UPDATING revision 274110
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 1920141104: p12 FreeBSD-SA-14:24.sshd 20 FreeBSD-SA-14:25.setlogin 21 FreeBSD-SA-14:26.ftp 22 FreeBSD-EN-14:12.zfs 23 24 Fix denial of service attack against sshd(8). [SA-14:24] 25 26 Fix kernel stack disclosure in setlogin(2) / getlogin(2). 27 [SA-14:25] 28 29 Fix remote command execution in ftp(1). [SA-14:26] 30 31 Fix NFSv4 and ZFS cache consistency issue. [EN-14:12] 32 3320141022: p11 FreeBSD-EN-14:10.tzdata 34 35 Time zone data file update. [EN-14:10] 36 3720141021: p10 FreeBSD-SA-14:20.rtsold 38 FreeBSD-SA-14:21.routed 39 FreeBSD-SA-14:22.namei 40 FreeBSD-SA-14:23.openssl 41 42 Fix rtsold(8) remote buffer overflow vulnerability. [SA-14:20] 43 44 Fix routed(8) remote denial of service vulnerability. [SA-14:21] 45 46 Fix memory leak in sandboxed namei lookup. [SA-14:22] 47 48 Fix OpenSSL multiple vulnerabilities. [SA-14:23] 49 5020140916: p9 FreeBSD-SA-14:19.tcp 51 Fix Denial of Service in TCP packet processing. [SA-14:19] 52 5320140909: p8 FreeBSD-SA-14:18.openssl 54 Fix OpenSSL multiple vulnerabilities. [SA-14:18] 55 5620140708: p7 FreeBSD-SA-14:17.kmem 57 Fix kernel memory disclosure in control messages and SCTP 58 notifications. [SA-14:17] 59 6020140624: p6 FreeBSD-SA-14:15.iconv 61 FreeBSD-SA-14:16.file 62 FreeBSD-EN-14:07.pmap 63 64 Fix iconv(3) NULL pointer dereference and out-of-bounds array 65 access. [SA-14:15] 66 67 Fix multiple vulnerabilities in file(1) and libmagic(3). 68 [SA-14:16] 69 70 Worked around bug with PCID implementation. [EN-14:07] 71 7220140605: p5 FreeBSD-SA-14:14.openssl 73 Fix OpenSSL multiple vulnerabilities. [SA-14:14] 74 7520140603: p4 FreeBSD-SA-14:11.sendmail 76 FreeBSD-SA-14:13.pam 77 FreeBSD-EN-14:06.exec 78 79 Fix sendmail improper close-on-exec flag handling. [SA-14:11] 80 81 Fix incorrect error handling in PAM policy parser. [SA-14:13] 82 83 Fix triple-fault when executing from a threaded process. 84 [EN-14:06] 85 8620140513: p3 FreeBSD-SA-14:10.openssl 87 FreeBSD-EN-14:05.ciss 88 89 Fix OpenSSL NULL pointer deference vulnerability. [SA-14:10] 90 91 Fix data corruption with ciss(4). [EN-14:05] 92 9320140430: p2 FreeBSD-SA-14:07.devfs 94 FreeBSD-SA-14:08.tcp 95 FreeBSD-SA-14:09.openssl 96 97 Fix devfs rules not applied by default for jails. [SA-14:07] 98 99 Fix TCP reassembly vulnerability. [SA-14:08] 100 101 Fix OpenSSL use-after-free vulnerability. [SA-14:09] 102 10320140408: p1 FreeBSD-SA-14:05.nfsserver 104 FreeBSD-SA-14:06.openssl 105 Fix deadlock in the NFS server. [SA-14:05] 106 107 Fix multiple vulnerabilities in OpenSSL. [SA-14:06] 108 10920131223: 110 The behavior of gss_pseudo_random() for the krb5 mechanism 111 has changed, for applications requesting a longer random string 112 than produced by the underlying enctype's pseudo-random() function. 113 In particular, the random string produced from a session key of 114 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 115 be different at the 17th octet and later, after this change. 116 The counter used in the PRF+ construction is now encoded as a 117 big-endian integer in accordance with RFC 4402. 118 11920131031: 120 The default version of mtree is nmtree which is obtained from 121 NetBSD. The output is generally the same, but may vary 122 slightly. If you found you need identical output adding 123 "-F freebsd9" to the command line should do the trick. For the 124 time being, the old mtree is available as fmtree. 125 12620131014: 127 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 128 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 129 1.1.4_8 and verify bsdyml not linked in, before running "make 130 delete-old-libs": 131 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 132 or 133 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 134 13520131010: 136 The rc.d/jail script has been updated to support jail(8) 137 configuration file. The "jail_<jname>_*" rc.conf(5) variables 138 for per-jail configuration are automatically converted to 139 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 140 This is transparently backward compatible. See below about some 141 incompatibilities and rc.conf(5) manual page for more details. 142 143 These variables are now deprecated in favor of jail(8) configuration 144 file. One can use "rc.d/jail config <jname>" command to generate 145 a jail(8) configuration file in /var/run/jail.<jname>.conf without 146 running the jail(8) utility. The default pathname of the 147 configuration file is /etc/jail.conf and can be specified by 148 using $jail_conf or $jail_<jname>_conf variables. 149 150 Please note that jail_devfs_ruleset accepts an integer at 151 this moment. Please consider to rewrite the ruleset name 152 with an integer. 153 15420130930: 155 BIND has been removed from the base system. If all you need 156 is a local resolver, simply enable and start the local_unbound 157 service instead. Otherwise, several versions of BIND are 158 available in the ports tree. The dns/bind99 port is one example. 159 160 With this change, nslookup(1) and dig(1) are no longer in the base 161 system. Users should instead use host(1) and drill(1) which are 162 in the base system. Alternatively, nslookup and dig can 163 be obtained by installing the dns/bind-tools port. 164 16520130916: 166 With the addition of unbound(8), a new unbound user is now 167 required during installworld. "mergemaster -p" can be used to 168 add the user prior to installworld, as documented in the handbook. 169 17020130911: 171 OpenSSH is now built with DNSSEC support, and will by default 172 silently trust signed SSHFP records. This can be controlled with 173 the VerifyHostKeyDNS client configuration setting. DNSSEC support 174 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 175 17620130906: 177 The GNU Compiler Collection and C++ standard library (libstdc++) 178 are no longer built by default on platforms where clang is the system 179 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 180 options in src.conf. 181 18220130905: 183 The PROCDESC kernel option is now part of the GENERIC kernel 184 configuration and is required for the rwhod(8) to work. 185 If you are using custom kernel configuration, you should include 186 'options PROCDESC'. 187 18820130905: 189 The API and ABI related to the Capsicum framework was modified 190 in backward incompatible way. The userland libraries and programs 191 have to be recompiled to work with the new kernel. This includes the 192 following libraries and programs, but the whole buildworld is 193 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 194 kdump, procstat, rwho, rwhod, uniq. 195 19620130903: 197 AES-NI intrinsic support has been added to gcc. The AES-NI module 198 has been updated to use this support. A new gcc is required to build 199 the aesni module on both i386 and amd64. 200 20120130821: 202 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 203 Thus "device padlock_rng" and "device rdrand_rng" should be 204 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 205 20620130813: 207 WITH_ICONV has been split into two feature sets. WITH_ICONV now 208 enables just the iconv* functionality and is now on by default. 209 WITH_LIBICONV_COMPAT enables the libiconv api and link time 210 compatability. Set WITHOUT_ICONV to build the old way. 211 If you have been using WITH_ICONV before, you will very likely 212 need to turn on WITH_LIBICONV_COMPAT. 213 21420130806: 215 INVARIANTS option now enables DEBUG for code with OpenSolaris and 216 Illumos origin, including ZFS. If you have INVARIANTS in your 217 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 218 explicitly. 219 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 220 locks if WITNESS option was set. Because that generated a lot of 221 witness(9) reports and all of them were believed to be false 222 positives, this is no longer done. New option OPENSOLARIS_WITNESS 223 can be used to achieve the previous behavior. 224 22520130806: 226 Timer values in IPv6 data structures now use time_uptime instead 227 of time_second. Although this is not a user-visible functional 228 change, userland utilities which directly use them---ndp(8), 229 rtadvd(8), and rtsold(8) in the base system---need to be updated 230 to r253970 or later. 231 23220130802: 233 find -delete can now delete the pathnames given as arguments, 234 instead of only files found below them or if the pathname did 235 not contain any slashes. Formerly, the following error message 236 would result: 237 238 find: -delete: <path>: relative path potentially not safe 239 240 Deleting the pathnames given as arguments can be prevented 241 without error messages using -mindepth 1 or by changing 242 directory and passing "." as argument to find. This works in the 243 old as well as the new version of find. 244 24520130726: 246 Behavior of devfs rules path matching has been changed. 247 Pattern is now always matched against fully qualified devfs 248 path and slash characters must be explicitly matched by 249 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 250 subdirectories must be reviewed. 251 25220130716: 253 The default ARM ABI has changed to the ARM EABI. The old ABI is 254 incompatible with the ARM EABI and all programs and modules will 255 need to be rebuilt to work with a new kernel. 256 257 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 258 259 NOTE: Support for the old ABI will be removed in the future and 260 users are advised to upgrade. 261 26220130709: 263 pkg_install has been disconnected from the build if you really need it 264 you should add WITH_PKGTOOLS in your src.conf(5). 265 26620130709: 267 Most of network statistics structures were changed to be able 268 keep 64-bits counters. Thus all tools, that work with networking 269 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 270 27120130629: 272 Fix targets that run multiple make's to use && rather than ; 273 so that subsequent steps depend on success of previous. 274 275 NOTE: if building 'universe' with -j* on stable/8 or stable/9 276 it would be better to start the build using bmake, to avoid 277 overloading the machine. 278 27920130618: 280 Fix a bug that allowed a tracing process (e.g. gdb) to write 281 to a memory-mapped file in the traced process's address space 282 even if neither the traced process nor the tracing process had 283 write access to that file. 284 28520130615: 286 CVS has been removed from the base system. An exact copy 287 of the code is available from the devel/cvs port. 288 28920130613: 290 Some people report the following error after the switch to bmake: 291 292 make: illegal option -- J 293 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 294 ... 295 *** [buildworld] Error code 2 296 297 this likely due to an old instance of make in 298 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 299 which src/Makefile will use that blindly, if it exists, so if 300 you see the above error: 301 302 rm -rf `make -V MAKEPATH` 303 304 should resolve it. 305 30620130516: 307 Use bmake by default. 308 Whereas before one could choose to build with bmake via 309 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 310 make. The goal is to remove these knobs for 10-RELEASE. 311 312 It is worth noting that bmake (like gmake) treats the command 313 line as the unit of failure, rather than statements within the 314 command line. Thus '(cd some/where && dosomething)' is safer 315 than 'cd some/where; dosomething'. The '()' allows consistent 316 behavior in parallel build. 317 31820130429: 319 Fix a bug that allows NFS clients to issue READDIR on files. 320 32120130426: 322 The WITHOUT_IDEA option has been removed because 323 the IDEA patent expired. 324 32520130426: 326 The sysctl which controls TRIM support under ZFS has been renamed 327 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 328 enabled by default. 329 33020130425: 331 The mergemaster command now uses the default MAKEOBJDIRPREFIX 332 rather than creating it's own in the temporary directory in 333 order allow access to bootstrapped versions of tools such as 334 install and mtree. When upgrading from version of FreeBSD where 335 the install command does not support -l, you will need to 336 install a new mergemaster command if mergemaster -p is required. 337 This can be accomplished with the command (cd src/usr.sbin/mergemaster 338 && make install). 339 34020130404: 341 Legacy ATA stack, disabled and replaced by new CAM-based one since 342 FreeBSD 9.0, completely removed from the sources. Kernel modules 343 atadisk and atapi*, user-level tools atacontrol and burncd are 344 removed. Kernel option `options ATA_CAM` is now permanently enabled 345 and removed. 346 34720130319: 348 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 349 and socketpair(2). Software, in particular Kerberos, may 350 automatically detect and use these during building. The resulting 351 binaries will not work on older kernels. 352 35320130308: 354 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 355 information, see the respective 20130304 entry). 356 35720130304: 358 Recent commits to callout(9) changed the size of struct callout, 359 so the KBI is probably heavily disturbed. Also, some functions 360 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 361 by macros. Every kernel module using it won't load, so rebuild 362 is requested. 363 364 The ctl device has been re-enabled in GENERIC for i386 and amd64, 365 but does not initialize by default (because of the new CTL_DISABLE 366 option) to save memory. To re-enable it, remove the CTL_DISABLE 367 option from the kernel config file or set kern.cam.ctl.disable=0 368 in /boot/loader.conf. 369 37020130301: 371 The ctl device has been disabled in GENERIC for i386 and amd64. 372 This was done due to the extra memory being allocated at system 373 initialisation time by the ctl driver which was only used if 374 a CAM target device was created. This makes a FreeBSD system 375 unusable on 128MB or less of RAM. 376 37720130208: 378 A new compression method (lz4) has been merged to -HEAD. Please 379 refer to zpool-features(7) for more information. 380 381 Please refer to the "ZFS notes" section of this file for information 382 on upgrading boot ZFS pools. 383 38420130129: 385 A BSD-licensed patch(1) variant has been added and is installed 386 as bsdpatch, being the GNU version the default patch. 387 To inverse the logic and use the BSD-licensed one as default, 388 while having the GNU version installed as gnupatch, rebuild 389 and install world with the WITH_BSD_PATCH knob set. 390 39120130121: 392 Due to the use of the new -l option to install(1) during build 393 and install, you must take care not to directly set the INSTALL 394 make variable in your /etc/make.conf, /etc/src.conf, or on the 395 command line. If you wish to use the -C flag for all installs 396 you may be able to add INSTALL+=-C to /etc/make.conf or 397 /etc/src.conf. 398 39920130118: 400 The install(1) option -M has changed meaning and now takes an 401 argument that is a file or path to append logs to. In the 402 unlikely event that -M was the last option on the command line 403 and the command line contained at least two files and a target 404 directory the first file will have logs appended to it. The -M 405 option served little practical purpose in the last decade so its 406 use is expected to be extremely rare. 407 40820121223: 409 After switching to Clang as the default compiler some users of ZFS 410 on i386 systems started to experience stack overflow kernel panics. 411 Please consider using 'options KSTACK_PAGES=4' in such configurations. 412 41320121222: 414 GEOM_LABEL now mangles label names read from file system metadata. 415 Mangling affect labels containing spaces, non-printable characters, 416 '%' or '"'. Device names in /etc/fstab and other places may need to 417 be updated. 418 41920121217: 420 By default, only the 10 most recent kernel dumps will be saved. To 421 restore the previous behaviour (no limit on the number of kernel dumps 422 stored in the dump directory) add the following line to /etc/rc.conf: 423 424 savecore_flags="" 425 42620121201: 427 With the addition of auditdistd(8), a new auditdistd user is now 428 required during installworld. "mergemaster -p" can be used to 429 add the user prior to installworld, as documented in the handbook. 430 43120121117: 432 The sin6_scope_id member variable in struct sockaddr_in6 is now 433 filled by the kernel before passing the structure to the userland via 434 sysctl or routing socket. This means the KAME-specific embedded scope 435 id in sin6_addr.s6_addr[2] is always cleared in userland application. 436 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 437 __FreeBSD_version is bumped to 1000025. 438 43920121105: 440 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 441 This means that the world and kernel will be compiled with clang 442 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 443 and /usr/bin/cpp. To disable this behavior and revert to building 444 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 445 of current may need to bootstrap WITHOUT_CLANG first if the clang 446 build fails (its compatibility window doesn't extend to the 9 stable 447 branch point). 448 44920121102: 450 The IPFIREWALL_FORWARD kernel option has been removed. Its 451 functionality now turned on by default. 452 45320121023: 454 The ZERO_COPY_SOCKET kernel option has been removed and 455 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 456 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 457 mechanism which is not safe and may result in kernel crashes. 458 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 459 driver supports disposeable external page sized mbuf storage. 460 Proper replacements for both zero-copy mechanisms are under 461 consideration and will eventually lead to complete removal 462 of the two kernel options. 463 46420121023: 465 The IPv4 network stack has been converted to network byte 466 order. The following modules need to be recompiled together 467 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 468 pf(4), ipfw(4), ng_ipfw(4), stf(4). 469 47020121022: 471 Support for non-MPSAFE filesystems was removed from VFS. The 472 VFS_VERSION was bumped, all filesystem modules shall be 473 recompiled. 474 47520121018: 476 All the non-MPSAFE filesystems have been disconnected from 477 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 478 portalfs, smbfs, xfs. 479 48020121016: 481 The interface cloning API and ABI has changed. The following 482 modules need to be recompiled together with kernel: 483 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 484 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 485 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 486 48720121015: 488 The sdhci driver was split in two parts: sdhci (generic SD Host 489 Controller logic) and sdhci_pci (actual hardware driver). 490 No kernel config modifications are required, but if you 491 load sdhc as a module you must switch to sdhci_pci instead. 492 49320121014: 494 Import the FUSE kernel and userland support into base system. 495 49620121013: 497 The GNU sort(1) program has been removed since the BSD-licensed 498 sort(1) has been the default for quite some time and no serious 499 problems have been reported. The corresponding WITH_GNU_SORT 500 knob has also gone. 501 50220121006: 503 The pfil(9) API/ABI for AF_INET family has been changed. Packet 504 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 505 with new kernel. 506 50720121001: 508 The net80211(4) ABI has been changed to allow for improved driver 509 PS-POLL and power-save support. All wireless drivers need to be 510 recompiled to work with the new kernel. 511 51220120913: 513 The random(4) support for the VIA hardware random number 514 generator (`PADLOCK') is no longer enabled unconditionally. 515 Add the padlock_rng device in the custom kernel config if 516 needed. The GENERIC kernels on i386 and amd64 do include the 517 device, so the change only affects the custom kernel 518 configurations. 519 52020120908: 521 The pf(4) packet filter ABI has been changed. pfctl(8) and 522 snmp_pf module need to be recompiled to work with new kernel. 523 52420120828: 525 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 526 to -HEAD. Pools that have empty_bpobj in active state can not be 527 imported read-write with ZFS implementations that do not support 528 this feature. For more information read the zpool-features(5) 529 manual page. 530 53120120727: 532 The sparc64 ZFS loader has been changed to no longer try to auto- 533 detect ZFS providers based on diskN aliases but now requires these 534 to be explicitly listed in the OFW boot-device environment variable. 535 53620120712: 537 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 538 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 539 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 540 54120120712: 542 The following sysctls and tunables have been renamed for consistency 543 with other variables: 544 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 545 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 546 54720120628: 548 The sort utility has been replaced with BSD sort. For now, GNU sort 549 is also available as "gnusort" or the default can be set back to 550 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 551 installed as "bsdsort". 552 55320120611: 554 A new version of ZFS (pool version 5000) has been merged to -HEAD. 555 Starting with this version the old system of ZFS pool versioning 556 is superseded by "feature flags". This concept enables forward 557 compatibility against certain future changes in functionality of ZFS 558 pools. The first read-only compatible "feature flag" for ZFS pools 559 is named "com.delphix:async_destroy". For more information 560 read the new zpool-features(5) manual page. 561 Please refer to the "ZFS notes" section of this file for information 562 on upgrading boot ZFS pools. 563 56420120417: 565 The malloc(3) implementation embedded in libc now uses sources imported 566 as contrib/jemalloc. The most disruptive API change is to 567 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 568 delete it prior to installworld, and optionally re-create it using the 569 new format after rebooting. See malloc.conf(5) for details 570 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 571 NAMESPACE section). 572 57320120328: 574 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 575 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 576 now spelled mips. This is to aid compatibility with third-party 577 software that expects this naming scheme in uname(3). Little-endian 578 settings are unchanged. If you are updating a big-endian mips64 machine 579 from before this change, you may need to set MACHINE_ARCH=mips64 in 580 your environment before the new build system will recognize your machine. 581 58220120306: 583 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 584 platforms. 585 58620120229: 587 Now unix domain sockets behave "as expected" on nullfs(5). Previously 588 nullfs(5) did not pass through all behaviours to the underlying layer, 589 as a result if we bound to a socket on the lower layer we could connect 590 only to the lower path; if we bound to the upper layer we could connect 591 only to the upper path. The new behavior is one can connect to both the 592 lower and the upper paths regardless what layer path one binds to. 593 59420120211: 595 The getifaddrs upgrade path broken with 20111215 has been restored. 596 If you have upgraded in between 20111215 and 20120209 you need to 597 recompile libc again with your kernel. You still need to recompile 598 world to be able to configure CARP but this restriction already 599 comes from 20111215. 600 60120120114: 602 The set_rcvar() function has been removed from /etc/rc.subr. All 603 base and ports rc.d scripts have been updated, so if you have a 604 port installed with a script in /usr/local/etc/rc.d you can either 605 hand-edit the rcvar= line, or reinstall the port. 606 607 An easy way to handle the mass-update of /etc/rc.d: 608 rm /etc/rc.d/* && mergemaster -i 609 61020120109: 611 panic(9) now stops other CPUs in the SMP systems, disables interrupts 612 on the current CPU and prevents other threads from running. 613 This behavior can be reverted using the kern.stop_scheduler_on_panic 614 tunable/sysctl. 615 The new behavior can be incompatible with kern.sync_on_panic. 616 61720111215: 618 The carp(4) facility has been changed significantly. Configuration 619 of the CARP protocol via ifconfig(8) has changed, as well as format 620 of CARP events submitted to devd(8) has changed. See manual pages 621 for more information. The arpbalance feature of carp(4) is currently 622 not supported anymore. 623 624 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 625 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 626 need to be recompiled. 627 62820111122: 629 The acpi_wmi(4) status device /dev/wmistat has been renamed to 630 /dev/wmistat0. 631 63220111108: 633 The option VFS_ALLOW_NONMPSAFE option has been added in order to 634 explicitely support non-MPSAFE filesystems. 635 It is on by default for all supported platform at this present 636 time. 637 63820111101: 639 The broken amd(4) driver has been replaced with esp(4) in the amd64, 640 i386 and pc98 GENERIC kernel configuration files. 641 64220110930: 643 sysinstall has been removed 644 64520110923: 646 The stable/9 branch created in subversion. This corresponds to the 647 RELENG_9 branch in CVS. 648 64920110913: 650 This commit modifies vfs_register() so that it uses a hash 651 calculation to set vfc_typenum, which is enabled by default. 652 The first time a system is booted after this change, the 653 vfc_typenum values will change for all file systems. The 654 main effect of this is a change to the NFS server file handles 655 for file systems that use vfc_typenum in their fsid, such as ZFS. 656 It will, however, prevent vfc_typenum from changing when file 657 systems are loaded in a different order for subsequent reboots. 658 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 659 until you are ready to remount all NFS clients after a reboot. 660 66120110828: 662 Bump the shared library version numbers for libraries that 663 do not use symbol versioning, have changed the ABI compared 664 to stable/8 and which shared library version was not bumped. 665 Done as part of 9.0-RELEASE cycle. 666 66720110815: 668 During the merge of Capsicum features, the fget(9) KPI was modified. 669 This may require the rebuilding of out-of-tree device drivers -- 670 issues have been reported specifically with the nVidia device driver. 671 __FreeBSD_version is bumped to 900041. 672 673 Also, there is a period between 20110811 and 20110814 where the 674 special devices /dev/{stdin,stdout,stderr} did not work correctly. 675 Building world from a kernel during that window may not work. 676 67720110628: 678 The packet filter (pf) code has been updated to OpenBSD 4.5. 679 You need to update userland tools to be in sync with kernel. 680 This update breaks backward compatibility with earlier pfsync(4) 681 versions. Care must be taken when updating redundant firewall setups. 682 68320110608: 684 The following sysctls and tunables are retired on x86 platforms: 685 machdep.hlt_cpus 686 machdep.hlt_logical_cpus 687 The following sysctl is retired: 688 machdep.hyperthreading_allowed 689 The sysctls were supposed to provide a way to dynamically offline and 690 online selected CPUs on x86 platforms, but the implementation has not 691 been reliable especially with SCHED_ULE scheduler. 692 machdep.hyperthreading_allowed tunable is still available to ignore 693 hyperthreading CPUs at OS level. 694 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 695 where X is an APIC ID of a CPU. Be advised, though, that disabling 696 CPUs in non-uniform fashion will result in non-uniform topology and 697 may lead to sub-optimal system performance with SCHED_ULE, which is 698 a default scheduler. 699 70020110607: 701 cpumask_t type is retired and cpuset_t is used in order to describe 702 a mask of CPUs. 703 70420110531: 705 Changes to ifconfig(8) for dynamic address family detection mandate 706 that you are running a kernel of 20110525 or later. Make sure to 707 follow the update procedure to boot a new kernel before installing 708 world. 709 71020110513: 711 Support for sun4v architecture is officially dropped 712 71320110503: 714 Several KPI breaking changes have been committed to the mii(4) layer, 715 the PHY drivers and consequently some Ethernet drivers using mii(4). 716 This means that miibus.ko and the modules of the affected Ethernet 717 drivers need to be recompiled. 718 719 Note to kernel developers: Given that the OUI bit reversion problem 720 was fixed as part of these changes all mii(4) commits related to OUIs, 721 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 722 handling, no longer can be merged verbatim to stable/8 and previous 723 branches. 724 72520110430: 726 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 727 into their kernel configurations along with 'device pci'. 728 72920110427: 730 The default NFS client is now the new NFS client, so fstype "newnfs" 731 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 732 Although mounts via fstype "nfs" will usually work without userland 733 changes, it is recommended that the mount(8) and mount_nfs(8) 734 commands be rebuilt from sources and that a link to mount_nfs called 735 mount_oldnfs be created. The new client is compiled into the 736 kernel with "options NFSCL" and this is needed for diskless root 737 file systems. The GENERIC kernel configs have been changed to use 738 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 739 To use the regular/old client, you can "mount -t oldnfs ...". For 740 a diskless root file system, you must also include a line like: 741 742 vfs.root.mountfrom="oldnfs:" 743 744 in the boot/loader.conf on the root fs on the NFS server to make 745 a diskless root fs use the old client. 746 74720110424: 748 The GENERIC kernels for all architectures now default to the new 749 CAM-based ATA stack. It means that all legacy ATA drivers were 750 removed and replaced by respective CAM drivers. If you are using 751 ATA device names in /etc/fstab or other places, make sure to update 752 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 753 where 'Y's are the sequential numbers starting from zero for each type 754 in order of detection, unless configured otherwise with tunables, 755 see cam(4)). There will be symbolic links created in /dev/ to map 756 old adX devices to the respective adaY. They should provide basic 757 compatibility for file systems mounting in most cases, but they do 758 not support old user-level APIs and do not have respective providers 759 in GEOM. Consider using updated management tools with new device names. 760 761 It is possible to load devices ahci, ata, siis and mvs as modules, 762 but option ATA_CAM should remain in kernel configuration to make ata 763 module work as CAM driver supporting legacy ATA controllers. Device ata 764 still can be used in modular fashion (atacore + ...). Modules atadisk 765 and atapi* are not used and won't affect operation in ATA_CAM mode. 766 Note that to use CAM-based ATA kernel should include CAM devices 767 scbus, pass, da (or explicitly ada), cd and optionally others. All of 768 them are parts of the cam module. 769 770 ataraid(4) functionality is now supported by the RAID GEOM class. 771 To use it you can load geom_raid kernel module and use graid(8) tool 772 for management. Instead of /dev/arX device names, use /dev/raid/rX. 773 774 No kernel config options or code have been removed, so if a problem 775 arises, please report it and optionally revert to the old ATA stack. 776 In order to do it you can remove from the kernel config: 777 options ATA_CAM 778 device ahci 779 device mvs 780 device siis 781 , and instead add back: 782 device atadisk # ATA disk drives 783 device ataraid # ATA RAID drives 784 device atapicd # ATAPI CDROM drives 785 device atapifd # ATAPI floppy drives 786 device atapist # ATAPI tape drives 787 78820110423: 789 The default NFS server has been changed to the new server, which 790 was referred to as the experimental server. If you need to switch 791 back to the old NFS server, you must now put the "-o" option on 792 both the mountd and nfsd commands. This can be done using the 793 mountd_flags and nfs_server_flags rc.conf variables until an 794 update to the rc scripts is committed, which is coming soon. 795 79620110418: 797 The GNU Objective-C runtime library (libobjc), and other Objective-C 798 related components have been removed from the base system. If you 799 require an Objective-C library, please use one of the available ports. 800 80120110331: 802 ath(4) has been split into bus- and device- modules. if_ath contains 803 the HAL, the TX rate control and the network device code. if_ath_pci 804 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 805 contains the AHB glue. Users need to load both if_ath_pci and if_ath 806 in order to use ath on everything else. 807 808 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 809 need to load if_ath and if_ath_pci for ath(4) operation. 810 81120110314: 812 As part of the replacement of sysinstall, the process of building 813 release media has changed significantly. For details, please re-read 814 release(7), which has been updated to reflect the new build process. 815 81620110218: 817 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 818 is the last available version under GPLv2. It brings a number of new 819 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 820 4.1 and SSE 4.2), better support for powerpc64, a number of new 821 directives, and lots of other small improvements. See the ChangeLog 822 file in contrib/binutils for the full details. 823 82420110218: 825 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 826 compliant, and will now use half of hash for authentication. 827 This will break interoperability with all stacks (including all 828 actual FreeBSD versions) who implement 829 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 830 authentication). 831 The only workaround with such peers is to use another HMAC 832 algorithm for IPsec ("phase 2") authentication. 833 83420110207: 835 Remove the uio_yield prototype and symbol. This function has 836 been misnamed since it was introduced and should not be 837 globally exposed with this name. The equivalent functionality 838 is now available using kern_yield(curthread->td_user_pri). 839 The function remains undocumented. 840 84120110112: 842 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 843 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 844 for scalar sysctls is defined but disabled. Code that needs 845 UQUAD to pass the type checking that must compile on older 846 systems where the define is not present can check against 847 __FreeBSD_version >= 900030. 848 849 The system dialog(1) has been replaced with a new version previously 850 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 851 with the previous version, but the libdialog associated with it has 852 a largely incompatible API. As such, the original version of libdialog 853 will be kept temporarily as libodialog, until its base system consumers 854 are replaced or updated. Bump __FreeBSD_version to 900030. 855 85620110103: 857 If you are trying to run make universe on a -stable system, and you get 858 the following warning: 859 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 860 unknown. config(8) likely too old." 861 or something similar to it, then you must upgrade your -stable system 862 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 863 stable/8) or build the config from the latest stable/8 branch and 864 install it on your system. 865 866 Prior to this date, building a current universe on 8-stable system from 867 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 868 error in the first kernel build phase. A new config on those old 869 systems will fix that problem for older versions of -current. 870 87120101228: 872 The TCP stack has been modified to allow Khelp modules to interact with 873 it via helper hook points and store per-connection data in the TCP 874 control block. Bump __FreeBSD_version to 900029. User space tools that 875 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 876 be recompiled. 877 87820101114: 879 Generic IEEE 802.3 annex 31B full duplex flow control support has been 880 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 881 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 882 to take advantage of it instead of using custom implementations. This 883 means that these drivers now no longer unconditionally advertise 884 support for flow control but only do so if flow control is a selected 885 media option. This was implemented in the generic support that way in 886 order to allow flow control to be switched on and off via ifconfig(8) 887 with the PHY specific default to typically off in order to protect 888 from unwanted effects. Consequently, if you used flow control with 889 one of the above mentioned drivers you now need to explicitly enable 890 it, for example via: 891 ifconfig bge0 media auto mediaopt flowcontrol 892 893 Along with the above mentioned changes generic support for setting 894 1000baseT master mode also has been added and brgphy(4), ciphy(4), 895 e1000phy(4) as well as ip1000phy(4) have been converted to take 896 advantage of it. This means that these drivers now no longer take the 897 link0 parameter for selecting master mode but the master media option 898 has to be used instead, for example like in the following: 899 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 900 901 Selection of master mode now is also available with all other PHY 902 drivers supporting 1000baseT. 903 90420101111: 905 The TCP stack has received a significant update to add support for 906 modularised congestion control and generally improve the clarity of 907 congestion control decisions. Bump __FreeBSD_version to 900025. User 908 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 909 sockstat) need to be recompiled. 910 91120101002: 912 The man(1) utility has been replaced by a new version that no longer 913 uses /etc/manpath.config. Please consult man.conf(5) for how to 914 migrate local entries to the new format. 915 91620100928: 917 The copyright strings printed by login(1) and sshd(8) at the time of a 918 new connection have been removed to follow other operating systems and 919 upstream sshd. 920 92120100915: 922 A workaround for a fixed ld bug has been removed in kernel code, 923 so make sure that your system ld is built from sources after 924 revision 210245 from 2010-07-19 (r211583 if building head kernel 925 on stable/8, r211584 for stable/7; both from 2010-08-21). 926 A symptom of incorrect ld version is different addresses for 927 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 928 92920100913: 930 The $ipv6_prefer variable in rc.conf(5) has been split into 931 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 932 933 The $ip6addrctl_policy is a variable to choose a pre-defined 934 address selection policy set by ip6addrctl(8). A value 935 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 936 default is "AUTO". 937 938 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 939 flag (see an entry of 20090926) is set on an interface with no 940 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 941 security reason. If you want IPv6 link-local address on all 942 interfaces by default, set this to "YES". 943 944 The old ipv6_prefer="YES" is equivalent to 945 ipv6_activate_all_interfaces="YES" and 946 ip6addrctl_policy="ipv6_prefer". 947 94820100913: 949 DTrace has grown support for userland tracing. Due to this, DTrace is 950 now i386 and amd64 only. 951 dtruss(1) is now installed by default on those systems and a new 952 kernel module is needed for userland tracing: fasttrap. 953 No changes to your kernel config file are necessary to enable 954 userland tracing, but you might consider adding 'STRIP=' and 955 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 956 to have informative userland stack traces in DTrace (ustack). 957 95820100725: 959 The acpi_aiboost(4) driver has been removed in favor of the new 960 aibs(4) driver. You should update your kernel configuration file. 961 96220100722: 963 BSD grep has been imported to the base system and it is built by 964 default. It is completely BSD licensed, highly GNU-compatible, uses 965 less memory than its GNU counterpart and has a small codebase. 966 However, it is slower than its GNU counterpart, which is mostly 967 noticeable for larger searches, for smaller ones it is measurable 968 but not significant. The reason is complex, the most important factor 969 is that we lack a modern and efficient regex library and GNU 970 overcomes this by optimizing the searches internally. Future work 971 on improving the regex performance is planned, for the meantime, 972 users that need better performance, can build GNU grep instead by 973 setting the WITH_GNU_GREP knob. 974 97520100713: 976 Due to the import of powerpc64 support, all existing powerpc kernel 977 configuration files must be updated with a machine directive like this: 978 machine powerpc powerpc 979 980 In addition, an updated config(8) is required to build powerpc kernels 981 after this change. 982 98320100713: 984 A new version of ZFS (version 15) has been merged to -HEAD. 985 This version uses a python library for the following subcommands: 986 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 987 For full functionality of these commands the following port must 988 be installed: sysutils/py-zfs 989 99020100429: 991 'vm_page's are now hashed by physical address to an array of mutexes. 992 Currently this is only used to serialize access to hold_count. Over 993 time the page queue mutex will be peeled away. This changes the size 994 of pmap on every architecture. And requires all callers of vm_page_hold 995 and vm_page_unhold to be updated. 996 99720100402: 998 WITH_CTF can now be specified in src.conf (not recommended, there 999 are some problems with static executables), make.conf (would also 1000 affect ports which do not use GNU make and do not override the 1001 compile targets) or in the kernel config (via "makeoptions 1002 WITH_CTF=yes"). 1003 When WITH_CTF was specified there before this was silently ignored, 1004 so make sure that WITH_CTF is not used in places which could lead 1005 to unwanted behavior. 1006 100720100311: 1008 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1009 to allow 32-bit compatibility on non-x86 platforms. All kernel 1010 configurations on amd64 and ia64 platforms using these options must 1011 be modified accordingly. 1012 101320100113: 1014 The utmp user accounting database has been replaced with utmpx, 1015 the user accounting interface standardized by POSIX. 1016 Unfortunately the semantics of utmp and utmpx don't match, 1017 making it practically impossible to support both interfaces. 1018 The user accounting database is used by tools like finger(1), 1019 last(1), talk(1), w(1) and ac(8). 1020 1021 All applications in the base system use utmpx. This means only 1022 local binaries (e.g. from the ports tree) may still use these 1023 utmp database files. These applications must be rebuilt to make 1024 use of utmpx. 1025 1026 After the system has been upgraded, it is safe to remove the old 1027 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1028 assuming their contents is of no importance anymore. Old wtmp 1029 databases can only be used by last(1) and ac(8) after they have 1030 been converted to the new format using wtmpcvt(1). 1031 103220100108: 1033 Introduce the kernel thread "deadlock resolver" (which can be enabled 1034 via the DEADLKRES option, see NOTES for more details) and the 1035 sleepq_type() function for sleepqueues. 1036 103720091202: 1038 The rc.firewall and rc.firewall6 were unified, and 1039 rc.firewall6 and rc.d/ip6fw were removed. 1040 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1041 variables are obsoleted. Instead, the following new rc 1042 variables are added to rc.d/ipfw: 1043 1044 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1045 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1046 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1047 1048 The meanings correspond to the relevant IPv4 variables. 1049 105020091125: 1051 8.0-RELEASE. 1052 105320091113: 1054 The default terminal emulation for syscons(4) has been changed 1055 from cons25 to xterm on all platforms except pc98. This means 1056 that the /etc/ttys file needs to be updated to ensure correct 1057 operation of applications on the console. 1058 1059 The terminal emulation style can be toggled per window by using 1060 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1061 options can be used to change the compile-time default back to 1062 cons25. 1063 1064 To prevent graphical artifacts, make sure the TERM environment 1065 variable is set to match the terminal emulation that is being 1066 performed by syscons(4). 1067 106820091109: 1069 The layout of the structure ieee80211req_scan_result has changed. 1070 Applications that require wireless scan results (e.g. ifconfig(8)) 1071 from net80211 need to be recompiled. 1072 1073 Applications such as wpa_supplicant(8) may require a full world 1074 build without using NO_CLEAN in order to get synchronized with the 1075 new structure. 1076 107720091025: 1078 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1079 There's one kernel module for each firmware. Adding "device iwnfw" 1080 to the kernel configuration file means including all three firmware 1081 images inside the kernel. If you want to include just the one for 1082 your wireless card, use the devices iwn4965fw, iwn5000fw or 1083 iwn5150fw. 1084 108520090926: 1086 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1087 into rc.d/netif. The changes are the following: 1088 1089 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1090 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1091 Note that both variables need the "inet6" keyword at the head. 1092 1093 Do not set $ipv6_network_interfaces manually if you do not 1094 understand what you are doing. It is not needed in most cases. 1095 1096 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1097 they are obsolete. 1098 1099 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1100 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1101 1102 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1103 all configured interfaces have "inet6 accept_rtadv" in the 1104 $ifconfig_IF_ipv6. These are for backward compatibility. 1105 1106 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1107 functionality of interfaces with no corresponding 1108 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1109 and the default address selection policy of ip6addrctl(8) 1110 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1111 Note that if you want to configure IPv6 functionality on the 1112 disabled interfaces after boot, first you need to clear the flag by 1113 using ifconfig(8) like: 1114 1115 ifconfig em0 inet6 -ifdisabled 1116 1117 If YES, the default address selection policy is set as 1118 IPv6-preferred. 1119 1120 The default value of $ipv6_prefer is NO. 1121 1122 4. If your system need to receive Router Advertisement messages, 1123 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1124 scripts automatically invoke rtsol(8) when the interface becomes 1125 UP. The Router Advertisement messages are used for SLAAC 1126 (State-Less Address AutoConfiguration). 1127 112820090922: 1129 802.11s D3.03 support was committed. This is incompatible with the 1130 previous code, which was based on D3.0. 1131 113220090912: 1133 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1134 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1135 control whether accepting Router Advertisement messages or not. 1136 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1137 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1138 The ifconfig(8) utility now supports these flags. 1139 114020090910: 1141 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1142 mount(8) and -a option for df(1) to see them. 1143 114420090825: 1145 The old tunable hw.bus.devctl_disable has been superseded by 1146 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1147 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1148 is 1000. 1149 115020090813: 1151 Remove the option STOP_NMI. The default action is now to use NMI only 1152 for KDB via the newly introduced function stop_cpus_hard() and 1153 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1154 115520090803: 1156 The stable/8 branch created in subversion. This corresponds to the 1157 RELENG_8 branch in CVS. 1158 115920090719: 1160 Bump the shared library version numbers for all libraries that do not 1161 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1162 __FreeBSD_version to 800105. 1163 116420090714: 1165 Due to changes in the implementation of virtual network stack support, 1166 all network-related kernel modules must be recompiled. As this change 1167 breaks the ABI, bump __FreeBSD_version to 800104. 1168 116920090713: 1170 The TOE interface to the TCP syncache has been modified to remove 1171 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1172 The cxgb driver is the only TOE consumer affected by this change, and 1173 needs to be recompiled along with the kernel. As this change breaks 1174 the ABI, bump __FreeBSD_version to 800103. 1175 117620090712: 1177 Padding has been added to struct tcpcb, sackhint and tcpstat in 1178 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1179 maintaining the ABI. However, this change breaks the ABI, so bump 1180 __FreeBSD_version to 800102. User space tools that rely on the size of 1181 any of these structs (e.g. sockstat) need to be recompiled. 1182 118320090630: 1184 The NFS_LEGACYRPC option has been removed along with the old kernel 1185 RPC implementation that this option selected. Kernel configurations 1186 may need to be adjusted. 1187 118820090629: 1189 The network interface device nodes at /dev/net/<interface> have been 1190 removed. All ioctl operations can be performed the normal way using 1191 routing sockets. The kqueue functionality can generally be replaced 1192 with routing sockets. 1193 119420090628: 1195 The documentation from the FreeBSD Documentation Project (Handbook, 1196 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1197 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1198 119920090624: 1200 The ABI of various structures related to the SYSV IPC API have been 1201 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1202 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1203 800100. 1204 120520090622: 1206 Layout of struct vnet has changed as routing related variables were 1207 moved to their own Vimage module. Modules need to be recompiled. Bump 1208 __FreeBSD_version to 800099. 1209 121020090619: 1211 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1212 respectively. As long as no more than 16 groups per process are used, 1213 no changes should be visible. When more than 16 groups are used, old 1214 binaries may fail if they call getgroups() or getgrouplist() with 1215 statically sized storage. Recompiling will work around this, but 1216 applications should be modified to use dynamically allocated storage 1217 for group arrays as POSIX.1-2008 does not cap an implementation's 1218 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1219 1220 NFS and portalfs mounts may also be affected as the list of groups is 1221 truncated to 16. Users of NFS who use more than 16 groups, should 1222 take care that negative group permissions are not used on the exported 1223 file systems as they will not be reliable unless a GSSAPI based 1224 authentication method is used. 1225 122620090616: 1227 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1228 option compiles in the support for adaptive spinning for lockmgrs 1229 which want to enable it. The lockinit() function now accepts the flag 1230 LK_ADAPTIVE in order to make the lock object subject to adaptive 1231 spinning when both held in write and read mode. 1232 123320090613: 1234 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1235 changed. User applications that use this ioctl need to be rebuilt. 1236 123720090611: 1238 The layout of struct thread has changed. Kernel and modules need to 1239 be rebuilt. 1240 124120090608: 1242 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1243 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1244 124520090602: 1246 window(1) has been removed from the base system. It can now be 1247 installed from ports. The port is called misc/window. 1248 124920090601: 1250 The way we are storing and accessing `routing table' entries has 1251 changed. Programs reading the FIB, like netstat, need to be 1252 re-compiled. 1253 125420090601: 1255 A new netisr implementation has been added for FreeBSD 8. Network 1256 file system modules, such as igmp, ipdivert, and others, should be 1257 rebuilt. 1258 Bump __FreeBSD_version to 800096. 1259 126020090530: 1261 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1262 more valid. 1263 126420090530: 1265 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1266 Bump __FreeBSD_version to 800094. 1267 126820090529: 1269 Add mnt_xflag field to 'struct mount'. File system modules need to be 1270 rebuilt. 1271 Bump __FreeBSD_version to 800093. 1272 127320090528: 1274 The compiling option ADAPTIVE_SX has been retired while it has been 1275 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1276 The KPI for sx_init_flags() changes as accepting flags: 1277 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1278 been introduced in order to handle the reversed logic. 1279 Bump __FreeBSD_version to 800092. 1280 128120090527: 1282 Add support for hierarchical jails. Remove global securelevel. 1283 Bump __FreeBSD_version to 800091. 1284 128520090523: 1286 The layout of struct vnet_net has changed, therefore modules 1287 need to be rebuilt. 1288 Bump __FreeBSD_version to 800090. 1289 129020090523: 1291 The newly imported zic(8) produces a new format in the output. Please 1292 run tzsetup(8) to install the newly created data to /etc/localtime. 1293 129420090520: 1295 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1296 hw.usb.* and is now consistent again with previous releases. 1297 129820090520: 1299 802.11 monitor mode support was revised and driver api's were changed. 1300 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1301 of DLT_IEEE802_11. No user-visible data structures were changed but 1302 applications that use DLT_IEEE802_11 may require changes. 1303 Bump __FreeBSD_version to 800088. 1304 130520090430: 1306 The layout of the following structs has changed: sysctl_oid, 1307 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1308 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1309 panics may be experienced. World rebuild is required for 1310 correctly checking networking state from userland. 1311 Bump __FreeBSD_version to 800085. 1312 131320090429: 1314 MLDv2 and Source-Specific Multicast (SSM) have been merged 1315 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1316 The implementation of SSM within FreeBSD's IPv6 stack closely 1317 follows the IPv4 implementation. 1318 1319 For kernel developers: 1320 1321 * The most important changes are that the ip6_output() and 1322 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1323 and this lock has been downgraded to a non-recursive mutex. 1324 1325 * As with the changes to the IPv4 stack to support SSM, filtering 1326 of inbound multicast traffic must now be performed by transport 1327 protocols within the IPv6 stack. This does not apply to TCP and 1328 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1329 1330 * The KPIs used by IPv6 multicast are similar to those used by 1331 the IPv4 stack, with the following differences: 1332 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1333 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1334 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1335 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1336 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1337 for MLDv1 have an additional 'timer' argument which is used to 1338 jitter the initial membership report for the solicited-node 1339 multicast membership on-link. 1340 * This is not strictly needed for MLDv2, which already jitters 1341 its report transmissions. However, the 'timer' argument is 1342 preserved in case MLDv1 is active on the interface. 1343 1344 * The KAME linked-list based IPv6 membership implementation has 1345 been refactored to use a vector similar to that used by the IPv4 1346 stack. 1347 Code which maintains a list of its own multicast memberships 1348 internally, e.g. carp, has been updated to reflect the new 1349 semantics. 1350 1351 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1352 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1353 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1354 implementation constraint which needs to be addressed in HEAD. 1355 1356 For application developers: 1357 1358 * The changes are broadly similar to those made for the IPv4 1359 stack. 1360 1361 * The use of IPv4 and IPv6 multicast socket options on the same 1362 socket, using mapped addresses, HAS NOT been tested or supported. 1363 1364 * There are a number of issues with the implementation of various 1365 IPv6 multicast APIs which need to be resolved in the API surface 1366 before the implementation is fully compatible with KAME userland 1367 use, and these are mostly to do with interface index treatment. 1368 1369 * The literature available discusses the use of either the delta / ASM 1370 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1371 using setsourcefilter(3)/getsourcefilter(3). For more information 1372 please refer to RFC 3768, 'Socket Interface Extensions for 1373 Multicast Source Filters'. 1374 1375 * Applications which use the published RFC 3678 APIs should be fine. 1376 1377 For systems administrators: 1378 1379 * The mtest(8) utility has been refactored to support IPv6, in 1380 addition to IPv4. Interface addresses are no longer accepted 1381 as arguments, their names must be used instead. The utility 1382 will map the interface name to its first IPv4 address as 1383 returned by getifaddrs(3). 1384 1385 * The ifmcstat(8) utility has also been updated to print the MLDv2 1386 endpoint state and source filter lists via sysctl(3). 1387 1388 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1389 loopback of IPv6 multicast datagrams by default; it defaults to 1 1390 to preserve the existing behaviour. Disabling multicast loopback is 1391 recommended for optimal system performance. 1392 1393 * The IPv6 MROUTING code has been changed to examine this sysctl 1394 instead of attempting to perform a group lookup before looping 1395 back forwarded datagrams. 1396 1397 Bump __FreeBSD_version to 800084. 1398 139920090422: 1400 Implement low-level Bluetooth HCI API. 1401 Bump __FreeBSD_version to 800083. 1402 140320090419: 1404 The layout of struct malloc_type, used by modules to register new 1405 memory allocation types, has changed. Most modules will need to 1406 be rebuilt or panics may be experienced. 1407 Bump __FreeBSD_version to 800081. 1408 140920090415: 1410 Anticipate overflowing inp_flags - add inp_flags2. 1411 This changes most offsets in inpcb, so checking v4 connection 1412 state will require a world rebuild. 1413 Bump __FreeBSD_version to 800080. 1414 141520090415: 1416 Add an llentry to struct route and struct route_in6. Modules 1417 embedding a struct route will need to be recompiled. 1418 Bump __FreeBSD_version to 800079. 1419 142020090414: 1421 The size of rt_metrics_lite and by extension rtentry has changed. 1422 Networking administration apps will need to be recompiled. 1423 The route command now supports show as an alias for get, weighting 1424 of routes, sticky and nostick flags to alter the behavior of stateful 1425 load balancing. 1426 Bump __FreeBSD_version to 800078. 1427 142820090408: 1429 Do not use Giant for kbdmux(4) locking. This is wrong and 1430 apparently causing more problems than it solves. This will 1431 re-open the issue where interrupt handlers may race with 1432 kbdmux(4) in polling mode. Typical symptoms include (but 1433 not limited to) duplicated and/or missing characters when 1434 low level console functions (such as gets) are used while 1435 interrupts are enabled (for example geli password prompt, 1436 mountroot prompt etc.). Disabling kbdmux(4) may help. 1437 143820090407: 1439 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1440 kernel modules referencing any of the above need to be recompiled. 1441 Bump __FreeBSD_version to 800075. 1442 144320090320: 1444 GEOM_PART has become the default partition slicer for storage devices, 1445 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1446 introduces some changes: 1447 1448 MSDOS/EBR: the devices created from MSDOS extended partition entries 1449 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1450 to devices with offset-based names. fstabs may need to be modified. 1451 1452 BSD: the "geometry does not match label" warning is harmless in most 1453 cases but it points to problems in file system misalignment with 1454 disk geometry. The "c" partition is now implicit, covers the whole 1455 top-level drive and cannot be (mis)used by users. 1456 1457 General: Kernel dumps are now not allowed to be written to devices 1458 whose partition types indicate they are meant to be used for file 1459 systems (or, in case of MSDOS partitions, as something else than 1460 the "386BSD" type). 1461 1462 Most of these changes date approximately from 200812. 1463 146420090319: 1465 The uscanner(4) driver has been removed from the kernel. This follows 1466 Linux removing theirs in 2.6 and making libusb the default interface 1467 (supported by sane). 1468 146920090319: 1470 The multicast forwarding code has been cleaned up. netstat(1) 1471 only relies on KVM now for printing bandwidth upcall meters. 1472 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1473 ip6_mroute_mod respectively. The config(5) options for statically 1474 compiling this code remain the same, i.e. 'options MROUTING'. 1475 147620090315: 1477 Support for the IFF_NEEDSGIANT network interface flag has been 1478 removed, which means that non-MPSAFE network device drivers are no 1479 longer supported. In particular, if_ar, if_sr, and network device 1480 drivers from the old (legacy) USB stack can no longer be built or 1481 used. 1482 148320090313: 1484 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1485 a bunch of new language catalog files have also been added. 1486 This means that some common libc messages are now localized and 1487 they depend on the LC_MESSAGES environmental variable. 1488 148920090313: 1490 The k8temp(4) driver has been renamed to amdtemp(4) since 1491 support for Family 10 and Family 11 CPU families was added. 1492 149320090309: 1494 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1495 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1496 1497 For kernel developers, the most important changes are that the 1498 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1499 and this lock has been downgraded to a non-recursive mutex. 1500 1501 Transport protocols (UDP, Raw IP) are now responsible for filtering 1502 inbound multicast traffic according to group membership and source 1503 filters. The imo_multicast_filter() KPI exists for this purpose. 1504 Transports which do not use multicast (SCTP, TCP) already reject 1505 multicast by default. Forwarding and receive performance may improve 1506 as a mutex acquisition is no longer needed in the ip_input() 1507 low-level input path. in_addmulti() and in_delmulti() are shimmed 1508 to new KPIs which exist to support SSM in-kernel. 1509 1510 For application developers, it is recommended that loopback of 1511 multicast datagrams be disabled for best performance, as this 1512 will still cause the lock to be taken for each looped-back 1513 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1514 be tuned to 0 to disable loopback by default; it defaults to 1 1515 to preserve the existing behaviour. 1516 1517 For systems administrators, to obtain best performance with 1518 multicast reception and multiple groups, it is always recommended 1519 that a card with a suitably precise hash filter is used. Hash 1520 collisions will still result in the lock being taken within the 1521 transport protocol input path to check group membership. 1522 1523 If deploying FreeBSD in an environment with IGMP snooping switches, 1524 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1525 enabled; this forces 224.0.0.0/24 group membership to be announced 1526 via IGMP. 1527 1528 The size of 'struct igmpstat' has changed; netstat needs to be 1529 recompiled to reflect this. 1530 Bump __FreeBSD_version to 800070. 1531 153220090309: 1533 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1534 updated to use it. This requires a buildworld/installworld in order to 1535 update the library and dependencies (usbconfig, etc). Its advisable to 1536 rebuild all ports which uses libusb. More specific directions are given 1537 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1538 libusb are no longer required and can be removed. 1539 154020090302: 1541 A workaround is committed to allow the creation of System V shared 1542 memory segment of size > 2 GB on the 64-bit architectures. 1543 Due to a limitation of the existing ABI, the shm_segsz member 1544 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1545 wrong for large segments. Note that limits must be explicitly 1546 raised to allow such segments to be created. 1547 154820090301: 1549 The layout of struct ifnet has changed, requiring a rebuild of all 1550 network device driver modules. 1551 155220090227: 1553 The /dev handling for the new USB stack has changed, a 1554 buildworld/installworld is required for libusb20. 1555 155620090223: 1557 The new USB2 stack has now been permanently moved in and all kernel and 1558 module names reverted to their previous values (eg, usb, ehci, ohci, 1559 ums, ...). The old usb stack can be compiled in by prefixing the name 1560 with the letter 'o', the old usb modules have been removed. 1561 Updating entry 20090216 for xorg and 20090215 for libmap may still 1562 apply. 1563 156420090217: 1565 The rc.conf(5) option if_up_delay has been renamed to 1566 defaultroute_delay to better reflect its purpose. If you have 1567 customized this setting in /etc/rc.conf you need to update it to 1568 use the new name. 1569 157020090216: 1571 xorg 7.4 wants to configure its input devices via hald which does not 1572 yet work with USB2. If the keyboard/mouse does not work in xorg then 1573 add 1574 Option "AllowEmptyInput" "off" 1575 to your ServerLayout section. This will cause X to use the configured 1576 kbd and mouse sections from your xorg.conf. 1577 157820090215: 1579 The GENERIC kernels for all architectures now default to the new USB2 1580 stack. No kernel config options or code have been removed so if a 1581 problem arises please report it and optionally revert to the old USB 1582 stack. If you are loading USB kernel modules or have a custom kernel 1583 that includes GENERIC then ensure that usb names are also changed over, 1584 eg uftdi -> usb2_serial_ftdi. 1585 1586 Older programs linked against the ports libusb 0.1 need to be 1587 redirected to the new stack's libusb20. /etc/libmap.conf can 1588 be used for this: 1589 # Map old usb library to new one for usb2 stack 1590 libusb-0.1.so.8 libusb20.so.1 1591 159220090209: 1593 All USB ethernet devices now attach as interfaces under the name ueN 1594 (eg. ue0). This is to provide a predictable name as vendors often 1595 change usb chipsets in a product without notice. 1596 159720090203: 1598 The ichsmb(4) driver has been changed to require SMBus slave 1599 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1600 All of the other SMBus controller drivers require left-justified 1601 slave addresses, so this change makes all the drivers provide the 1602 same interface. 1603 160420090201: 1605 INET6 statistics (struct ip6stat) was updated. 1606 netstat(1) needs to be recompiled. 1607 160820090119: 1609 NTFS has been removed from GENERIC kernel on amd64 to match 1610 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1611 will load ntfs.ko module automatically when NTFS support is 1612 actually needed, unless ntfs.ko is not installed or security 1613 level prohibits loading kernel modules. If either is the case, 1614 "options NTFS" has to be added into kernel config. 1615 161620090115: 1617 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1618 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1619 800061. User space tools that rely on the size of struct tcpcb in 1620 tcp_var.h (e.g. sockstat) need to be recompiled. 1621 162220081225: 1623 ng_tty(4) module updated to match the new TTY subsystem. 1624 Due to API change, user-level applications must be updated. 1625 New API support added to mpd5 CVS and expected to be present 1626 in next mpd5.3 release. 1627 162820081219: 1629 With __FreeBSD_version 800060 the makefs tool is part of 1630 the base system (it was a port). 1631 163220081216: 1633 The afdata and ifnet locks have been changed from mutexes to 1634 rwlocks, network modules will need to be re-compiled. 1635 163620081214: 1637 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1638 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1639 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1640 architecture and 40 bytes on 64-bit architecture. The userland 1641 applications "arp" and "ndp" have been updated accordingly. 1642 The output from "netstat -r" shows only routing entries and 1643 none of the L2 information. 1644 164520081130: 1646 __FreeBSD_version 800057 marks the switchover from the 1647 binary ath hal to source code. Users must add the line: 1648 1649 options AH_SUPPORT_AR5416 1650 1651 to their kernel config files when specifying: 1652 1653 device ath_hal 1654 1655 The ath_hal module no longer exists; the code is now compiled 1656 together with the driver in the ath module. It is now 1657 possible to tailor chip support (i.e. reduce the set of chips 1658 and thereby the code size); consult ath_hal(4) for details. 1659 166020081121: 1661 __FreeBSD_version 800054 adds memory barriers to 1662 <machine/atomic.h>, new interfaces to ifnet to facilitate 1663 multiple hardware transmit queues for cards that support 1664 them, and a lock-less ring-buffer implementation to 1665 enable drivers to more efficiently manage queueing of 1666 packets. 1667 166820081117: 1669 A new version of ZFS (version 13) has been merged to -HEAD. 1670 This version has zpool attribute "listsnapshots" off by 1671 default, which means "zfs list" does not show snapshots, 1672 and is the same as Solaris behavior. 1673 167420081028: 1675 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1676 167720081009: 1678 The uhci, ohci, ehci and slhci USB Host controller drivers have 1679 been put into separate modules. If you load the usb module 1680 separately through loader.conf you will need to load the 1681 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1682 controller add the following to loader.conf: 1683 1684 uhci_load="YES" 1685 ehci_load="YES" 1686 168720081009: 1688 The ABI used by the PMC toolset has changed. Please keep 1689 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1690 sync. 1691 169220081009: 1693 atapci kernel module now includes only generic PCI ATA 1694 driver. AHCI driver moved to ataahci kernel module. 1695 All vendor-specific code moved into separate kernel modules: 1696 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1697 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1698 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1699 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1700 170120080820: 1702 The TTY subsystem of the kernel has been replaced by a new 1703 implementation, which provides better scalability and an 1704 improved driver model. Most common drivers have been migrated to 1705 the new TTY subsystem, while others have not. The following 1706 drivers have not yet been ported to the new TTY layer: 1707 1708 PCI/ISA: 1709 cy, digi, rc, rp, sio 1710 1711 USB: 1712 ubser, ucycom 1713 1714 Line disciplines: 1715 ng_h4, ng_tty, ppp, sl, snp 1716 1717 Adding these drivers to your kernel configuration file shall 1718 cause compilation to fail. 1719 172020080818: 1721 ntpd has been upgraded to 4.2.4p5. 1722 172320080801: 1724 OpenSSH has been upgraded to 5.1p1. 1725 1726 For many years, FreeBSD's version of OpenSSH preferred DSA 1727 over RSA for host and user authentication keys. With this 1728 upgrade, we've switched to the vendor's default of RSA over 1729 DSA. This may cause upgraded clients to warn about unknown 1730 host keys even for previously known hosts. Users should 1731 follow the usual procedure for verifying host keys before 1732 accepting the RSA key. 1733 1734 This can be circumvented by setting the "HostKeyAlgorithms" 1735 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1736 command line. 1737 1738 Please note that the sequence of keys offered for 1739 authentication has been changed as well. You may want to 1740 specify IdentityFile in a different order to revert this 1741 behavior. 1742 174320080713: 1744 The sio(4) driver has been removed from the i386 and amd64 1745 kernel configuration files. This means uart(4) is now the 1746 default serial port driver on those platforms as well. 1747 1748 To prevent collisions with the sio(4) driver, the uart(4) driver 1749 uses different names for its device nodes. This means the 1750 onboard serial port will now most likely be called "ttyu0" 1751 instead of "ttyd0". You may need to reconfigure applications to 1752 use the new device names. 1753 1754 When using the serial port as a boot console, be sure to update 1755 /boot/device.hints and /etc/ttys before booting the new kernel. 1756 If you forget to do so, you can still manually specify the hints 1757 at the loader prompt: 1758 1759 set hint.uart.0.at="isa" 1760 set hint.uart.0.port="0x3F8" 1761 set hint.uart.0.flags="0x10" 1762 set hint.uart.0.irq="4" 1763 boot -s 1764 176520080609: 1766 The gpt(8) utility has been removed. Use gpart(8) to partition 1767 disks instead. 1768 176920080603: 1770 The version that Linuxulator emulates was changed from 2.4.2 1771 to 2.6.16. If you experience any problems with Linux binaries 1772 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1773 if it fixes the problem contact emulation mailing list. 1774 177520080525: 1776 ISDN4BSD (I4B) was removed from the src tree. You may need to 1777 update a your kernel configuration and remove relevant entries. 1778 177920080509: 1780 I have checked in code to support multiple routing tables. 1781 See the man pages setfib(1) and setfib(2). 1782 This is a hopefully backwards compatible version, 1783 but to make use of it you need to compile your kernel 1784 with options ROUTETABLES=2 (or more up to 16). 1785 178620080420: 1787 The 802.11 wireless support was redone to enable multi-bss 1788 operation on devices that are capable. The underlying device 1789 is no longer used directly but instead wlanX devices are 1790 cloned with ifconfig. This requires changes to rc.conf files. 1791 For example, change: 1792 ifconfig_ath0="WPA DHCP" 1793 to 1794 wlans_ath0=wlan0 1795 ifconfig_wlan0="WPA DHCP" 1796 see rc.conf(5) for more details. In addition, mergemaster of 1797 /etc/rc.d is highly recommended. Simultaneous update of userland 1798 and kernel wouldn't hurt either. 1799 1800 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1801 modules were merged into the base wlan module. All references 1802 to these modules (e.g. in kernel config files) must be removed. 1803 180420080408: 1805 psm(4) has gained write(2) support in native operation level. 1806 Arbitrary commands can be written to /dev/psm%d and status can 1807 be read back from it. Therefore, an application is responsible 1808 for status validation and error recovery. It is a no-op in 1809 other operation levels. 1810 181120080312: 1812 Support for KSE threading has been removed from the kernel. To 1813 run legacy applications linked against KSE libmap.conf may 1814 be used. The following libmap.conf may be used to ensure 1815 compatibility with any prior release: 1816 1817 libpthread.so.1 libthr.so.1 1818 libpthread.so.2 libthr.so.2 1819 libkse.so.3 libthr.so.3 1820 182120080301: 1822 The layout of struct vmspace has changed. This affects libkvm 1823 and any executables that link against libkvm and use the 1824 kvm_getprocs() function. In particular, but not exclusively, 1825 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1826 The effects are minimal, but it's advisable to upgrade world 1827 nonetheless. 1828 182920080229: 1830 The latest em driver no longer has support in it for the 1831 82575 adapter, this is now moved to the igb driver. The 1832 split was done to make new features that are incompatible 1833 with older hardware easier to do. 1834 183520080220: 1836 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1837 likewise the kernel option is now GEOM_LINUX_LVM. 1838 183920080211: 1840 The default NFS mount mode has changed from UDP to TCP for 1841 increased reliability. If you rely on (insecurely) NFS 1842 mounting across a firewall you may need to update your 1843 firewall rules. 1844 184520080208: 1846 Belatedly note the addition of m_collapse for compacting 1847 mbuf chains. 1848 184920080126: 1850 The fts(3) structures have been changed to use adequate 1851 integer types for their members and so to be able to cope 1852 with huge file trees. The old fts(3) ABI is preserved 1853 through symbol versioning in libc, so third-party binaries 1854 using fts(3) should still work, although they will not take 1855 advantage of the extended types. At the same time, some 1856 third-party software might fail to build after this change 1857 due to unportable assumptions made in its source code about 1858 fts(3) structure members. Such software should be fixed 1859 by its vendor or, in the worst case, in the ports tree. 1860 FreeBSD_version 800015 marks this change for the unlikely 1861 case that a portable fix is impossible. 1862 186320080123: 1864 To upgrade to -current after this date, you must be running 1865 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1866 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1867 186820071128: 1869 The ADAPTIVE_GIANT kernel option has been retired because its 1870 functionality is the default now. 1871 187220071118: 1873 The AT keyboard emulation of sunkbd(4) has been turned on 1874 by default. In order to make the special symbols of the Sun 1875 keyboards driven by sunkbd(4) work under X these now have 1876 to be configured the same way as Sun USB keyboards driven 1877 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1878 1879 Option "XkbLayout" "us" 1880 Option "XkbRules" "xorg" 1881 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1882 188320071024: 1884 It has been decided that it is desirable to provide ABI 1885 backwards compatibility to the FreeBSD 4/5/6 versions of the 1886 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1887 broken with the introduction of PCI domain support (see the 1888 20070930 entry). Unfortunately, this required the ABI of 1889 PCIOCGETCONF to be broken again in order to be able to 1890 provide backwards compatibility to the old version of that 1891 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1892 again. As for prominent ports this affects neither pciutils 1893 nor xorg-server this time, the hal port needs to be rebuilt 1894 however. 1895 189620071020: 1897 The misnamed kthread_create() and friends have been renamed 1898 to kproc_create() etc. Many of the callers already 1899 used kproc_start().. 1900 I will return kthread_create() and friends in a while 1901 with implementations that actually create threads, not procs. 1902 Renaming corresponds with version 800002. 1903 190420071010: 1905 RELENG_7 branched. 1906 1907COMMON ITEMS: 1908 1909 General Notes 1910 ------------- 1911 Avoid using make -j when upgrading. While generally safe, there are 1912 sometimes problems using -j to upgrade. If your upgrade fails with 1913 -j, please try again without -j. From time to time in the past there 1914 have been problems using -j with buildworld and/or installworld. This 1915 is especially true when upgrading between "distant" versions (eg one 1916 that cross a major release boundary or several minor releases, or when 1917 several months have passed on the -current branch). 1918 1919 Sometimes, obscure build problems are the result of environment 1920 poisoning. This can happen because the make utility reads its 1921 environment when searching for values for global variables. To run 1922 your build attempts in an "environmental clean room", prefix all make 1923 commands with 'env -i '. See the env(1) manual page for more details. 1924 1925 When upgrading from one major version to another it is generally best 1926 to upgrade to the latest code in the currently installed branch first, 1927 then do an upgrade to the new branch. This is the best-tested upgrade 1928 path, and has the highest probability of being successful. Please try 1929 this approach before reporting problems with a major version upgrade. 1930 1931 When upgrading a live system, having a root shell around before 1932 installing anything can help undo problems. Not having a root shell 1933 around can lead to problems if pam has changed too much from your 1934 starting point to allow continued authentication after the upgrade. 1935 1936 ZFS notes 1937 --------- 1938 When upgrading the boot ZFS pool to a new version, always follow 1939 these two steps: 1940 1941 1.) recompile and reinstall the ZFS boot loader and boot block 1942 (this is part of "make buildworld" and "make installworld") 1943 1944 2.) update the ZFS boot block on your boot drive 1945 1946 The following example updates the ZFS boot block on the first 1947 partition (freebsd-boot) of a GPT partitioned drive ad0: 1948 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 1949 1950 Non-boot pools do not need these updates. 1951 1952 To build a kernel 1953 ----------------- 1954 If you are updating from a prior version of FreeBSD (even one just 1955 a few days old), you should follow this procedure. It is the most 1956 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1957 1958 make kernel-toolchain 1959 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1960 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1961 1962 To test a kernel once 1963 --------------------- 1964 If you just want to boot a kernel once (because you are not sure 1965 if it works, or if you want to boot a known bad kernel to provide 1966 debugging information) run 1967 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1968 nextboot -k testkernel 1969 1970 To just build a kernel when you know that it won't mess you up 1971 -------------------------------------------------------------- 1972 This assumes you are already running a CURRENT system. Replace 1973 ${arch} with the architecture of your machine (e.g. "i386", 1974 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1975 1976 cd src/sys/${arch}/conf 1977 config KERNEL_NAME_HERE 1978 cd ../compile/KERNEL_NAME_HERE 1979 make depend 1980 make 1981 make install 1982 1983 If this fails, go to the "To build a kernel" section. 1984 1985 To rebuild everything and install it on the current system. 1986 ----------------------------------------------------------- 1987 # Note: sometimes if you are running current you gotta do more than 1988 # is listed here if you are upgrading from a really old current. 1989 1990 <make sure you have good level 0 dumps> 1991 make buildworld 1992 make kernel KERNCONF=YOUR_KERNEL_HERE 1993 [1] 1994 <reboot in single user> [3] 1995 mergemaster -p [5] 1996 make installworld 1997 mergemaster -i [4] 1998 make delete-old [6] 1999 <reboot> 2000 2001 To cross-install current onto a separate partition 2002 -------------------------------------------------- 2003 # In this approach we use a separate partition to hold 2004 # current's root, 'usr', and 'var' directories. A partition 2005 # holding "/", "/usr" and "/var" should be about 2GB in 2006 # size. 2007 2008 <make sure you have good level 0 dumps> 2009 <boot into -stable> 2010 make buildworld 2011 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2012 <maybe newfs current's root partition> 2013 <mount current's root partition on directory ${CURRENT_ROOT}> 2014 make installworld DESTDIR=${CURRENT_ROOT} 2015 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2016 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2017 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2018 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2019 <reboot into current> 2020 <do a "native" rebuild/install as described in the previous section> 2021 <maybe install compatibility libraries from ports/misc/compat*> 2022 <reboot> 2023 2024 2025 To upgrade in-place from stable to current 2026 ---------------------------------------------- 2027 <make sure you have good level 0 dumps> 2028 make buildworld [9] 2029 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2030 [1] 2031 <reboot in single user> [3] 2032 mergemaster -p [5] 2033 make installworld 2034 mergemaster -i [4] 2035 make delete-old [6] 2036 <reboot> 2037 2038 Make sure that you've read the UPDATING file to understand the 2039 tweaks to various things you need. At this point in the life 2040 cycle of current, things change often and you are on your own 2041 to cope. The defaults can also change, so please read ALL of 2042 the UPDATING entries. 2043 2044 Also, if you are tracking -current, you must be subscribed to 2045 freebsd-current@freebsd.org. Make sure that before you update 2046 your sources that you have read and understood all the recent 2047 messages there. If in doubt, please track -stable which has 2048 much fewer pitfalls. 2049 2050 [1] If you have third party modules, such as vmware, you 2051 should disable them at this point so they don't crash your 2052 system on reboot. 2053 2054 [3] From the bootblocks, boot -s, and then do 2055 fsck -p 2056 mount -u / 2057 mount -a 2058 cd src 2059 adjkerntz -i # if CMOS is wall time 2060 Also, when doing a major release upgrade, it is required that 2061 you boot into single user mode to do the installworld. 2062 2063 [4] Note: This step is non-optional. Failure to do this step 2064 can result in a significant reduction in the functionality of the 2065 system. Attempting to do it by hand is not recommended and those 2066 that pursue this avenue should read this file carefully, as well 2067 as the archives of freebsd-current and freebsd-hackers mailing lists 2068 for potential gotchas. The -U option is also useful to consider. 2069 See mergemaster(8) for more information. 2070 2071 [5] Usually this step is a noop. However, from time to time 2072 you may need to do this if you get unknown user in the following 2073 step. It never hurts to do it all the time. You may need to 2074 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2075 install) after the buildworld before this step if you last updated 2076 from current before 20130425 or from -stable before 20130430. 2077 2078 [6] This only deletes old files and directories. Old libraries 2079 can be deleted by "make delete-old-libs", but you have to make 2080 sure that no program is using those libraries anymore. 2081 2082 [8] In order to have a kernel that can run the 4.x binaries needed to 2083 do an installworld, you must include the COMPAT_FREEBSD4 option in 2084 your kernel. Failure to do so may leave you with a system that is 2085 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2086 required to run the 5.x binaries on more recent kernels. And so on 2087 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2088 2089 Make sure that you merge any new devices from GENERIC since the 2090 last time you updated your kernel config file. 2091 2092 [9] When checking out sources, you must include the -P flag to have 2093 cvs prune empty directories. 2094 2095 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2096 "?=" instead of the "=" assignment operator, so that buildworld can 2097 override the CPUTYPE if it needs to. 2098 2099 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2100 not on the command line, or in /etc/make.conf. buildworld will 2101 warn if it is improperly defined. 2102FORMAT: 2103 2104This file contains a list, in reverse chronological order, of major 2105breakages in tracking -current. It is not guaranteed to be a complete 2106list of such breakages, and only contains entries since October 10, 2007. 2107If you need to see UPDATING entries from before that date, you will need 2108to fetch an UPDATING file from an older FreeBSD release. 2109 2110Copyright information: 2111 2112Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2113 2114Redistribution, publication, translation and use, with or without 2115modification, in full or in part, in any form or format of this 2116document are permitted without further permission from the author. 2117 2118THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2119IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2120WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2121DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2122INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2123(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2124SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2125HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2126STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2127IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2128POSSIBILITY OF SUCH DAMAGE. 2129 2130Contact Warner Losh if you have any questions about your use of 2131this document. 2132 2133$FreeBSD: releng/10.0/UPDATING 274110 2014-11-04 23:31:17Z des $ 2134