driver was split in two parts: sdhci (generic SD Host 405 Controller logic) and sdhci_pci (actual hardware driver). 406 No kernel config modifications are required, but if you 407 load sdhc as a module you must switch to sdhci_pci instead. 408 40920121014: 410 Import the FUSE kernel and userland support into base system. 411 41220121013: 413 The GNU sort(1) program has been removed since the BSD-licensed 414 sort(1) has been the default for quite some time and no serious 415 problems have been reported. The corresponding WITH_GNU_SORT 416 knob has also gone. 417 41820121006: 419 The pfil(9) API/ABI for AF_INET family has been changed. Packet 420 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 421 with new kernel. 422 42320121001: 424 The net80211(4) ABI has been changed to allow for improved driver 425 PS-POLL and power-save support. All wireless drivers need to be 426 recompiled to work with the new kernel. 427 42820120913: 429 The random(4) support for the VIA hardware random number 430 generator (`PADLOCK') is no longer enabled unconditionally. 431 Add the padlock_rng device in the custom kernel config if 432 needed. The GENERIC kernels on i386 and amd64 do include the 433 device, so the change only affects the custom kernel 434 configurations. 435 43620120908: 437 The pf(4) packet filter ABI has been changed. pfctl(8) and 438 snmp_pf module need to be recompiled to work with new kernel. 439 44020120828: 441 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 442 to -HEAD. Pools that have empty_bpobj in active state can not be 443 imported read-write with ZFS implementations that do not support 444 this feature. For more information read the zpool-features(5) 445 manual page. 446 44720120727: 448 The sparc64 ZFS loader has been changed to no longer try to auto- 449 detect ZFS providers based on diskN aliases but now requires these 450 to be explicitly listed in the OFW boot-device environment variable. 451 45220120712: 453 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 454 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 455 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 456 45720120712: 458 The following sysctls and tunables have been renamed for consistency 459 with other variables: 460 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 461 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 462 46320120628: 464 The sort utility has been replaced with BSD sort. For now, GNU sort 465 is also available as "gnusort" or the default can be set back to 466 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 467 installed as "bsdsort". 468 46920120611: 470 A new version of ZFS (pool version 5000) has been merged to -HEAD. 471 Starting with this version the old system of ZFS pool versioning 472 is superseded by "feature flags". This concept enables forward 473 compatibility against certain future changes in functionality of ZFS 474 pools. The first read-only compatible "feature flag" for ZFS pools 475 is named "com.delphix:async_destroy". For more information 476 read the new zpool-features(5) manual page. 477 Please refer to the "ZFS notes" section of this file for information 478 on upgrading boot ZFS pools. 479 48020120417: 481 The malloc(3) implementation embedded in libc now uses sources imported 482 as contrib/jemalloc. The most disruptive API change is to 483 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 484 delete it prior to installworld, and optionally re-create it using the 485 new format after rebooting. See malloc.conf(5) for details 486 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 487 NAMESPACE section). 488 48920120328: 490 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 491 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 492 now spelled mips. This is to aid compatibility with third-party 493 software that expects this naming scheme in uname(3). Little-endian 494 settings are unchanged. If you are updating a big-endian mips64 machine 495 from before this change, you may need to set MACHINE_ARCH=mips64 in 496 your environment before the new build system will recognize your machine. 497 49820120306: 499 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 500 platforms. 501 50220120229: 503 Now unix domain sockets behave "as expected" on nullfs(5). Previously 504 nullfs(5) did not pass through all behaviours to the underlying layer, 505 as a result if we bound to a socket on the lower layer we could connect 506 only to the lower path; if we bound to the upper layer we could connect 507 only to the upper path. The new behavior is one can connect to both the 508 lower and the upper paths regardless what layer path one binds to. 509 51020120211: 511 The getifaddrs upgrade path broken with 20111215 has been restored. 512 If you have upgraded in between 20111215 and 20120209 you need to 513 recompile libc again with your kernel. You still need to recompile 514 world to be able to configure CARP but this restriction already 515 comes from 20111215. 516 51720120114: 518 The set_rcvar() function has been removed from /etc/rc.subr. All 519 base and ports rc.d scripts have been updated, so if you have a 520 port installed with a script in /usr/local/etc/rc.d you can either 521 hand-edit the rcvar= line, or reinstall the port. 522 523 An easy way to handle the mass-update of /etc/rc.d: 524 rm /etc/rc.d/* && mergemaster -i 525 52620120109: 527 panic(9) now stops other CPUs in the SMP systems, disables interrupts 528 on the current CPU and prevents other threads from running. 529 This behavior can be reverted using the kern.stop_scheduler_on_panic 530 tunable/sysctl. 531 The new behavior can be incompatible with kern.sync_on_panic. 532 53320111215: 534 The carp(4) facility has been changed significantly. Configuration 535 of the CARP protocol via ifconfig(8) has changed, as well as format 536 of CARP events submitted to devd(8) has changed. See manual pages 537 for more information. The arpbalance feature of carp(4) is currently 538 not supported anymore. 539 540 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 541 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 542 need to be recompiled. 543 54420111122: 545 The acpi_wmi(4) status device /dev/wmistat has been renamed to 546 /dev/wmistat0. 547 54820111108: 549 The option VFS_ALLOW_NONMPSAFE option has been added in order to 550 explicitely support non-MPSAFE filesystems. 551 It is on by default for all supported platform at this present 552 time. 553 55420111101: 555 The broken amd(4) driver has been replaced with esp(4) in the amd64, 556 i386 and pc98 GENERIC kernel configuration files. 557 55820110930: 559 sysinstall has been removed 560 56120110923: 562 The stable/9 branch created in subversion. This corresponds to the 563 RELENG_9 branch in CVS. 564 56520110913: 566 This commit modifies vfs_register() so that it uses a hash 567 calculation to set vfc_typenum, which is enabled by default. 568 The first time a system is booted after this change, the 569 vfc_typenum values will change for all file systems. The 570 main effect of this is a change to the NFS server file handles 571 for file systems that use vfc_typenum in their fsid, such as ZFS. 572 It will, however, prevent vfc_typenum from changing when file 573 systems are loaded in a different order for subsequent reboots. 574 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 575 until you are ready to remount all NFS clients after a reboot. 576 57720110828: 578 Bump the shared library version numbers for libraries that 579 do not use symbol versioning, have changed the ABI compared 580 to stable/8 and which shared library version was not bumped. 581 Done as part of 9.0-RELEASE cycle. 582 58320110815: 584 During the merge of Capsicum features, the fget(9) KPI was modified. 585 This may require the rebuilding of out-of-tree device drivers -- 586 issues have been reported specifically with the nVidia device driver. 587 __FreeBSD_version is bumped to 900041. 588 589 Also, there is a period between 20110811 and 20110814 where the 590 special devices /dev/{stdin,stdout,stderr} did not work correctly. 591 Building world from a kernel during that window may not work. 592 59320110628: 594 The packet filter (pf) code has been updated to OpenBSD 4.5. 595 You need to update userland tools to be in sync with kernel. 596 This update breaks backward compatibility with earlier pfsync(4) 597 versions. Care must be taken when updating redundant firewall setups. 598 59920110608: 600 The following sysctls and tunables are retired on x86 platforms: 601 machdep.hlt_cpus 602 machdep.hlt_logical_cpus 603 The following sysctl is retired: 604 machdep.hyperthreading_allowed 605 The sysctls were supposed to provide a way to dynamically offline and 606 online selected CPUs on x86 platforms, but the implementation has not 607 been reliable especially with SCHED_ULE scheduler. 608 machdep.hyperthreading_allowed tunable is still available to ignore 609 hyperthreading CPUs at OS level. 610 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 611 where X is an APIC ID of a CPU. Be advised, though, that disabling 612 CPUs in non-uniform fashion will result in non-uniform topology and 613 may lead to sub-optimal system performance with SCHED_ULE, which is 614 a default scheduler. 615 61620110607: 617 cpumask_t type is retired and cpuset_t is used in order to describe 618 a mask of CPUs. 619 62020110531: 621 Changes to ifconfig(8) for dynamic address family detection mandate 622 that you are running a kernel of 20110525 or later. Make sure to 623 follow the update procedure to boot a new kernel before installing 624 world. 625 62620110513: 627 Support for sun4v architecture is officially dropped 628 62920110503: 630 Several KPI breaking changes have been committed to the mii(4) layer, 631 the PHY drivers and consequently some Ethernet drivers using mii(4). 632 This means that miibus.ko and the modules of the affected Ethernet 633 drivers need to be recompiled. 634 635 Note to kernel developers: Given that the OUI bit reversion problem 636 was fixed as part of these changes all mii(4) commits related to OUIs, 637 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 638 handling, no longer can be merged verbatim to stable/8 and previous 639 branches. 640 64120110430: 642 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 643 into their kernel configurations along with 'device pci'. 644 64520110427: 646 The default NFS client is now the new NFS client, so fstype "newnfs" 647 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 648 Although mounts via fstype "nfs" will usually work without userland 649 changes, it is recommended that the mount(8) and mount_nfs(8) 650 commands be rebuilt from sources and that a link to mount_nfs called 651 mount_oldnfs be created. The new client is compiled into the 652 kernel with "options NFSCL" and this is needed for diskless root 653 file systems. The GENERIC kernel configs have been changed to use 654 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 655 To use the regular/old client, you can "mount -t oldnfs ...". For 656 a diskless root file system, you must also include a line like: 657 658 vfs.root.mountfrom="oldnfs:" 659 660 in the boot/loader.conf on the root fs on the NFS server to make 661 a diskless root fs use the old client. 662 66320110424: 664 The GENERIC kernels for all architectures now default to the new 665 CAM-based ATA stack. It means that all legacy ATA drivers were 666 removed and replaced by respective CAM drivers. If you are using 667 ATA device names in /etc/fstab or other places, make sure to update 668 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 669 where 'Y's are the sequential numbers starting from zero for each type 670 in order of detection, unless configured otherwise with tunables, 671 see cam(4)). There will be symbolic links created in /dev/ to map 672 old adX devices to the respective adaY. They should provide basic 673 compatibility for file systems mounting in most cases, but they do 674 not support old user-level APIs and do not have respective providers 675 in GEOM. Consider using updated management tools with new device names. 676 677 It is possible to load devices ahci, ata, siis and mvs as modules, 678 but option ATA_CAM should remain in kernel configuration to make ata 679 module work as CAM driver supporting legacy ATA controllers. Device ata 680 still can be used in modular fashion (atacore + ...). Modules atadisk 681 and atapi* are not used and won't affect operation in ATA_CAM mode. 682 Note that to use CAM-based ATA kernel should include CAM devices 683 scbus, pass, da (or explicitly ada), cd and optionally others. All of 684 them are parts of the cam module. 685 686 ataraid(4) functionality is now supported by the RAID GEOM class. 687 To use it you can load geom_raid kernel module and use graid(8) tool 688 for management. Instead of /dev/arX device names, use /dev/raid/rX. 689 690 No kernel config options or code have been removed, so if a problem 691 arises, please report it and optionally revert to the old ATA stack. 692 In order to do it you can remove from the kernel config: 693 options ATA_CAM 694 device ahci 695 device mvs 696 device siis 697 , and instead add back: 698 device atadisk # ATA disk drives 699 device ataraid # ATA RAID drives 700 device atapicd # ATAPI CDROM drives 701 device atapifd # ATAPI floppy drives 702 device atapist # ATAPI tape drives 703 70420110423: 705 The default NFS server has been changed to the new server, which 706 was referred to as the experimental server. If you need to switch 707 back to the old NFS server, you must now put the "-o" option on 708 both the mountd and nfsd commands. This can be done using the 709 mountd_flags and nfs_server_flags rc.conf variables until an 710 update to the rc scripts is committed, which is coming soon. 711 71220110418: 713 The GNU Objective-C runtime library (libobjc), and other Objective-C 714 related components have been removed from the base system. If you 715 require an Objective-C library, please use one of the available ports. 716 71720110331: 718 ath(4) has been split into bus- and device- modules. if_ath contains 719 the HAL, the TX rate control and the network device code. if_ath_pci 720 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 721 contains the AHB glue. Users need to load both if_ath_pci and if_ath 722 in order to use ath on everything else. 723 724 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 725 need to load if_ath and if_ath_pci for ath(4) operation. 726 72720110314: 728 As part of the replacement of sysinstall, the process of building 729 release media has changed significantly. For details, please re-read 730 release(7), which has been updated to reflect the new build process. 731 73220110218: 733 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 734 is the last available version under GPLv2. It brings a number of new 735 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 736 4.1 and SSE 4.2), better support for powerpc64, a number of new 737 directives, and lots of other small improvements. See the ChangeLog 738 file in contrib/binutils for the full details. 739 74020110218: 741 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 742 compliant, and will now use half of hash for authentication. 743 This will break interoperability with all stacks (including all 744 actual FreeBSD versions) who implement 745 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 746 authentication). 747 The only workaround with such peers is to use another HMAC 748 algorithm for IPsec ("phase 2") authentication. 749 75020110207: 751 Remove the uio_yield prototype and symbol. This function has 752 been misnamed since it was introduced and should not be 753 globally exposed with this name. The equivalent functionality 754 is now available using kern_yield(curthread->td_user_pri). 755 The function remains undocumented. 756 75720110112: 758 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 759 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 760 for scalar sysctls is defined but disabled. Code that needs 761 UQUAD to pass the type checking that must compile on older 762 systems where the define is not present can check against 763 __FreeBSD_version >= 900030. 764 765 The system dialog(1) has been replaced with a new version previously 766 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 767 with the previous version, but the libdialog associated with it has 768 a largely incompatible API. As such, the original version of libdialog 769 will be kept temporarily as libodialog, until its base system consumers 770 are replaced or updated. Bump __FreeBSD_version to 900030. 771 77220110103: 773 If you are trying to run make universe on a -stable system, and you get 774 the following warning: 775 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 776 unknown. config(8) likely too old." 777 or something similar to it, then you must upgrade your -stable system 778 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 779 stable/8) or build the config from the latest stable/8 branch and 780 install it on your system. 781 782 Prior to this date, building a current universe on 8-stable system from 783 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 784 error in the first kernel build phase. A new config on those old 785 systems will fix that problem for older versions of -current. 786 78720101228: 788 The TCP stack has been modified to allow Khelp modules to interact with 789 it via helper hook points and store per-connection data in the TCP 790 control block. Bump __FreeBSD_version to 900029. User space tools that 791 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 792 be recompiled. 793 79420101114: 795 Generic IEEE 802.3 annex 31B full duplex flow control support has been 796 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 797 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 798 to take advantage of it instead of using custom implementations. This 799 means that these drivers now no longer unconditionally advertise 800 support for flow control but only do so if flow control is a selected 801 media option. This was implemented in the generic support that way in 802 order to allow flow control to be switched on and off via ifconfig(8) 803 with the PHY specific default to typically off in order to protect 804 from unwanted effects. Consequently, if you used flow control with 805 one of the above mentioned drivers you now need to explicitly enable 806 it, for example via: 807 ifconfig bge0 media auto mediaopt flowcontrol 808 809 Along with the above mentioned changes generic support for setting 810 1000baseT master mode also has been added and brgphy(4), ciphy(4), 811 e1000phy(4) as well as ip1000phy(4) have been converted to take 812 advantage of it. This means that these drivers now no longer take the 813 link0 parameter for selecting master mode but the master media option 814 has to be used instead, for example like in the following: 815 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 816 817 Selection of master mode now is also available with all other PHY 818 drivers supporting 1000baseT. 819 82020101111: 821 The TCP stack has received a significant update to add support for 822 modularised congestion control and generally improve the clarity of 823 congestion control decisions. Bump __FreeBSD_version to 900025. User 824 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 825 sockstat) need to be recompiled. 826 82720101002: 828 The man(1) utility has been replaced by a new version that no longer 829 uses /etc/manpath.config. Please consult man.conf(5) for how to 830 migrate local entries to the new format. 831 83220100928: 833 The copyright strings printed by login(1) and sshd(8) at the time of a 834 new connection have been removed to follow other operating systems and 835 upstream sshd. 836 83720100915: 838 A workaround for a fixed ld bug has been removed in kernel code, 839 so make sure that your system ld is built from sources after 840 revision 210245 from 2010-07-19 (r211583 if building head kernel 841 on stable/8, r211584 for stable/7; both from 2010-08-21). 842 A symptom of incorrect ld version is different addresses for 843 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 844 84520100913: 846 The $ipv6_prefer variable in rc.conf(5) has been split into 847 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 848 849 The $ip6addrctl_policy is a variable to choose a pre-defined 850 address selection policy set by ip6addrctl(8). A value 851 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 852 default is "AUTO". 853 854 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 855 flag (see an entry of 20090926) is set on an interface with no 856 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 857 security reason. If you want IPv6 link-local address on all 858 interfaces by default, set this to "YES". 859 860 The old ipv6_prefer="YES" is equivalent to 861 ipv6_activate_all_interfaces="YES" and 862 ip6addrctl_policy="ipv6_prefer". 863 86420100913: 865 DTrace has grown support for userland tracing. Due to this, DTrace is 866 now i386 and amd64 only. 867 dtruss(1) is now installed by default on those systems and a new 868 kernel module is needed for userland tracing: fasttrap. 869 No changes to your kernel config file are necessary to enable 870 userland tracing, but you might consider adding 'STRIP=' and 871 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 872 to have informative userland stack traces in DTrace (ustack). 873 87420100725: 875 The acpi_aiboost(4) driver has been removed in favor of the new 876 aibs(4) driver. You should update your kernel configuration file. 877 87820100722: 879 BSD grep has been imported to the base system and it is built by 880 default. It is completely BSD licensed, highly GNU-compatible, uses 881 less memory than its GNU counterpart and has a small codebase. 882 However, it is slower than its GNU counterpart, which is mostly 883 noticeable for larger searches, for smaller ones it is measurable 884 but not significant. The reason is complex, the most important factor 885 is that we lack a modern and efficient regex library and GNU 886 overcomes this by optimizing the searches internally. Future work 887 on improving the regex performance is planned, for the meantime, 888 users that need better performance, can build GNU grep instead by 889 setting the WITH_GNU_GREP knob. 890 89120100713: 892 Due to the import of powerpc64 support, all existing powerpc kernel 893 configuration files must be updated with a machine directive like this: 894 machine powerpc powerpc 895 896 In addition, an updated config(8) is required to build powerpc kernels 897 after this change. 898 89920100713: 900 A new version of ZFS (version 15) has been merged to -HEAD. 901 This version uses a python library for the following subcommands: 902 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 903 For full functionality of these commands the following port must 904 be installed: sysutils/py-zfs 905 90620100429: 907 'vm_page's are now hashed by physical address to an array of mutexes. 908 Currently this is only used to serialize access to hold_count. Over 909 time the page queue mutex will be peeled away. This changes the size 910 of pmap on every architecture. And requires all callers of vm_page_hold 911 and vm_page_unhold to be updated. 912 91320100402: 914 WITH_CTF can now be specified in src.conf (not recommended, there 915 are some problems with static executables), make.conf (would also 916 affect ports which do not use GNU make and do not override the 917 compile targets) or in the kernel config (via "makeoptions 918 WITH_CTF=yes"). 919 When WITH_CTF was specified there before this was silently ignored, 920 so make sure that WITH_CTF is not used in places which could lead 921 to unwanted behavior. 922 92320100311: 924 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 925 to allow 32-bit compatibility on non-x86 platforms. All kernel 926 configurations on amd64 and ia64 platforms using these options must 927 be modified accordingly. 928 92920100113: 930 The utmp user accounting database has been replaced with utmpx, 931 the user accounting interface standardized by POSIX. 932 Unfortunately the semantics of utmp and utmpx don't match, 933 making it practically impossible to support both interfaces. 934 The user accounting database is used by tools like finger(1), 935 last(1), talk(1), w(1) and ac(8). 936 937 All applications in the base system use utmpx. This means only 938 local binaries (e.g. from the ports tree) may still use these 939 utmp database files. These applications must be rebuilt to make 940 use of utmpx. 941 942 After the system has been upgraded, it is safe to remove the old 943 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 944 assuming their contents is of no importance anymore. Old wtmp 945 databases can only be used by last(1) and ac(8) after they have 946 been converted to the new format using wtmpcvt(1). 947 94820100108: 949 Introduce the kernel thread "deadlock resolver" (which can be enabled 950 via the DEADLKRES option, see NOTES for more details) and the 951 sleepq_type() function for sleepqueues. 952 95320091202: 954 The rc.firewall and rc.firewall6 were unified, and 955 rc.firewall6 and rc.d/ip6fw were removed. 956 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 957 variables are obsoleted. Instead, the following new rc 958 variables are added to rc.d/ipfw: 959 960 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 961 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 962 firewall_simple_onet_ipv6, firewall_trusted_ipv6 963 964 The meanings correspond to the relevant IPv4 variables. 965 96620091125: 967 8.0-RELEASE. 968 96920091113: 970 The default terminal emulation for syscons(4) has been changed 971 from cons25 to xterm on all platforms except pc98. This means 972 that the /etc/ttys file needs to be updated to ensure correct 973 operation of applications on the console. 974 975 The terminal emulation style can be toggled per window by using 976 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 977 options can be used to change the compile-time default back to 978 cons25. 979 980 To prevent graphical artifacts, make sure the TERM environment 981 variable is set to match the terminal emulation that is being 982 performed by syscons(4). 983 98420091109: 985 The layout of the structure ieee80211req_scan_result has changed. 986 Applications that require wireless scan results (e.g. ifconfig(8)) 987 from net80211 need to be recompiled. 988 989 Applications such as wpa_supplicant(8) may require a full world 990 build without using NO_CLEAN in order to get synchronized with the 991 new structure. 992 99320091025: 994 The iwn(4) driver has been updated to support the 5000 and 5150 series. 995 There's one kernel module for each firmware. Adding "device iwnfw" 996 to the kernel configuration file means including all three firmware 997 images inside the kernel. If you want to include just the one for 998 your wireless card, use the devices iwn4965fw, iwn5000fw or 999 iwn5150fw. 1000 100120090926: 1002 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1003 into rc.d/netif. The changes are the following: 1004 1005 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1006 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1007 Note that both variables need the "inet6" keyword at the head. 1008 1009 Do not set $ipv6_network_interfaces manually if you do not 1010 understand what you are doing. It is not needed in most cases. 1011 1012 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1013 they are obsolete. 1014 1015 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1016 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1017 1018 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1019 all configured interfaces have "inet6 accept_rtadv" in the 1020 $ifconfig_IF_ipv6. These are for backward compatibility. 1021 1022 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1023 functionality of interfaces with no corresponding 1024 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1025 and the default address selection policy of ip6addrctl(8) 1026 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1027 Note that if you want to configure IPv6 functionality on the 1028 disabled interfaces after boot, first you need to clear the flag by 1029 using ifconfig(8) like: 1030 1031 ifconfig em0 inet6 -ifdisabled 1032 1033 If YES, the default address selection policy is set as 1034 IPv6-preferred. 1035 1036 The default value of $ipv6_prefer is NO. 1037 1038 4. If your system need to receive Router Advertisement messages, 1039 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1040 scripts automatically invoke rtsol(8) when the interface becomes 1041 UP. The Router Advertisement messages are used for SLAAC 1042 (State-Less Address AutoConfiguration). 1043 104420090922: 1045 802.11s D3.03 support was committed. This is incompatible with the 1046 previous code, which was based on D3.0. 1047 104820090912: 1049 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1050 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1051 control whether accepting Router Advertisement messages or not. 1052 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1053 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1054 The ifconfig(8) utility now supports these flags. 1055 105620090910: 1057 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1058 mount(8) and -a option for df(1) to see them. 1059 106020090825: 1061 The old tunable hw.bus.devctl_disable has been superseded by 1062 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1063 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1064 is 1000. 1065 106620090813: 1067 Remove the option STOP_NMI. The default action is now to use NMI only 1068 for KDB via the newly introduced function stop_cpus_hard() and 1069 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1070 107120090803: 1072 The stable/8 branch created in subversion. This corresponds to the 1073 RELENG_8 branch in CVS. 1074 107520090719: 1076 Bump the shared library version numbers for all libraries that do not 1077 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1078 __FreeBSD_version to 800105. 1079 108020090714: 1081 Due to changes in the implementation of virtual network stack support, 1082 all network-related kernel modules must be recompiled. As this change 1083 breaks the ABI, bump __FreeBSD_version to 800104. 1084 108520090713: 1086 The TOE interface to the TCP syncache has been modified to remove 1087 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1088 The cxgb driver is the only TOE consumer affected by this change, and 1089 needs to be recompiled along with the kernel. As this change breaks 1090 the ABI, bump __FreeBSD_version to 800103. 1091 109220090712: 1093 Padding has been added to struct tcpcb, sackhint and tcpstat in 1094 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1095 maintaining the ABI. However, this change breaks the ABI, so bump 1096 __FreeBSD_version to 800102. User space tools that rely on the size of 1097 any of these structs (e.g. sockstat) need to be recompiled. 1098 109920090630: 1100 The NFS_LEGACYRPC option has been removed along with the old kernel 1101 RPC implementation that this option selected. Kernel configurations 1102 may need to be adjusted. 1103 110420090629: 1105 The network interface device nodes at /dev/net/<interface> have been 1106 removed. All ioctl operations can be performed the normal way using 1107 routing sockets. The kqueue functionality can generally be replaced 1108 with routing sockets. 1109 111020090628: 1111 The documentation from the FreeBSD Documentation Project (Handbook, 1112 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1113 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1114 111520090624: 1116 The ABI of various structures related to the SYSV IPC API have been 1117 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1118 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1119 800100. 1120 112120090622: 1122 Layout of struct vnet has changed as routing related variables were 1123 moved to their own Vimage module. Modules need to be recompiled. Bump 1124 __FreeBSD_version to 800099. 1125 112620090619: 1127 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1128 respectively. As long as no more than 16 groups per process are used, 1129 no changes should be visible. When more than 16 groups are used, old 1130 binaries may fail if they call getgroups() or getgrouplist() with 1131 statically sized storage. Recompiling will work around this, but 1132 applications should be modified to use dynamically allocated storage 1133 for group arrays as POSIX.1-2008 does not cap an implementation's 1134 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1135 1136 NFS and portalfs mounts may also be affected as the list of groups is 1137 truncated to 16. Users of NFS who use more than 16 groups, should 1138 take care that negative group permissions are not used on the exported 1139 file systems as they will not be reliable unless a GSSAPI based 1140 authentication method is used. 1141 114220090616: 1143 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1144 option compiles in the support for adaptive spinning for lockmgrs 1145 which want to enable it. The lockinit() function now accepts the flag 1146 LK_ADAPTIVE in order to make the lock object subject to adaptive 1147 spinning when both held in write and read mode. 1148 114920090613: 1150 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1151 changed. User applications that use this ioctl need to be rebuilt. 1152 115320090611: 1154 The layout of struct thread has changed. Kernel and modules need to 1155 be rebuilt. 1156 115720090608: 1158 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1159 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1160 116120090602: 1162 window(1) has been removed from the base system. It can now be 1163 installed from ports. The port is called misc/window. 1164 116520090601: 1166 The way we are storing and accessing `routing table' entries has 1167 changed. Programs reading the FIB, like netstat, need to be 1168 re-compiled. 1169 117020090601: 1171 A new netisr implementation has been added for FreeBSD 8. Network 1172 file system modules, such as igmp, ipdivert, and others, should be 1173 rebuilt. 1174 Bump __FreeBSD_version to 800096. 1175 117620090530: 1177 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1178 more valid. 1179 118020090530: 1181 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1182 Bump __FreeBSD_version to 800094. 1183 118420090529: 1185 Add mnt_xflag field to 'struct mount'. File system modules need to be 1186 rebuilt. 1187 Bump __FreeBSD_version to 800093. 1188 118920090528: 1190 The compiling option ADAPTIVE_SX has been retired while it has been 1191 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1192 The KPI for sx_init_flags() changes as accepting flags: 1193 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1194 been introduced in order to handle the reversed logic. 1195 Bump __FreeBSD_version to 800092. 1196 119720090527: 1198 Add support for hierarchical jails. Remove global securelevel. 1199 Bump __FreeBSD_version to 800091. 1200 120120090523: 1202 The layout of struct vnet_net has changed, therefore modules 1203 need to be rebuilt. 1204 Bump __FreeBSD_version to 800090. 1205 120620090523: 1207 The newly imported zic(8) produces a new format in the output. Please 1208 run tzsetup(8) to install the newly created data to /etc/localtime. 1209 121020090520: 1211 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1212 hw.usb.* and is now consistent again with previous releases. 1213 121420090520: 1215 802.11 monitor mode support was revised and driver api's were changed. 1216 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1217 of DLT_IEEE802_11. No user-visible data structures were changed but 1218 applications that use DLT_IEEE802_11 may require changes. 1219 Bump __FreeBSD_version to 800088. 1220 122120090430: 1222 The layout of the following structs has changed: sysctl_oid, 1223 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1224 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1225 panics may be experienced. World rebuild is required for 1226 correctly checking networking state from userland. 1227 Bump __FreeBSD_version to 800085. 1228 122920090429: 1230 MLDv2 and Source-Specific Multicast (SSM) have been merged 1231 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1232 The implementation of SSM within FreeBSD's IPv6 stack closely 1233 follows the IPv4 implementation. 1234 1235 For kernel developers: 1236 1237 * The most important changes are that the ip6_output() and 1238 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1239 and this lock has been downgraded to a non-recursive mutex. 1240 1241 * As with the changes to the IPv4 stack to support SSM, filtering 1242 of inbound multicast traffic must now be performed by transport 1243 protocols within the IPv6 stack. This does not apply to TCP and 1244 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1245 1246 * The KPIs used by IPv6 multicast are similar to those used by 1247 the IPv4 stack, with the following differences: 1248 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1249 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1250 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1251 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1252 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1253 for MLDv1 have an additional 'timer' argument which is used to 1254 jitter the initial membership report for the solicited-node 1255 multicast membership on-link. 1256 * This is not strictly needed for MLDv2, which already jitters 1257 its report transmissions. However, the 'timer' argument is 1258 preserved in case MLDv1 is active on the interface. 1259 1260 * The KAME linked-list based IPv6 membership implementation has 1261 been refactored to use a vector similar to that used by the IPv4 1262 stack. 1263 Code which maintains a list of its own multicast memberships 1264 internally, e.g. carp, has been updated to reflect the new 1265 semantics. 1266 1267 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1268 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1269 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1270 implementation constraint which needs to be addressed in HEAD. 1271 1272 For application developers: 1273 1274 * The changes are broadly similar to those made for the IPv4 1275 stack. 1276 1277 * The use of IPv4 and IPv6 multicast socket options on the same 1278 socket, using mapped addresses, HAS NOT been tested or supported. 1279 1280 * There are a number of issues with the implementation of various 1281 IPv6 multicast APIs which need to be resolved in the API surface 1282 before the implementation is fully compatible with KAME userland 1283 use, and these are mostly to do with interface index treatment. 1284 1285 * The literature available discusses the use of either the delta / ASM 1286 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1287 using setsourcefilter(3)/getsourcefilter(3). For more information 1288 please refer to RFC 3768, 'Socket Interface Extensions for 1289 Multicast Source Filters'. 1290 1291 * Applications which use the published RFC 3678 APIs should be fine. 1292 1293 For systems administrators: 1294 1295 * The mtest(8) utility has been refactored to support IPv6, in 1296 addition to IPv4. Interface addresses are no longer accepted 1297 as arguments, their names must be used instead. The utility 1298 will map the interface name to its first IPv4 address as 1299 returned by getifaddrs(3). 1300 1301 * The ifmcstat(8) utility has also been updated to print the MLDv2 1302 endpoint state and source filter lists via sysctl(3). 1303 1304 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1305 loopback of IPv6 multicast datagrams by default; it defaults to 1 1306 to preserve the existing behaviour. Disabling multicast loopback is 1307 recommended for optimal system performance. 1308 1309 * The IPv6 MROUTING code has been changed to examine this sysctl 1310 instead of attempting to perform a group lookup before looping 1311 back forwarded datagrams. 1312 1313 Bump __FreeBSD_version to 800084. 1314 131520090422: 1316 Implement low-level Bluetooth HCI API. 1317 Bump __FreeBSD_version to 800083. 1318 131920090419: 1320 The layout of struct malloc_type, used by modules to register new 1321 memory allocation types, has changed. Most modules will need to 1322 be rebuilt or panics may be experienced. 1323 Bump __FreeBSD_version to 800081. 1324 132520090415: 1326 Anticipate overflowing inp_flags - add inp_flags2. 1327 This changes most offsets in inpcb, so checking v4 connection 1328 state will require a world rebuild. 1329 Bump __FreeBSD_version to 800080. 1330 133120090415: 1332 Add an llentry to struct route and struct route_in6. Modules 1333 embedding a struct route will need to be recompiled. 1334 Bump __FreeBSD_version to 800079. 1335 133620090414: 1337 The size of rt_metrics_lite and by extension rtentry has changed. 1338 Networking administration apps will need to be recompiled. 1339 The route command now supports show as an alias for get, weighting 1340 of routes, sticky and nostick flags to alter the behavior of stateful 1341 load balancing. 1342 Bump __FreeBSD_version to 800078. 1343 134420090408: 1345 Do not use Giant for kbdmux(4) locking. This is wrong and 1346 apparently causing more problems than it solves. This will 1347 re-open the issue where interrupt handlers may race with 1348 kbdmux(4) in polling mode. Typical symptoms include (but 1349 not limited to) duplicated and/or missing characters when 1350 low level console functions (such as gets) are used while 1351 interrupts are enabled (for example geli password prompt, 1352 mountroot prompt etc.). Disabling kbdmux(4) may help. 1353 135420090407: 1355 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1356 kernel modules referencing any of the above need to be recompiled. 1357 Bump __FreeBSD_version to 800075. 1358 135920090320: 1360 GEOM_PART has become the default partition slicer for storage devices, 1361 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1362 introduces some changes: 1363 1364 MSDOS/EBR: the devices created from MSDOS extended partition entries 1365 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1366 to devices with offset-based names. fstabs may need to be modified. 1367 1368 BSD: the "geometry does not match label" warning is harmless in most 1369 cases but it points to problems in file system misalignment with 1370 disk geometry. The "c" partition is now implicit, covers the whole 1371 top-level drive and cannot be (mis)used by users. 1372 1373 General: Kernel dumps are now not allowed to be written to devices 1374 whose partition types indicate they are meant to be used for file 1375 systems (or, in case of MSDOS partitions, as something else than 1376 the "386BSD" type). 1377 1378 Most of these changes date approximately from 200812. 1379 138020090319: 1381 The uscanner(4) driver has been removed from the kernel. This follows 1382 Linux removing theirs in 2.6 and making libusb the default interface 1383 (supported by sane). 1384 138520090319: 1386 The multicast forwarding code has been cleaned up. netstat(1) 1387 only relies on KVM now for printing bandwidth upcall meters. 1388 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1389 ip6_mroute_mod respectively. The config(5) options for statically 1390 compiling this code remain the same, i.e. 'options MROUTING'. 1391 139220090315: 1393 Support for the IFF_NEEDSGIANT network interface flag has been 1394 removed, which means that non-MPSAFE network device drivers are no 1395 longer supported. In particular, if_ar, if_sr, and network device 1396 drivers from the old (legacy) USB stack can no longer be built or 1397 used. 1398 139920090313: 1400 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1401 a bunch of new language catalog files have also been added. 1402 This means that some common libc messages are now localized and 1403 they depend on the LC_MESSAGES environmental variable. 1404 140520090313: 1406 The k8temp(4) driver has been renamed to amdtemp(4) since 1407 support for Family 10 and Family 11 CPU families was added. 1408 140920090309: 1410 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1411 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1412 1413 For kernel developers, the most important changes are that the 1414 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1415 and this lock has been downgraded to a non-recursive mutex. 1416 1417 Transport protocols (UDP, Raw IP) are now responsible for filtering 1418 inbound multicast traffic according to group membership and source 1419 filters. The imo_multicast_filter() KPI exists for this purpose. 1420 Transports which do not use multicast (SCTP, TCP) already reject 1421 multicast by default. Forwarding and receive performance may improve 1422 as a mutex acquisition is no longer needed in the ip_input() 1423 low-level input path. in_addmulti() and in_delmulti() are shimmed 1424 to new KPIs which exist to support SSM in-kernel. 1425 1426 For application developers, it is recommended that loopback of 1427 multicast datagrams be disabled for best performance, as this 1428 will still cause the lock to be taken for each looped-back 1429 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1430 be tuned to 0 to disable loopback by default; it defaults to 1 1431 to preserve the existing behaviour. 1432 1433 For systems administrators, to obtain best performance with 1434 multicast reception and multiple groups, it is always recommended 1435 that a card with a suitably precise hash filter is used. Hash 1436 collisions will still result in the lock being taken within the 1437 transport protocol input path to check group membership. 1438 1439 If deploying FreeBSD in an environment with IGMP snooping switches, 1440 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1441 enabled; this forces 224.0.0.0/24 group membership to be announced 1442 via IGMP. 1443 1444 The size of 'struct igmpstat' has changed; netstat needs to be 1445 recompiled to reflect this. 1446 Bump __FreeBSD_version to 800070. 1447 144820090309: 1449 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1450 updated to use it. This requires a buildworld/installworld in order to 1451 update the library and dependencies (usbconfig, etc). Its advisable to 1452 rebuild all ports which uses libusb. More specific directions are given 1453 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1454 libusb are no longer required and can be removed. 1455 145620090302: 1457 A workaround is committed to allow the creation of System V shared 1458 memory segment of size > 2 GB on the 64-bit architectures. 1459 Due to a limitation of the existing ABI, the shm_segsz member 1460 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1461 wrong for large segments. Note that limits must be explicitly 1462 raised to allow such segments to be created. 1463 146420090301: 1465 The layout of struct ifnet has changed, requiring a rebuild of all 1466 network device driver modules. 1467 146820090227: 1469 The /dev handling for the new USB stack has changed, a 1470 buildworld/installworld is required for libusb20. 1471 147220090223: 1473 The new USB2 stack has now been permanently moved in and all kernel and 1474 module names reverted to their previous values (eg, usb, ehci, ohci, 1475 ums, ...). The old usb stack can be compiled in by prefixing the name 1476 with the letter 'o', the old usb modules have been removed. 1477 Updating entry 20090216 for xorg and 20090215 for libmap may still 1478 apply. 1479 148020090217: 1481 The rc.conf(5) option if_up_delay has been renamed to 1482 defaultroute_delay to better reflect its purpose. If you have 1483 customized this setting in /etc/rc.conf you need to update it to 1484 use the new name. 1485 148620090216: 1487 xorg 7.4 wants to configure its input devices via hald which does not 1488 yet work with USB2. If the keyboard/mouse does not work in xorg then 1489 add 1490 Option "AllowEmptyInput" "off" 1491 to your ServerLayout section. This will cause X to use the configured 1492 kbd and mouse sections from your xorg.conf. 1493 149420090215: 1495 The GENERIC kernels for all architectures now default to the new USB2 1496 stack. No kernel config options or code have been removed so if a 1497 problem arises please report it and optionally revert to the old USB 1498 stack. If you are loading USB kernel modules or have a custom kernel 1499 that includes GENERIC then ensure that usb names are also changed over, 1500 eg uftdi -> usb2_serial_ftdi. 1501 1502 Older programs linked against the ports libusb 0.1 need to be 1503 redirected to the new stack's libusb20. /etc/libmap.conf can 1504 be used for this: 1505 # Map old usb library to new one for usb2 stack 1506 libusb-0.1.so.8 libusb20.so.1 1507 150820090209: 1509 All USB ethernet devices now attach as interfaces under the name ueN 1510 (eg. ue0). This is to provide a predictable name as vendors often 1511 change usb chipsets in a product without notice. 1512 151320090203: 1514 The ichsmb(4) driver has been changed to require SMBus slave 1515 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1516 All of the other SMBus controller drivers require left-justified 1517 slave addresses, so this change makes all the drivers provide the 1518 same interface. 1519 152020090201: 1521 INET6 statistics (struct ip6stat) was updated. 1522 netstat(1) needs to be recompiled. 1523 152420090119: 1525 NTFS has been removed from GENERIC kernel on amd64 to match 1526 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1527 will load ntfs.ko module automatically when NTFS support is 1528 actually needed, unless ntfs.ko is not installed or security 1529 level prohibits loading kernel modules. If either is the case, 1530 "options NTFS" has to be added into kernel config. 1531 153220090115: 1533 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1534 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1535 800061. User space tools that rely on the size of struct tcpcb in 1536 tcp_var.h (e.g. sockstat) need to be recompiled. 1537 153820081225: 1539 ng_tty(4) module updated to match the new TTY subsystem. 1540 Due to API change, user-level applications must be updated. 1541 New API support added to mpd5 CVS and expected to be present 1542 in next mpd5.3 release. 1543 154420081219: 1545 With __FreeBSD_version 800060 the makefs tool is part of 1546 the base system (it was a port). 1547 154820081216: 1549 The afdata and ifnet locks have been changed from mutexes to 1550 rwlocks, network modules will need to be re-compiled. 1551 155220081214: 1553 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1554 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1555 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1556 architecture and 40 bytes on 64-bit architecture. The userland 1557 applications "arp" and "ndp" have been updated accordingly. 1558 The output from "netstat -r" shows only routing entries and 1559 none of the L2 information. 1560 156120081130: 1562 __FreeBSD_version 800057 marks the switchover from the 1563 binary ath hal to source code. Users must add the line: 1564 1565 options AH_SUPPORT_AR5416 1566 1567 to their kernel config files when specifying: 1568 1569 device ath_hal 1570 1571 The ath_hal module no longer exists; the code is now compiled 1572 together with the driver in the ath module. It is now 1573 possible to tailor chip support (i.e. reduce the set of chips 1574 and thereby the code size); consult ath_hal(4) for details. 1575 157620081121: 1577 __FreeBSD_version 800054 adds memory barriers to 1578 <machine/atomic.h>, new interfaces to ifnet to facilitate 1579 multiple hardware transmit queues for cards that support 1580 them, and a lock-less ring-buffer implementation to 1581 enable drivers to more efficiently manage queueing of 1582 packets. 1583 158420081117: 1585 A new version of ZFS (version 13) has been merged to -HEAD. 1586 This version has zpool attribute "listsnapshots" off by 1587 default, which means "zfs list" does not show snapshots, 1588 and is the same as Solaris behavior. 1589 159020081028: 1591 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1592 159320081009: 1594 The uhci, ohci, ehci and slhci USB Host controller drivers have 1595 been put into separate modules. If you load the usb module 1596 separately through loader.conf you will need to load the 1597 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1598 controller add the following to loader.conf: 1599 1600 uhci_load="YES" 1601 ehci_load="YES" 1602 160320081009: 1604 The ABI used by the PMC toolset has changed. Please keep 1605 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1606 sync. 1607 160820081009: 1609 atapci kernel module now includes only generic PCI ATA 1610 driver. AHCI driver moved to ataahci kernel module. 1611 All vendor-specific code moved into separate kernel modules: 1612 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1613 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1614 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1615 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1616 161720080820: 1618 The TTY subsystem of the kernel has been replaced by a new 1619 implementation, which provides better scalability and an 1620 improved driver model. Most common drivers have been migrated to 1621 the new TTY subsystem, while others have not. The following 1622 drivers have not yet been ported to the new TTY layer: 1623 1624 PCI/ISA: 1625 cy, digi, rc, rp, sio 1626 1627 USB: 1628 ubser, ucycom 1629 1630 Line disciplines: 1631 ng_h4, ng_tty, ppp, sl, snp 1632 1633 Adding these drivers to your kernel configuration file shall 1634 cause compilation to fail. 1635 163620080818: 1637 ntpd has been upgraded to 4.2.4p5. 1638 163920080801: 1640 OpenSSH has been upgraded to 5.1p1. 1641 1642 For many years, FreeBSD's version of OpenSSH preferred DSA 1643 over RSA for host and user authentication keys. With this 1644 upgrade, we've switched to the vendor's default of RSA over 1645 DSA. This may cause upgraded clients to warn about unknown 1646 host keys even for previously known hosts. Users should 1647 follow the usual procedure for verifying host keys before 1648 accepting the RSA key. 1649 1650 This can be circumvented by setting the "HostKeyAlgorithms" 1651 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1652 command line. 1653 1654 Please note that the sequence of keys offered for 1655 authentication has been changed as well. You may want to 1656 specify IdentityFile in a different order to revert this 1657 behavior. 1658 165920080713: 1660 The sio(4) driver has been removed from the i386 and amd64 1661 kernel configuration files. This means uart(4) is now the 1662 default serial port driver on those platforms as well. 1663 1664 To prevent collisions with the sio(4) driver, the uart(4) driver 1665 uses different names for its device nodes. This means the 1666 onboard serial port will now most likely be called "ttyu0" 1667 instead of "ttyd0". You may need to reconfigure applications to 1668 use the new device names. 1669 1670 When using the serial port as a boot console, be sure to update 1671 /boot/device.hints and /etc/ttys before booting the new kernel. 1672 If you forget to do so, you can still manually specify the hints 1673 at the loader prompt: 1674 1675 set hint.uart.0.at="isa" 1676 set hint.uart.0.port="0x3F8" 1677 set hint.uart.0.flags="0x10" 1678 set hint.uart.0.irq="4" 1679 boot -s 1680 168120080609: 1682 The gpt(8) utility has been removed. Use gpart(8) to partition 1683 disks instead. 1684 168520080603: 1686 The version that Linuxulator emulates was changed from 2.4.2 1687 to 2.6.16. If you experience any problems with Linux binaries 1688 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1689 if it fixes the problem contact emulation mailing list. 1690 169120080525: 1692 ISDN4BSD (I4B) was removed from the src tree. You may need to 1693 update a your kernel configuration and remove relevant entries. 1694 169520080509: 1696 I have checked in code to support multiple routing tables. 1697 See the man pages setfib(1) and setfib(2). 1698 This is a hopefully backwards compatible version, 1699 but to make use of it you need to compile your kernel 1700 with options ROUTETABLES=2 (or more up to 16). 1701 170220080420: 1703 The 802.11 wireless support was redone to enable multi-bss 1704 operation on devices that are capable. The underlying device 1705 is no longer used directly but instead wlanX devices are 1706 cloned with ifconfig. This requires changes to rc.conf files. 1707 For example, change: 1708 ifconfig_ath0="WPA DHCP" 1709 to 1710 wlans_ath0=wlan0 1711 ifconfig_wlan0="WPA DHCP" 1712 see rc.conf(5) for more details. In addition, mergemaster of 1713 /etc/rc.d is highly recommended. Simultaneous update of userland 1714 and kernel wouldn't hurt either. 1715 1716 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1717 modules were merged into the base wlan module. All references 1718 to these modules (e.g. in kernel config files) must be removed. 1719 172020080408: 1721 psm(4) has gained write(2) support in native operation level. 1722 Arbitrary commands can be written to /dev/psm%d and status can 1723 be read back from it. Therefore, an application is responsible 1724 for status validation and error recovery. It is a no-op in 1725 other operation levels. 1726 172720080312: 1728 Support for KSE threading has been removed from the kernel. To 1729 run legacy applications linked against KSE libmap.conf may 1730 be used. The following libmap.conf may be used to ensure 1731 compatibility with any prior release: 1732 1733 libpthread.so.1 libthr.so.1 1734 libpthread.so.2 libthr.so.2 1735 libkse.so.3 libthr.so.3 1736 173720080301: 1738 The layout of struct vmspace has changed. This affects libkvm 1739 and any executables that link against libkvm and use the 1740 kvm_getprocs() function. In particular, but not exclusively, 1741 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1742 The effects are minimal, but it's advisable to upgrade world 1743 nonetheless. 1744 174520080229: 1746 The latest em driver no longer has support in it for the 1747 82575 adapter, this is now moved to the igb driver. The 1748 split was done to make new features that are incompatible 1749 with older hardware easier to do. 1750 175120080220: 1752 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1753 likewise the kernel option is now GEOM_LINUX_LVM. 1754 175520080211: 1756 The default NFS mount mode has changed from UDP to TCP for 1757 increased reliability. If you rely on (insecurely) NFS 1758 mounting across a firewall you may need to update your 1759 firewall rules. 1760 176120080208: 1762 Belatedly note the addition of m_collapse for compacting 1763 mbuf chains. 1764 176520080126: 1766 The fts(3) structures have been changed to use adequate 1767 integer types for their members and so to be able to cope 1768 with huge file trees. The old fts(3) ABI is preserved 1769 through symbol versioning in libc, so third-party binaries 1770 using fts(3) should still work, although they will not take 1771 advantage of the extended types. At the same time, some 1772 third-party software might fail to build after this change 1773 due to unportable assumptions made in its source code about 1774 fts(3) structure members. Such software should be fixed 1775 by its vendor or, in the worst case, in the ports tree. 1776 FreeBSD_version 800015 marks this change for the unlikely 1777 case that a portable fix is impossible. 1778 177920080123: 1780 To upgrade to -current after this date, you must be running 1781 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1782 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1783 178420071128: 1785 The ADAPTIVE_GIANT kernel option has been retired because its 1786 functionality is the default now. 1787 178820071118: 1789 The AT keyboard emulation of sunkbd(4) has been turned on 1790 by default. In order to make the special symbols of the Sun 1791 keyboards driven by sunkbd(4) work under X these now have 1792 to be configured the same way as Sun USB keyboards driven 1793 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1794 1795 Option "XkbLayout" "us" 1796 Option "XkbRules" "xorg" 1797 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1798 179920071024: 1800 It has been decided that it is desirable to provide ABI 1801 backwards compatibility to the FreeBSD 4/5/6 versions of the 1802 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1803 broken with the introduction of PCI domain support (see the 1804 20070930 entry). Unfortunately, this required the ABI of 1805 PCIOCGETCONF to be broken again in order to be able to 1806 provide backwards compatibility to the old version of that 1807 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1808 again. As for prominent ports this affects neither pciutils 1809 nor xorg-server this time, the hal port needs to be rebuilt 1810 however. 1811 181220071020: 1813 The misnamed kthread_create() and friends have been renamed 1814 to kproc_create() etc. Many of the callers already 1815 used kproc_start().. 1816 I will return kthread_create() and friends in a while 1817 with implementations that actually create threads, not procs. 1818 Renaming corresponds with version 800002. 1819 182020071010: 1821 RELENG_7 branched. 1822 1823COMMON ITEMS: 1824 1825 General Notes 1826 ------------- 1827 Avoid using make -j when upgrading. While generally safe, there are 1828 sometimes problems using -j to upgrade. If your upgrade fails with 1829 -j, please try again without -j. From time to time in the past there 1830 have been problems using -j with buildworld and/or installworld. This 1831 is especially true when upgrading between "distant" versions (eg one 1832 that cross a major release boundary or several minor releases, or when 1833 several months have passed on the -current branch). 1834 1835 Sometimes, obscure build problems are the result of environment 1836 poisoning. This can happen because the make utility reads its 1837 environment when searching for values for global variables. To run 1838 your build attempts in an "environmental clean room", prefix all make 1839 commands with 'env -i '. See the env(1) manual page for more details. 1840 1841 When upgrading from one major version to another it is generally best 1842 to upgrade to the latest code in the currently installed branch first, 1843 then do an upgrade to the new branch. This is the best-tested upgrade 1844 path, and has the highest probability of being successful. Please try 1845 this approach before reporting problems with a major version upgrade. 1846 1847 When upgrading a live system, having a root shell around before 1848 installing anything can help undo problems. Not having a root shell 1849 around can lead to problems if pam has changed too much from your 1850 starting point to allow continued authentication after the upgrade. 1851 1852 ZFS notes 1853 --------- 1854 When upgrading the boot ZFS pool to a new version, always follow 1855 these two steps: 1856 1857 1.) recompile and reinstall the ZFS boot loader and boot block 1858 (this is part of "make buildworld" and "make installworld") 1859 1860 2.) update the ZFS boot block on your boot drive 1861 1862 The following example updates the ZFS boot block on the first 1863 partition (freebsd-boot) of a GPT partitioned drive ad0: 1864 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 1865 1866 Non-boot pools do not need these updates. 1867 1868 To build a kernel 1869 ----------------- 1870 If you are updating from a prior version of FreeBSD (even one just 1871 a few days old), you should follow this procedure. It is the most 1872 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1873 1874 make kernel-toolchain 1875 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1876 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1877 1878 To test a kernel once 1879 --------------------- 1880 If you just want to boot a kernel once (because you are not sure 1881 if it works, or if you want to boot a known bad kernel to provide 1882 debugging information) run 1883 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1884 nextboot -k testkernel 1885 1886 To just build a kernel when you know that it won't mess you up 1887 -------------------------------------------------------------- 1888 This assumes you are already running a CURRENT system. Replace 1889 ${arch} with the architecture of your machine (e.g. "i386", 1890 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1891 1892 cd src/sys/${arch}/conf 1893 config KERNEL_NAME_HERE 1894 cd ../compile/KERNEL_NAME_HERE 1895 make depend 1896 make 1897 make install 1898 1899 If this fails, go to the "To build a kernel" section. 1900 1901 To rebuild everything and install it on the current system. 1902 ----------------------------------------------------------- 1903 # Note: sometimes if you are running current you gotta do more than 1904 # is listed here if you are upgrading from a really old current. 1905 1906 <make sure you have good level 0 dumps> 1907 make buildworld 1908 make kernel KERNCONF=YOUR_KERNEL_HERE 1909 [1] 1910 <reboot in single user> [3] 1911 mergemaster -p [5] 1912 make installworld 1913 mergemaster -i [4] 1914 make delete-old [6] 1915 <reboot> 1916 1917 To cross-install current onto a separate partition 1918 -------------------------------------------------- 1919 # In this approach we use a separate partition to hold 1920 # current's root, 'usr', and 'var' directories. A partition 1921 # holding "/", "/usr" and "/var" should be about 2GB in 1922 # size. 1923 1924 <make sure you have good level 0 dumps> 1925 <boot into -stable> 1926 make buildworld 1927 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1928 <maybe newfs current's root partition> 1929 <mount current's root partition on directory ${CURRENT_ROOT}> 1930 make installworld DESTDIR=${CURRENT_ROOT} 1931 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1932 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1933 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1934 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1935 <reboot into current> 1936 <do a "native" rebuild/install as described in the previous section> 1937 <maybe install compatibility libraries from ports/misc/compat*> 1938 <reboot> 1939 1940 1941 To upgrade in-place from stable to current 1942 ---------------------------------------------- 1943 <make sure you have good level 0 dumps> 1944 make buildworld [9] 1945 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1946 [1] 1947 <reboot in single user> [3] 1948 mergemaster -p [5] 1949 make installworld 1950 mergemaster -i [4] 1951 make delete-old [6] 1952 <reboot> 1953 1954 Make sure that you've read the UPDATING file to understand the 1955 tweaks to various things you need. At this point in the life 1956 cycle of current, things change often and you are on your own 1957 to cope. The defaults can also change, so please read ALL of 1958 the UPDATING entries. 1959 1960 Also, if you are tracking -current, you must be subscribed to 1961 freebsd-current@freebsd.org. Make sure that before you update 1962 your sources that you have read and understood all the recent 1963 messages there. If in doubt, please track -stable which has 1964 much fewer pitfalls. 1965 1966 [1] If you have third party modules, such as vmware, you 1967 should disable them at this point so they don't crash your 1968 system on reboot. 1969 1970 [3] From the bootblocks, boot -s, and then do 1971 fsck -p 1972 mount -u / 1973 mount -a 1974 cd src 1975 adjkerntz -i # if CMOS is wall time 1976 Also, when doing a major release upgrade, it is required that 1977 you boot into single user mode to do the installworld. 1978 1979 [4] Note: This step is non-optional. Failure to do this step 1980 can result in a significant reduction in the functionality of the 1981 system. Attempting to do it by hand is not recommended and those 1982 that pursue this avenue should read this file carefully, as well 1983 as the archives of freebsd-current and freebsd-hackers mailing lists 1984 for potential gotchas. The -U option is also useful to consider. 1985 See mergemaster(8) for more information. 1986 1987 [5] Usually this step is a noop. However, from time to time 1988 you may need to do this if you get unknown user in the following 1989 step. It never hurts to do it all the time. You may need to 1990 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1991 install) after the buildworld before this step if you last updated 1992 from current before 20130425 or from -stable before 20130430. 1993 1994 [6] This only deletes old files and directories. Old libraries 1995 can be deleted by "make delete-old-libs", but you have to make 1996 sure that no program is using those libraries anymore. 1997 1998 [8] In order to have a kernel that can run the 4.x binaries needed to 1999 do an installworld, you must include the COMPAT_FREEBSD4 option in 2000 your kernel. Failure to do so may leave you with a system that is 2001 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2002 required to run the 5.x binaries on more recent kernels. And so on 2003 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2004 2005 Make sure that you merge any new devices from GENERIC since the 2006 last time you updated your kernel config file. 2007 2008 [9] When checking out sources, you must include the -P flag to have 2009 cvs prune empty directories. 2010 2011 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2012 "?=" instead of the "=" assignment operator, so that buildworld can 2013 override the CPUTYPE if it needs to. 2014 2015 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2016 not on the command line, or in /etc/make.conf. buildworld will 2017 warn if it is improperly defined. 2018FORMAT: 2019 2020This file contains a list, in reverse chronological order, of major 2021breakages in tracking -current. It is not guaranteed to be a complete 2022list of such breakages, and only contains entries since October 10, 2007. 2023If you need to see UPDATING entries from before that date, you will need 2024to fetch an UPDATING file from an older FreeBSD release. 2025 2026Copyright information: 2027 2028Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2029 2030Redistribution, publication, translation and use, with or without 2031modification, in full or in part, in any form or format of this 2032document are permitted without further permission from the author. 2033 2034THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2035IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2036WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2037DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2038INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2039(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2040SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2041HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2042STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2043IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2044POSSIBILITY OF SUCH DAMAGE. 2045 2046Contact Warner Losh if you have any questions about your use of 2047this document. 2048 2049$FreeBSD: releng/10.0/UPDATING 264267 2014-04-08 18:27:46Z delphij $ 2050