UPDATING revision 273439
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 1920141022: p11 FreeBSD-EN-14:10.tzdata 20 21 Time zone data file update. [EN-14:10] 22 2320141021: p10 FreeBSD-SA-14:20.rtsold 24 FreeBSD-SA-14:21.routed 25 FreeBSD-SA-14:22.namei 26 FreeBSD-SA-14:23.openssl 27 28 Fix rtsold(8) remote buffer overflow vulnerability. [SA-14:20] 29 30 Fix routed(8) remote denial of service vulnerability. [SA-14:21] 31 32 Fix memory leak in sandboxed namei lookup. [SA-14:22] 33 34 Fix OpenSSL multiple vulnerabilities. [SA-14:23] 35 3620140916: p9 FreeBSD-SA-14:19.tcp 37 Fix Denial of Service in TCP packet processing. [SA-14:19] 38 3920140909: p8 FreeBSD-SA-14:18.openssl 40 Fix OpenSSL multiple vulnerabilities. [SA-14:18] 41 4220140708: p7 FreeBSD-SA-14:17.kmem 43 Fix kernel memory disclosure in control messages and SCTP 44 notifications. [SA-14:17] 45 4620140624: p6 FreeBSD-SA-14:15.iconv 47 FreeBSD-SA-14:16.file 48 FreeBSD-EN-14:07.pmap 49 50 Fix iconv(3) NULL pointer dereference and out-of-bounds array 51 access. [SA-14:15] 52 53 Fix multiple vulnerabilities in file(1) and libmagic(3). 54 [SA-14:16] 55 56 Worked around bug with PCID implementation. [EN-14:07] 57 5820140605: p5 FreeBSD-SA-14:14.openssl 59 Fix OpenSSL multiple vulnerabilities. [SA-14:14] 60 6120140603: p4 FreeBSD-SA-14:11.sendmail 62 FreeBSD-SA-14:13.pam 63 FreeBSD-EN-14:06.exec 64 65 Fix sendmail improper close-on-exec flag handling. [SA-14:11] 66 67 Fix incorrect error handling in PAM policy parser. [SA-14:13] 68 69 Fix triple-fault when executing from a threaded process. 70 [EN-14:06] 71 7220140513: p3 FreeBSD-SA-14:10.openssl 73 FreeBSD-EN-14:05.ciss 74 75 Fix OpenSSL NULL pointer deference vulnerability. [SA-14:10] 76 77 Fix data corruption with ciss(4). [EN-14:05] 78 7920140430: p2 FreeBSD-SA-14:07.devfs 80 FreeBSD-SA-14:08.tcp 81 FreeBSD-SA-14:09.openssl 82 83 Fix devfs rules not applied by default for jails. [SA-14:07] 84 85 Fix TCP reassembly vulnerability. [SA-14:08] 86 87 Fix OpenSSL use-after-free vulnerability. [SA-14:09] 88 8920140408: p1 FreeBSD-SA-14:05.nfsserver 90 FreeBSD-SA-14:06.openssl 91 Fix deadlock in the NFS server. [SA-14:05] 92 93 Fix multiple vulnerabilities in OpenSSL. [SA-14:06] 94 9520131223: 96 The behavior of gss_pseudo_random() for the krb5 mechanism 97 has changed, for applications requesting a longer random string 98 than produced by the underlying enctype's pseudo-random() function. 99 In particular, the random string produced from a session key of 100 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 101 be different at the 17th octet and later, after this change. 102 The counter used in the PRF+ construction is now encoded as a 103 big-endian integer in accordance with RFC 4402. 104 10520131031: 106 The default version of mtree is nmtree which is obtained from 107 NetBSD. The output is generally the same, but may vary 108 slightly. If you found you need identical output adding 109 "-F freebsd9" to the command line should do the trick. For the 110 time being, the old mtree is available as fmtree. 111 11220131014: 113 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 114 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 115 1.1.4_8 and verify bsdyml not linked in, before running "make 116 delete-old-libs": 117 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 118 or 119 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 120 12120131010: 122 The rc.d/jail script has been updated to support jail(8) 123 configuration file. The "jail_<jname>_*" rc.conf(5) variables 124 for per-jail configuration are automatically converted to 125 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 126 This is transparently backward compatible. See below about some 127 incompatibilities and rc.conf(5) manual page for more details. 128 129 These variables are now deprecated in favor of jail(8) configuration 130 file. One can use "rc.d/jail config <jname>" command to generate 131 a jail(8) configuration file in /var/run/jail.<jname>.conf without 132 running the jail(8) utility. The default pathname of the 133 configuration file is /etc/jail.conf and can be specified by 134 using $jail_conf or $jail_<jname>_conf variables. 135 136 Please note that jail_devfs_ruleset accepts an integer at 137 this moment. Please consider to rewrite the ruleset name 138 with an integer. 139 14020130930: 141 BIND has been removed from the base system. If all you need 142 is a local resolver, simply enable and start the local_unbound 143 service instead. Otherwise, several versions of BIND are 144 available in the ports tree. The dns/bind99 port is one example. 145 146 With this change, nslookup(1) and dig(1) are no longer in the base 147 system. Users should instead use host(1) and drill(1) which are 148 in the base system. Alternatively, nslookup and dig can 149 be obtained by installing the dns/bind-tools port. 150 15120130916: 152 With the addition of unbound(8), a new unbound user is now 153 required during installworld. "mergemaster -p" can be used to 154 add the user prior to installworld, as documented in the handbook. 155 15620130911: 157 OpenSSH is now built with DNSSEC support, and will by default 158 silently trust signed SSHFP records. This can be controlled with 159 the VerifyHostKeyDNS client configuration setting. DNSSEC support 160 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 161 16220130906: 163 The GNU Compiler Collection and C++ standard library (libstdc++) 164 are no longer built by default on platforms where clang is the system 165 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 166 options in src.conf. 167 16820130905: 169 The PROCDESC kernel option is now part of the GENERIC kernel 170 configuration and is required for the rwhod(8) to work. 171 If you are using custom kernel configuration, you should include 172 'options PROCDESC'. 173 17420130905: 175 The API and ABI related to the Capsicum framework was modified 176 in backward incompatible way. The userland libraries and programs 177 have to be recompiled to work with the new kernel. This includes the 178 following libraries and programs, but the whole buildworld is 179 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 180 kdump, procstat, rwho, rwhod, uniq. 181 18220130903: 183 AES-NI intrinsic support has been added to gcc. The AES-NI module 184 has been updated to use this support. A new gcc is required to build 185 the aesni module on both i386 and amd64. 186 18720130821: 188 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 189 Thus "device padlock_rng" and "device rdrand_rng" should be 190 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 191 19220130813: 193 WITH_ICONV has been split into two feature sets. WITH_ICONV now 194 enables just the iconv* functionality and is now on by default. 195 WITH_LIBICONV_COMPAT enables the libiconv api and link time 196 compatability. Set WITHOUT_ICONV to build the old way. 197 If you have been using WITH_ICONV before, you will very likely 198 need to turn on WITH_LIBICONV_COMPAT. 199 20020130806: 201 INVARIANTS option now enables DEBUG for code with OpenSolaris and 202 Illumos origin, including ZFS. If you have INVARIANTS in your 203 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 204 explicitly. 205 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 206 locks if WITNESS option was set. Because that generated a lot of 207 witness(9) reports and all of them were believed to be false 208 positives, this is no longer done. New option OPENSOLARIS_WITNESS 209 can be used to achieve the previous behavior. 210 21120130806: 212 Timer values in IPv6 data structures now use time_uptime instead 213 of time_second. Although this is not a user-visible functional 214 change, userland utilities which directly use them---ndp(8), 215 rtadvd(8), and rtsold(8) in the base system---need to be updated 216 to r253970 or later. 217 21820130802: 219 find -delete can now delete the pathnames given as arguments, 220 instead of only files found below them or if the pathname did 221 not contain any slashes. Formerly, the following error message 222 would result: 223 224 find: -delete: <path>: relative path potentially not safe 225 226 Deleting the pathnames given as arguments can be prevented 227 without error messages using -mindepth 1 or by changing 228 directory and passing "." as argument to find. This works in the 229 old as well as the new version of find. 230 23120130726: 232 Behavior of devfs rules path matching has been changed. 233 Pattern is now always matched against fully qualified devfs 234 path and slash characters must be explicitly matched by 235 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 236 subdirectories must be reviewed. 237 23820130716: 239 The default ARM ABI has changed to the ARM EABI. The old ABI is 240 incompatible with the ARM EABI and all programs and modules will 241 need to be rebuilt to work with a new kernel. 242 243 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 244 245 NOTE: Support for the old ABI will be removed in the future and 246 users are advised to upgrade. 247 24820130709: 249 pkg_install has been disconnected from the build if you really need it 250 you should add WITH_PKGTOOLS in your src.conf(5). 251 25220130709: 253 Most of network statistics structures were changed to be able 254 keep 64-bits counters. Thus all tools, that work with networking 255 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 256 25720130629: 258 Fix targets that run multiple make's to use && rather than ; 259 so that subsequent steps depend on success of previous. 260 261 NOTE: if building 'universe' with -j* on stable/8 or stable/9 262 it would be better to start the build using bmake, to avoid 263 overloading the machine. 264 26520130618: 266 Fix a bug that allowed a tracing process (e.g. gdb) to write 267 to a memory-mapped file in the traced process's address space 268 even if neither the traced process nor the tracing process had 269 write access to that file. 270 27120130615: 272 CVS has been removed from the base system. An exact copy 273 of the code is available from the devel/cvs port. 274 27520130613: 276 Some people report the following error after the switch to bmake: 277 278 make: illegal option -- J 279 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 280 ... 281 *** [buildworld] Error code 2 282 283 this likely due to an old instance of make in 284 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 285 which src/Makefile will use that blindly, if it exists, so if 286 you see the above error: 287 288 rm -rf `make -V MAKEPATH` 289 290 should resolve it. 291 29220130516: 293 Use bmake by default. 294 Whereas before one could choose to build with bmake via 295 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 296 make. The goal is to remove these knobs for 10-RELEASE. 297 298 It is worth noting that bmake (like gmake) treats the command 299 line as the unit of failure, rather than statements within the 300 command line. Thus '(cd some/where && dosomething)' is safer 301 than 'cd some/where; dosomething'. The '()' allows consistent 302 behavior in parallel build. 303 30420130429: 305 Fix a bug that allows NFS clients to issue READDIR on files. 306 30720130426: 308 The WITHOUT_IDEA option has been removed because 309 the IDEA patent expired. 310 31120130426: 312 The sysctl which controls TRIM support under ZFS has been renamed 313 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 314 enabled by default. 315 31620130425: 317 The mergemaster command now uses the default MAKEOBJDIRPREFIX 318 rather than creating it's own in the temporary directory in 319 order allow access to bootstrapped versions of tools such as 320 install and mtree. When upgrading from version of FreeBSD where 321 the install command does not support -l, you will need to 322 install a new mergemaster command if mergemaster -p is required. 323 This can be accomplished with the command (cd src/usr.sbin/mergemaster 324 && make install). 325 32620130404: 327 Legacy ATA stack, disabled and replaced by new CAM-based one since 328 FreeBSD 9.0, completely removed from the sources. Kernel modules 329 atadisk and atapi*, user-level tools atacontrol and burncd are 330 removed. Kernel option `options ATA_CAM` is now permanently enabled 331 and removed. 332 33320130319: 334 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 335 and socketpair(2). Software, in particular Kerberos, may 336 automatically detect and use these during building. The resulting 337 binaries will not work on older kernels. 338 33920130308: 340 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 341 information, see the respective 20130304 entry). 342 34320130304: 344 Recent commits to callout(9) changed the size of struct callout, 345 so the KBI is probably heavily disturbed. Also, some functions 346 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 347 by macros. Every kernel module using it won't load, so rebuild 348 is requested. 349 350 The ctl device has been re-enabled in GENERIC for i386 and amd64, 351 but does not initialize by default (because of the new CTL_DISABLE 352 option) to save memory. To re-enable it, remove the CTL_DISABLE 353 option from the kernel config file or set kern.cam.ctl.disable=0 354 in /boot/loader.conf. 355 35620130301: 357 The ctl device has been disabled in GENERIC for i386 and amd64. 358 This was done due to the extra memory being allocated at system 359 initialisation time by the ctl driver which was only used if 360 a CAM target device was created. This makes a FreeBSD system 361 unusable on 128MB or less of RAM. 362 36320130208: 364 A new compression method (lz4) has been merged to -HEAD. Please 365 refer to zpool-features(7) for more information. 366 367 Please refer to the "ZFS notes" section of this file for information 368 on upgrading boot ZFS pools. 369 37020130129: 371 A BSD-licensed patch(1) variant has been added and is installed 372 as bsdpatch, being the GNU version the default patch. 373 To inverse the logic and use the BSD-licensed one as default, 374 while having the GNU version installed as gnupatch, rebuild 375 and install world with the WITH_BSD_PATCH knob set. 376 37720130121: 378 Due to the use of the new -l option to install(1) during build 379 and install, you must take care not to directly set the INSTALL 380 make variable in your /etc/make.conf, /etc/src.conf, or on the 381 command line. If you wish to use the -C flag for all installs 382 you may be able to add INSTALL+=-C to /etc/make.conf or 383 /etc/src.conf. 384 38520130118: 386 The install(1) option -M has changed meaning and now takes an 387 argument that is a file or path to append logs to. In the 388 unlikely event that -M was the last option on the command line 389 and the command line contained at least two files and a target 390 directory the first file will have logs appended to it. The -M 391 option served little practical purpose in the last decade so its 392 use is expected to be extremely rare. 393 39420121223: 395 After switching to Clang as the default compiler some users of ZFS 396 on i386 systems started to experience stack overflow kernel panics. 397 Please consider using 'options KSTACK_PAGES=4' in such configurations. 398 39920121222: 400 GEOM_LABEL now mangles label names read from file system metadata. 401 Mangling affect labels containing spaces, non-printable characters, 402 '%' or '"'. Device names in /etc/fstab and other places may need to 403 be updated. 404 40520121217: 406 By default, only the 10 most recent kernel dumps will be saved. To 407 restore the previous behaviour (no limit on the number of kernel dumps 408 stored in the dump directory) add the following line to /etc/rc.conf: 409 410 savecore_flags="" 411 41220121201: 413 With the addition of auditdistd(8), a new auditdistd user is now 414 required during installworld. "mergemaster -p" can be used to 415 add the user prior to installworld, as documented in the handbook. 416 41720121117: 418 The sin6_scope_id member variable in struct sockaddr_in6 is now 419 filled by the kernel before passing the structure to the userland via 420 sysctl or routing socket. This means the KAME-specific embedded scope 421 id in sin6_addr.s6_addr[2] is always cleared in userland application. 422 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 423 __FreeBSD_version is bumped to 1000025. 424 42520121105: 426 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 427 This means that the world and kernel will be compiled with clang 428 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 429 and /usr/bin/cpp. To disable this behavior and revert to building 430 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 431 of current may need to bootstrap WITHOUT_CLANG first if the clang 432 build fails (its compatibility window doesn't extend to the 9 stable 433 branch point). 434 43520121102: 436 The IPFIREWALL_FORWARD kernel option has been removed. Its 437 functionality now turned on by default. 438 43920121023: 440 The ZERO_COPY_SOCKET kernel option has been removed and 441 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 442 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 443 mechanism which is not safe and may result in kernel crashes. 444 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 445 driver supports disposeable external page sized mbuf storage. 446 Proper replacements for both zero-copy mechanisms are under 447 consideration and will eventually lead to complete removal 448 of the two kernel options. 449 45020121023: 451 The IPv4 network stack has been converted to network byte 452 order. The following modules need to be recompiled together 453 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 454 pf(4), ipfw(4), ng_ipfw(4), stf(4). 455 45620121022: 457 Support for non-MPSAFE filesystems was removed from VFS. The 458 VFS_VERSION was bumped, all filesystem modules shall be 459 recompiled. 460 46120121018: 462 All the non-MPSAFE filesystems have been disconnected from 463 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 464 portalfs, smbfs, xfs. 465 46620121016: 467 The interface cloning API and ABI has changed. The following 468 modules need to be recompiled together with kernel: 469 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 470 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 471 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 472 47320121015: 474 The sdhci driver was split in two parts: sdhci (generic SD Host 475 Controller logic) and sdhci_pci (actual hardware driver). 476 No kernel config modifications are required, but if you 477 load sdhc as a module you must switch to sdhci_pci instead. 478 47920121014: 480 Import the FUSE kernel and userland support into base system. 481 48220121013: 483 The GNU sort(1) program has been removed since the BSD-licensed 484 sort(1) has been the default for quite some time and no serious 485 problems have been reported. The corresponding WITH_GNU_SORT 486 knob has also gone. 487 48820121006: 489 The pfil(9) API/ABI for AF_INET family has been changed. Packet 490 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 491 with new kernel. 492 49320121001: 494 The net80211(4) ABI has been changed to allow for improved driver 495 PS-POLL and power-save support. All wireless drivers need to be 496 recompiled to work with the new kernel. 497 49820120913: 499 The random(4) support for the VIA hardware random number 500 generator (`PADLOCK') is no longer enabled unconditionally. 501 Add the padlock_rng device in the custom kernel config if 502 needed. The GENERIC kernels on i386 and amd64 do include the 503 device, so the change only affects the custom kernel 504 configurations. 505 50620120908: 507 The pf(4) packet filter ABI has been changed. pfctl(8) and 508 snmp_pf module need to be recompiled to work with new kernel. 509 51020120828: 511 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 512 to -HEAD. Pools that have empty_bpobj in active state can not be 513 imported read-write with ZFS implementations that do not support 514 this feature. For more information read the zpool-features(5) 515 manual page. 516 51720120727: 518 The sparc64 ZFS loader has been changed to no longer try to auto- 519 detect ZFS providers based on diskN aliases but now requires these 520 to be explicitly listed in the OFW boot-device environment variable. 521 52220120712: 523 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 524 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 525 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 526 52720120712: 528 The following sysctls and tunables have been renamed for consistency 529 with other variables: 530 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 531 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 532 53320120628: 534 The sort utility has been replaced with BSD sort. For now, GNU sort 535 is also available as "gnusort" or the default can be set back to 536 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 537 installed as "bsdsort". 538 53920120611: 540 A new version of ZFS (pool version 5000) has been merged to -HEAD. 541 Starting with this version the old system of ZFS pool versioning 542 is superseded by "feature flags". This concept enables forward 543 compatibility against certain future changes in functionality of ZFS 544 pools. The first read-only compatible "feature flag" for ZFS pools 545 is named "com.delphix:async_destroy". For more information 546 read the new zpool-features(5) manual page. 547 Please refer to the "ZFS notes" section of this file for information 548 on upgrading boot ZFS pools. 549 55020120417: 551 The malloc(3) implementation embedded in libc now uses sources imported 552 as contrib/jemalloc. The most disruptive API change is to 553 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 554 delete it prior to installworld, and optionally re-create it using the 555 new format after rebooting. See malloc.conf(5) for details 556 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 557 NAMESPACE section). 558 55920120328: 560 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 561 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 562 now spelled mips. This is to aid compatibility with third-party 563 software that expects this naming scheme in uname(3). Little-endian 564 settings are unchanged. If you are updating a big-endian mips64 machine 565 from before this change, you may need to set MACHINE_ARCH=mips64 in 566 your environment before the new build system will recognize your machine. 567 56820120306: 569 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 570 platforms. 571 57220120229: 573 Now unix domain sockets behave "as expected" on nullfs(5). Previously 574 nullfs(5) did not pass through all behaviours to the underlying layer, 575 as a result if we bound to a socket on the lower layer we could connect 576 only to the lower path; if we bound to the upper layer we could connect 577 only to the upper path. The new behavior is one can connect to both the 578 lower and the upper paths regardless what layer path one binds to. 579 58020120211: 581 The getifaddrs upgrade path broken with 20111215 has been restored. 582 If you have upgraded in between 20111215 and 20120209 you need to 583 recompile libc again with your kernel. You still need to recompile 584 world to be able to configure CARP but this restriction already 585 comes from 20111215. 586 58720120114: 588 The set_rcvar() function has been removed from /etc/rc.subr. All 589 base and ports rc.d scripts have been updated, so if you have a 590 port installed with a script in /usr/local/etc/rc.d you can either 591 hand-edit the rcvar= line, or reinstall the port. 592 593 An easy way to handle the mass-update of /etc/rc.d: 594 rm /etc/rc.d/* && mergemaster -i 595 59620120109: 597 panic(9) now stops other CPUs in the SMP systems, disables interrupts 598 on the current CPU and prevents other threads from running. 599 This behavior can be reverted using the kern.stop_scheduler_on_panic 600 tunable/sysctl. 601 The new behavior can be incompatible with kern.sync_on_panic. 602 60320111215: 604 The carp(4) facility has been changed significantly. Configuration 605 of the CARP protocol via ifconfig(8) has changed, as well as format 606 of CARP events submitted to devd(8) has changed. See manual pages 607 for more information. The arpbalance feature of carp(4) is currently 608 not supported anymore. 609 610 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 611 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 612 need to be recompiled. 613 61420111122: 615 The acpi_wmi(4) status device /dev/wmistat has been renamed to 616 /dev/wmistat0. 617 61820111108: 619 The option VFS_ALLOW_NONMPSAFE option has been added in order to 620 explicitely support non-MPSAFE filesystems. 621 It is on by default for all supported platform at this present 622 time. 623 62420111101: 625 The broken amd(4) driver has been replaced with esp(4) in the amd64, 626 i386 and pc98 GENERIC kernel configuration files. 627 62820110930: 629 sysinstall has been removed 630 63120110923: 632 The stable/9 branch created in subversion. This corresponds to the 633 RELENG_9 branch in CVS. 634 63520110913: 636 This commit modifies vfs_register() so that it uses a hash 637 calculation to set vfc_typenum, which is enabled by default. 638 The first time a system is booted after this change, the 639 vfc_typenum values will change for all file systems. The 640 main effect of this is a change to the NFS server file handles 641 for file systems that use vfc_typenum in their fsid, such as ZFS. 642 It will, however, prevent vfc_typenum from changing when file 643 systems are loaded in a different order for subsequent reboots. 644 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 645 until you are ready to remount all NFS clients after a reboot. 646 64720110828: 648 Bump the shared library version numbers for libraries that 649 do not use symbol versioning, have changed the ABI compared 650 to stable/8 and which shared library version was not bumped. 651 Done as part of 9.0-RELEASE cycle. 652 65320110815: 654 During the merge of Capsicum features, the fget(9) KPI was modified. 655 This may require the rebuilding of out-of-tree device drivers -- 656 issues have been reported specifically with the nVidia device driver. 657 __FreeBSD_version is bumped to 900041. 658 659 Also, there is a period between 20110811 and 20110814 where the 660 special devices /dev/{stdin,stdout,stderr} did not work correctly. 661 Building world from a kernel during that window may not work. 662 66320110628: 664 The packet filter (pf) code has been updated to OpenBSD 4.5. 665 You need to update userland tools to be in sync with kernel. 666 This update breaks backward compatibility with earlier pfsync(4) 667 versions. Care must be taken when updating redundant firewall setups. 668 66920110608: 670 The following sysctls and tunables are retired on x86 platforms: 671 machdep.hlt_cpus 672 machdep.hlt_logical_cpus 673 The following sysctl is retired: 674 machdep.hyperthreading_allowed 675 The sysctls were supposed to provide a way to dynamically offline and 676 online selected CPUs on x86 platforms, but the implementation has not 677 been reliable especially with SCHED_ULE scheduler. 678 machdep.hyperthreading_allowed tunable is still available to ignore 679 hyperthreading CPUs at OS level. 680 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 681 where X is an APIC ID of a CPU. Be advised, though, that disabling 682 CPUs in non-uniform fashion will result in non-uniform topology and 683 may lead to sub-optimal system performance with SCHED_ULE, which is 684 a default scheduler. 685 68620110607: 687 cpumask_t type is retired and cpuset_t is used in order to describe 688 a mask of CPUs. 689 69020110531: 691 Changes to ifconfig(8) for dynamic address family detection mandate 692 that you are running a kernel of 20110525 or later. Make sure to 693 follow the update procedure to boot a new kernel before installing 694 world. 695 69620110513: 697 Support for sun4v architecture is officially dropped 698 69920110503: 700 Several KPI breaking changes have been committed to the mii(4) layer, 701 the PHY drivers and consequently some Ethernet drivers using mii(4). 702 This means that miibus.ko and the modules of the affected Ethernet 703 drivers need to be recompiled. 704 705 Note to kernel developers: Given that the OUI bit reversion problem 706 was fixed as part of these changes all mii(4) commits related to OUIs, 707 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 708 handling, no longer can be merged verbatim to stable/8 and previous 709 branches. 710 71120110430: 712 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 713 into their kernel configurations along with 'device pci'. 714 71520110427: 716 The default NFS client is now the new NFS client, so fstype "newnfs" 717 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 718 Although mounts via fstype "nfs" will usually work without userland 719 changes, it is recommended that the mount(8) and mount_nfs(8) 720 commands be rebuilt from sources and that a link to mount_nfs called 721 mount_oldnfs be created. The new client is compiled into the 722 kernel with "options NFSCL" and this is needed for diskless root 723 file systems. The GENERIC kernel configs have been changed to use 724 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 725 To use the regular/old client, you can "mount -t oldnfs ...". For 726 a diskless root file system, you must also include a line like: 727 728 vfs.root.mountfrom="oldnfs:" 729 730 in the boot/loader.conf on the root fs on the NFS server to make 731 a diskless root fs use the old client. 732 73320110424: 734 The GENERIC kernels for all architectures now default to the new 735 CAM-based ATA stack. It means that all legacy ATA drivers were 736 removed and replaced by respective CAM drivers. If you are using 737 ATA device names in /etc/fstab or other places, make sure to update 738 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 739 where 'Y's are the sequential numbers starting from zero for each type 740 in order of detection, unless configured otherwise with tunables, 741 see cam(4)). There will be symbolic links created in /dev/ to map 742 old adX devices to the respective adaY. They should provide basic 743 compatibility for file systems mounting in most cases, but they do 744 not support old user-level APIs and do not have respective providers 745 in GEOM. Consider using updated management tools with new device names. 746 747 It is possible to load devices ahci, ata, siis and mvs as modules, 748 but option ATA_CAM should remain in kernel configuration to make ata 749 module work as CAM driver supporting legacy ATA controllers. Device ata 750 still can be used in modular fashion (atacore + ...). Modules atadisk 751 and atapi* are not used and won't affect operation in ATA_CAM mode. 752 Note that to use CAM-based ATA kernel should include CAM devices 753 scbus, pass, da (or explicitly ada), cd and optionally others. All of 754 them are parts of the cam module. 755 756 ataraid(4) functionality is now supported by the RAID GEOM class. 757 To use it you can load geom_raid kernel module and use graid(8) tool 758 for management. Instead of /dev/arX device names, use /dev/raid/rX. 759 760 No kernel config options or code have been removed, so if a problem 761 arises, please report it and optionally revert to the old ATA stack. 762 In order to do it you can remove from the kernel config: 763 options ATA_CAM 764 device ahci 765 device mvs 766 device siis 767 , and instead add back: 768 device atadisk # ATA disk drives 769 device ataraid # ATA RAID drives 770 device atapicd # ATAPI CDROM drives 771 device atapifd # ATAPI floppy drives 772 device atapist # ATAPI tape drives 773 77420110423: 775 The default NFS server has been changed to the new server, which 776 was referred to as the experimental server. If you need to switch 777 back to the old NFS server, you must now put the "-o" option on 778 both the mountd and nfsd commands. This can be done using the 779 mountd_flags and nfs_server_flags rc.conf variables until an 780 update to the rc scripts is committed, which is coming soon. 781 78220110418: 783 The GNU Objective-C runtime library (libobjc), and other Objective-C 784 related components have been removed from the base system. If you 785 require an Objective-C library, please use one of the available ports. 786 78720110331: 788 ath(4) has been split into bus- and device- modules. if_ath contains 789 the HAL, the TX rate control and the network device code. if_ath_pci 790 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 791 contains the AHB glue. Users need to load both if_ath_pci and if_ath 792 in order to use ath on everything else. 793 794 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 795 need to load if_ath and if_ath_pci for ath(4) operation. 796 79720110314: 798 As part of the replacement of sysinstall, the process of building 799 release media has changed significantly. For details, please re-read 800 release(7), which has been updated to reflect the new build process. 801 80220110218: 803 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 804 is the last available version under GPLv2. It brings a number of new 805 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 806 4.1 and SSE 4.2), better support for powerpc64, a number of new 807 directives, and lots of other small improvements. See the ChangeLog 808 file in contrib/binutils for the full details. 809 81020110218: 811 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 812 compliant, and will now use half of hash for authentication. 813 This will break interoperability with all stacks (including all 814 actual FreeBSD versions) who implement 815 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 816 authentication). 817 The only workaround with such peers is to use another HMAC 818 algorithm for IPsec ("phase 2") authentication. 819 82020110207: 821 Remove the uio_yield prototype and symbol. This function has 822 been misnamed since it was introduced and should not be 823 globally exposed with this name. The equivalent functionality 824 is now available using kern_yield(curthread->td_user_pri). 825 The function remains undocumented. 826 82720110112: 828 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 829 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 830 for scalar sysctls is defined but disabled. Code that needs 831 UQUAD to pass the type checking that must compile on older 832 systems where the define is not present can check against 833 __FreeBSD_version >= 900030. 834 835 The system dialog(1) has been replaced with a new version previously 836 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 837 with the previous version, but the libdialog associated with it has 838 a largely incompatible API. As such, the original version of libdialog 839 will be kept temporarily as libodialog, until its base system consumers 840 are replaced or updated. Bump __FreeBSD_version to 900030. 841 84220110103: 843 If you are trying to run make universe on a -stable system, and you get 844 the following warning: 845 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 846 unknown. config(8) likely too old." 847 or something similar to it, then you must upgrade your -stable system 848 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 849 stable/8) or build the config from the latest stable/8 branch and 850 install it on your system. 851 852 Prior to this date, building a current universe on 8-stable system from 853 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 854 error in the first kernel build phase. A new config on those old 855 systems will fix that problem for older versions of -current. 856 85720101228: 858 The TCP stack has been modified to allow Khelp modules to interact with 859 it via helper hook points and store per-connection data in the TCP 860 control block. Bump __FreeBSD_version to 900029. User space tools that 861 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 862 be recompiled. 863 86420101114: 865 Generic IEEE 802.3 annex 31B full duplex flow control support has been 866 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 867 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 868 to take advantage of it instead of using custom implementations. This 869 means that these drivers now no longer unconditionally advertise 870 support for flow control but only do so if flow control is a selected 871 media option. This was implemented in the generic support that way in 872 order to allow flow control to be switched on and off via ifconfig(8) 873 with the PHY specific default to typically off in order to protect 874 from unwanted effects. Consequently, if you used flow control with 875 one of the above mentioned drivers you now need to explicitly enable 876 it, for example via: 877 ifconfig bge0 media auto mediaopt flowcontrol 878 879 Along with the above mentioned changes generic support for setting 880 1000baseT master mode also has been added and brgphy(4), ciphy(4), 881 e1000phy(4) as well as ip1000phy(4) have been converted to take 882 advantage of it. This means that these drivers now no longer take the 883 link0 parameter for selecting master mode but the master media option 884 has to be used instead, for example like in the following: 885 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 886 887 Selection of master mode now is also available with all other PHY 888 drivers supporting 1000baseT. 889 89020101111: 891 The TCP stack has received a significant update to add support for 892 modularised congestion control and generally improve the clarity of 893 congestion control decisions. Bump __FreeBSD_version to 900025. User 894 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 895 sockstat) need to be recompiled. 896 89720101002: 898 The man(1) utility has been replaced by a new version that no longer 899 uses /etc/manpath.config. Please consult man.conf(5) for how to 900 migrate local entries to the new format. 901 90220100928: 903 The copyright strings printed by login(1) and sshd(8) at the time of a 904 new connection have been removed to follow other operating systems and 905 upstream sshd. 906 90720100915: 908 A workaround for a fixed ld bug has been removed in kernel code, 909 so make sure that your system ld is built from sources after 910 revision 210245 from 2010-07-19 (r211583 if building head kernel 911 on stable/8, r211584 for stable/7; both from 2010-08-21). 912 A symptom of incorrect ld version is different addresses for 913 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 914 91520100913: 916 The $ipv6_prefer variable in rc.conf(5) has been split into 917 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 918 919 The $ip6addrctl_policy is a variable to choose a pre-defined 920 address selection policy set by ip6addrctl(8). A value 921 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 922 default is "AUTO". 923 924 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 925 flag (see an entry of 20090926) is set on an interface with no 926 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 927 security reason. If you want IPv6 link-local address on all 928 interfaces by default, set this to "YES". 929 930 The old ipv6_prefer="YES" is equivalent to 931 ipv6_activate_all_interfaces="YES" and 932 ip6addrctl_policy="ipv6_prefer". 933 93420100913: 935 DTrace has grown support for userland tracing. Due to this, DTrace is 936 now i386 and amd64 only. 937 dtruss(1) is now installed by default on those systems and a new 938 kernel module is needed for userland tracing: fasttrap. 939 No changes to your kernel config file are necessary to enable 940 userland tracing, but you might consider adding 'STRIP=' and 941 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 942 to have informative userland stack traces in DTrace (ustack). 943 94420100725: 945 The acpi_aiboost(4) driver has been removed in favor of the new 946 aibs(4) driver. You should update your kernel configuration file. 947 94820100722: 949 BSD grep has been imported to the base system and it is built by 950 default. It is completely BSD licensed, highly GNU-compatible, uses 951 less memory than its GNU counterpart and has a small codebase. 952 However, it is slower than its GNU counterpart, which is mostly 953 noticeable for larger searches, for smaller ones it is measurable 954 but not significant. The reason is complex, the most important factor 955 is that we lack a modern and efficient regex library and GNU 956 overcomes this by optimizing the searches internally. Future work 957 on improving the regex performance is planned, for the meantime, 958 users that need better performance, can build GNU grep instead by 959 setting the WITH_GNU_GREP knob. 960 96120100713: 962 Due to the import of powerpc64 support, all existing powerpc kernel 963 configuration files must be updated with a machine directive like this: 964 machine powerpc powerpc 965 966 In addition, an updated config(8) is required to build powerpc kernels 967 after this change. 968 96920100713: 970 A new version of ZFS (version 15) has been merged to -HEAD. 971 This version uses a python library for the following subcommands: 972 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 973 For full functionality of these commands the following port must 974 be installed: sysutils/py-zfs 975 97620100429: 977 'vm_page's are now hashed by physical address to an array of mutexes. 978 Currently this is only used to serialize access to hold_count. Over 979 time the page queue mutex will be peeled away. This changes the size 980 of pmap on every architecture. And requires all callers of vm_page_hold 981 and vm_page_unhold to be updated. 982 98320100402: 984 WITH_CTF can now be specified in src.conf (not recommended, there 985 are some problems with static executables), make.conf (would also 986 affect ports which do not use GNU make and do not override the 987 compile targets) or in the kernel config (via "makeoptions 988 WITH_CTF=yes"). 989 When WITH_CTF was specified there before this was silently ignored, 990 so make sure that WITH_CTF is not used in places which could lead 991 to unwanted behavior. 992 99320100311: 994 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 995 to allow 32-bit compatibility on non-x86 platforms. All kernel 996 configurations on amd64 and ia64 platforms using these options must 997 be modified accordingly. 998 99920100113: 1000 The utmp user accounting database has been replaced with utmpx, 1001 the user accounting interface standardized by POSIX. 1002 Unfortunately the semantics of utmp and utmpx don't match, 1003 making it practically impossible to support both interfaces. 1004 The user accounting database is used by tools like finger(1), 1005 last(1), talk(1), w(1) and ac(8). 1006 1007 All applications in the base system use utmpx. This means only 1008 local binaries (e.g. from the ports tree) may still use these 1009 utmp database files. These applications must be rebuilt to make 1010 use of utmpx. 1011 1012 After the system has been upgraded, it is safe to remove the old 1013 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1014 assuming their contents is of no importance anymore. Old wtmp 1015 databases can only be used by last(1) and ac(8) after they have 1016 been converted to the new format using wtmpcvt(1). 1017 101820100108: 1019 Introduce the kernel thread "deadlock resolver" (which can be enabled 1020 via the DEADLKRES option, see NOTES for more details) and the 1021 sleepq_type() function for sleepqueues. 1022 102320091202: 1024 The rc.firewall and rc.firewall6 were unified, and 1025 rc.firewall6 and rc.d/ip6fw were removed. 1026 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1027 variables are obsoleted. Instead, the following new rc 1028 variables are added to rc.d/ipfw: 1029 1030 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1031 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1032 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1033 1034 The meanings correspond to the relevant IPv4 variables. 1035 103620091125: 1037 8.0-RELEASE. 1038 103920091113: 1040 The default terminal emulation for syscons(4) has been changed 1041 from cons25 to xterm on all platforms except pc98. This means 1042 that the /etc/ttys file needs to be updated to ensure correct 1043 operation of applications on the console. 1044 1045 The terminal emulation style can be toggled per window by using 1046 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1047 options can be used to change the compile-time default back to 1048 cons25. 1049 1050 To prevent graphical artifacts, make sure the TERM environment 1051 variable is set to match the terminal emulation that is being 1052 performed by syscons(4). 1053 105420091109: 1055 The layout of the structure ieee80211req_scan_result has changed. 1056 Applications that require wireless scan results (e.g. ifconfig(8)) 1057 from net80211 need to be recompiled. 1058 1059 Applications such as wpa_supplicant(8) may require a full world 1060 build without using NO_CLEAN in order to get synchronized with the 1061 new structure. 1062 106320091025: 1064 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1065 There's one kernel module for each firmware. Adding "device iwnfw" 1066 to the kernel configuration file means including all three firmware 1067 images inside the kernel. If you want to include just the one for 1068 your wireless card, use the devices iwn4965fw, iwn5000fw or 1069 iwn5150fw. 1070 107120090926: 1072 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1073 into rc.d/netif. The changes are the following: 1074 1075 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1076 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1077 Note that both variables need the "inet6" keyword at the head. 1078 1079 Do not set $ipv6_network_interfaces manually if you do not 1080 understand what you are doing. It is not needed in most cases. 1081 1082 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1083 they are obsolete. 1084 1085 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1086 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1087 1088 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1089 all configured interfaces have "inet6 accept_rtadv" in the 1090 $ifconfig_IF_ipv6. These are for backward compatibility. 1091 1092 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1093 functionality of interfaces with no corresponding 1094 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1095 and the default address selection policy of ip6addrctl(8) 1096 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1097 Note that if you want to configure IPv6 functionality on the 1098 disabled interfaces after boot, first you need to clear the flag by 1099 using ifconfig(8) like: 1100 1101 ifconfig em0 inet6 -ifdisabled 1102 1103 If YES, the default address selection policy is set as 1104 IPv6-preferred. 1105 1106 The default value of $ipv6_prefer is NO. 1107 1108 4. If your system need to receive Router Advertisement messages, 1109 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1110 scripts automatically invoke rtsol(8) when the interface becomes 1111 UP. The Router Advertisement messages are used for SLAAC 1112 (State-Less Address AutoConfiguration). 1113 111420090922: 1115 802.11s D3.03 support was committed. This is incompatible with the 1116 previous code, which was based on D3.0. 1117 111820090912: 1119 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1120 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1121 control whether accepting Router Advertisement messages or not. 1122 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1123 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1124 The ifconfig(8) utility now supports these flags. 1125 112620090910: 1127 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1128 mount(8) and -a option for df(1) to see them. 1129 113020090825: 1131 The old tunable hw.bus.devctl_disable has been superseded by 1132 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1133 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1134 is 1000. 1135 113620090813: 1137 Remove the option STOP_NMI. The default action is now to use NMI only 1138 for KDB via the newly introduced function stop_cpus_hard() and 1139 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1140 114120090803: 1142 The stable/8 branch created in subversion. This corresponds to the 1143 RELENG_8 branch in CVS. 1144 114520090719: 1146 Bump the shared library version numbers for all libraries that do not 1147 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1148 __FreeBSD_version to 800105. 1149 115020090714: 1151 Due to changes in the implementation of virtual network stack support, 1152 all network-related kernel modules must be recompiled. As this change 1153 breaks the ABI, bump __FreeBSD_version to 800104. 1154 115520090713: 1156 The TOE interface to the TCP syncache has been modified to remove 1157 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1158 The cxgb driver is the only TOE consumer affected by this change, and 1159 needs to be recompiled along with the kernel. As this change breaks 1160 the ABI, bump __FreeBSD_version to 800103. 1161 116220090712: 1163 Padding has been added to struct tcpcb, sackhint and tcpstat in 1164 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1165 maintaining the ABI. However, this change breaks the ABI, so bump 1166 __FreeBSD_version to 800102. User space tools that rely on the size of 1167 any of these structs (e.g. sockstat) need to be recompiled. 1168 116920090630: 1170 The NFS_LEGACYRPC option has been removed along with the old kernel 1171 RPC implementation that this option selected. Kernel configurations 1172 may need to be adjusted. 1173 117420090629: 1175 The network interface device nodes at /dev/net/<interface> have been 1176 removed. All ioctl operations can be performed the normal way using 1177 routing sockets. The kqueue functionality can generally be replaced 1178 with routing sockets. 1179 118020090628: 1181 The documentation from the FreeBSD Documentation Project (Handbook, 1182 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1183 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1184 118520090624: 1186 The ABI of various structures related to the SYSV IPC API have been 1187 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1188 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1189 800100. 1190 119120090622: 1192 Layout of struct vnet has changed as routing related variables were 1193 moved to their own Vimage module. Modules need to be recompiled. Bump 1194 __FreeBSD_version to 800099. 1195 119620090619: 1197 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1198 respectively. As long as no more than 16 groups per process are used, 1199 no changes should be visible. When more than 16 groups are used, old 1200 binaries may fail if they call getgroups() or getgrouplist() with 1201 statically sized storage. Recompiling will work around this, but 1202 applications should be modified to use dynamically allocated storage 1203 for group arrays as POSIX.1-2008 does not cap an implementation's 1204 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1205 1206 NFS and portalfs mounts may also be affected as the list of groups is 1207 truncated to 16. Users of NFS who use more than 16 groups, should 1208 take care that negative group permissions are not used on the exported 1209 file systems as they will not be reliable unless a GSSAPI based 1210 authentication method is used. 1211 121220090616: 1213 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1214 option compiles in the support for adaptive spinning for lockmgrs 1215 which want to enable it. The lockinit() function now accepts the flag 1216 LK_ADAPTIVE in order to make the lock object subject to adaptive 1217 spinning when both held in write and read mode. 1218 121920090613: 1220 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1221 changed. User applications that use this ioctl need to be rebuilt. 1222 122320090611: 1224 The layout of struct thread has changed. Kernel and modules need to 1225 be rebuilt. 1226 122720090608: 1228 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1229 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1230 123120090602: 1232 window(1) has been removed from the base system. It can now be 1233 installed from ports. The port is called misc/window. 1234 123520090601: 1236 The way we are storing and accessing `routing table' entries has 1237 changed. Programs reading the FIB, like netstat, need to be 1238 re-compiled. 1239 124020090601: 1241 A new netisr implementation has been added for FreeBSD 8. Network 1242 file system modules, such as igmp, ipdivert, and others, should be 1243 rebuilt. 1244 Bump __FreeBSD_version to 800096. 1245 124620090530: 1247 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1248 more valid. 1249 125020090530: 1251 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1252 Bump __FreeBSD_version to 800094. 1253 125420090529: 1255 Add mnt_xflag field to 'struct mount'. File system modules need to be 1256 rebuilt. 1257 Bump __FreeBSD_version to 800093. 1258 125920090528: 1260 The compiling option ADAPTIVE_SX has been retired while it has been 1261 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1262 The KPI for sx_init_flags() changes as accepting flags: 1263 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1264 been introduced in order to handle the reversed logic. 1265 Bump __FreeBSD_version to 800092. 1266 126720090527: 1268 Add support for hierarchical jails. Remove global securelevel. 1269 Bump __FreeBSD_version to 800091. 1270 127120090523: 1272 The layout of struct vnet_net has changed, therefore modules 1273 need to be rebuilt. 1274 Bump __FreeBSD_version to 800090. 1275 127620090523: 1277 The newly imported zic(8) produces a new format in the output. Please 1278 run tzsetup(8) to install the newly created data to /etc/localtime. 1279 128020090520: 1281 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1282 hw.usb.* and is now consistent again with previous releases. 1283 128420090520: 1285 802.11 monitor mode support was revised and driver api's were changed. 1286 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1287 of DLT_IEEE802_11. No user-visible data structures were changed but 1288 applications that use DLT_IEEE802_11 may require changes. 1289 Bump __FreeBSD_version to 800088. 1290 129120090430: 1292 The layout of the following structs has changed: sysctl_oid, 1293 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1294 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1295 panics may be experienced. World rebuild is required for 1296 correctly checking networking state from userland. 1297 Bump __FreeBSD_version to 800085. 1298 129920090429: 1300 MLDv2 and Source-Specific Multicast (SSM) have been merged 1301 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1302 The implementation of SSM within FreeBSD's IPv6 stack closely 1303 follows the IPv4 implementation. 1304 1305 For kernel developers: 1306 1307 * The most important changes are that the ip6_output() and 1308 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1309 and this lock has been downgraded to a non-recursive mutex. 1310 1311 * As with the changes to the IPv4 stack to support SSM, filtering 1312 of inbound multicast traffic must now be performed by transport 1313 protocols within the IPv6 stack. This does not apply to TCP and 1314 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1315 1316 * The KPIs used by IPv6 multicast are similar to those used by 1317 the IPv4 stack, with the following differences: 1318 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1319 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1320 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1321 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1322 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1323 for MLDv1 have an additional 'timer' argument which is used to 1324 jitter the initial membership report for the solicited-node 1325 multicast membership on-link. 1326 * This is not strictly needed for MLDv2, which already jitters 1327 its report transmissions. However, the 'timer' argument is 1328 preserved in case MLDv1 is active on the interface. 1329 1330 * The KAME linked-list based IPv6 membership implementation has 1331 been refactored to use a vector similar to that used by the IPv4 1332 stack. 1333 Code which maintains a list of its own multicast memberships 1334 internally, e.g. carp, has been updated to reflect the new 1335 semantics. 1336 1337 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1338 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1339 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1340 implementation constraint which needs to be addressed in HEAD. 1341 1342 For application developers: 1343 1344 * The changes are broadly similar to those made for the IPv4 1345 stack. 1346 1347 * The use of IPv4 and IPv6 multicast socket options on the same 1348 socket, using mapped addresses, HAS NOT been tested or supported. 1349 1350 * There are a number of issues with the implementation of various 1351 IPv6 multicast APIs which need to be resolved in the API surface 1352 before the implementation is fully compatible with KAME userland 1353 use, and these are mostly to do with interface index treatment. 1354 1355 * The literature available discusses the use of either the delta / ASM 1356 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1357 using setsourcefilter(3)/getsourcefilter(3). For more information 1358 please refer to RFC 3768, 'Socket Interface Extensions for 1359 Multicast Source Filters'. 1360 1361 * Applications which use the published RFC 3678 APIs should be fine. 1362 1363 For systems administrators: 1364 1365 * The mtest(8) utility has been refactored to support IPv6, in 1366 addition to IPv4. Interface addresses are no longer accepted 1367 as arguments, their names must be used instead. The utility 1368 will map the interface name to its first IPv4 address as 1369 returned by getifaddrs(3). 1370 1371 * The ifmcstat(8) utility has also been updated to print the MLDv2 1372 endpoint state and source filter lists via sysctl(3). 1373 1374 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1375 loopback of IPv6 multicast datagrams by default; it defaults to 1 1376 to preserve the existing behaviour. Disabling multicast loopback is 1377 recommended for optimal system performance. 1378 1379 * The IPv6 MROUTING code has been changed to examine this sysctl 1380 instead of attempting to perform a group lookup before looping 1381 back forwarded datagrams. 1382 1383 Bump __FreeBSD_version to 800084. 1384 138520090422: 1386 Implement low-level Bluetooth HCI API. 1387 Bump __FreeBSD_version to 800083. 1388 138920090419: 1390 The layout of struct malloc_type, used by modules to register new 1391 memory allocation types, has changed. Most modules will need to 1392 be rebuilt or panics may be experienced. 1393 Bump __FreeBSD_version to 800081. 1394 139520090415: 1396 Anticipate overflowing inp_flags - add inp_flags2. 1397 This changes most offsets in inpcb, so checking v4 connection 1398 state will require a world rebuild. 1399 Bump __FreeBSD_version to 800080. 1400 140120090415: 1402 Add an llentry to struct route and struct route_in6. Modules 1403 embedding a struct route will need to be recompiled. 1404 Bump __FreeBSD_version to 800079. 1405 140620090414: 1407 The size of rt_metrics_lite and by extension rtentry has changed. 1408 Networking administration apps will need to be recompiled. 1409 The route command now supports show as an alias for get, weighting 1410 of routes, sticky and nostick flags to alter the behavior of stateful 1411 load balancing. 1412 Bump __FreeBSD_version to 800078. 1413 141420090408: 1415 Do not use Giant for kbdmux(4) locking. This is wrong and 1416 apparently causing more problems than it solves. This will 1417 re-open the issue where interrupt handlers may race with 1418 kbdmux(4) in polling mode. Typical symptoms include (but 1419 not limited to) duplicated and/or missing characters when 1420 low level console functions (such as gets) are used while 1421 interrupts are enabled (for example geli password prompt, 1422 mountroot prompt etc.). Disabling kbdmux(4) may help. 1423 142420090407: 1425 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1426 kernel modules referencing any of the above need to be recompiled. 1427 Bump __FreeBSD_version to 800075. 1428 142920090320: 1430 GEOM_PART has become the default partition slicer for storage devices, 1431 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1432 introduces some changes: 1433 1434 MSDOS/EBR: the devices created from MSDOS extended partition entries 1435 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1436 to devices with offset-based names. fstabs may need to be modified. 1437 1438 BSD: the "geometry does not match label" warning is harmless in most 1439 cases but it points to problems in file system misalignment with 1440 disk geometry. The "c" partition is now implicit, covers the whole 1441 top-level drive and cannot be (mis)used by users. 1442 1443 General: Kernel dumps are now not allowed to be written to devices 1444 whose partition types indicate they are meant to be used for file 1445 systems (or, in case of MSDOS partitions, as something else than 1446 the "386BSD" type). 1447 1448 Most of these changes date approximately from 200812. 1449 145020090319: 1451 The uscanner(4) driver has been removed from the kernel. This follows 1452 Linux removing theirs in 2.6 and making libusb the default interface 1453 (supported by sane). 1454 145520090319: 1456 The multicast forwarding code has been cleaned up. netstat(1) 1457 only relies on KVM now for printing bandwidth upcall meters. 1458 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1459 ip6_mroute_mod respectively. The config(5) options for statically 1460 compiling this code remain the same, i.e. 'options MROUTING'. 1461 146220090315: 1463 Support for the IFF_NEEDSGIANT network interface flag has been 1464 removed, which means that non-MPSAFE network device drivers are no 1465 longer supported. In particular, if_ar, if_sr, and network device 1466 drivers from the old (legacy) USB stack can no longer be built or 1467 used. 1468 146920090313: 1470 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1471 a bunch of new language catalog files have also been added. 1472 This means that some common libc messages are now localized and 1473 they depend on the LC_MESSAGES environmental variable. 1474 147520090313: 1476 The k8temp(4) driver has been renamed to amdtemp(4) since 1477 support for Family 10 and Family 11 CPU families was added. 1478 147920090309: 1480 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1481 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1482 1483 For kernel developers, the most important changes are that the 1484 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1485 and this lock has been downgraded to a non-recursive mutex. 1486 1487 Transport protocols (UDP, Raw IP) are now responsible for filtering 1488 inbound multicast traffic according to group membership and source 1489 filters. The imo_multicast_filter() KPI exists for this purpose. 1490 Transports which do not use multicast (SCTP, TCP) already reject 1491 multicast by default. Forwarding and receive performance may improve 1492 as a mutex acquisition is no longer needed in the ip_input() 1493 low-level input path. in_addmulti() and in_delmulti() are shimmed 1494 to new KPIs which exist to support SSM in-kernel. 1495 1496 For application developers, it is recommended that loopback of 1497 multicast datagrams be disabled for best performance, as this 1498 will still cause the lock to be taken for each looped-back 1499 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1500 be tuned to 0 to disable loopback by default; it defaults to 1 1501 to preserve the existing behaviour. 1502 1503 For systems administrators, to obtain best performance with 1504 multicast reception and multiple groups, it is always recommended 1505 that a card with a suitably precise hash filter is used. Hash 1506 collisions will still result in the lock being taken within the 1507 transport protocol input path to check group membership. 1508 1509 If deploying FreeBSD in an environment with IGMP snooping switches, 1510 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1511 enabled; this forces 224.0.0.0/24 group membership to be announced 1512 via IGMP. 1513 1514 The size of 'struct igmpstat' has changed; netstat needs to be 1515 recompiled to reflect this. 1516 Bump __FreeBSD_version to 800070. 1517 151820090309: 1519 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1520 updated to use it. This requires a buildworld/installworld in order to 1521 update the library and dependencies (usbconfig, etc). Its advisable to 1522 rebuild all ports which uses libusb. More specific directions are given 1523 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1524 libusb are no longer required and can be removed. 1525 152620090302: 1527 A workaround is committed to allow the creation of System V shared 1528 memory segment of size > 2 GB on the 64-bit architectures. 1529 Due to a limitation of the existing ABI, the shm_segsz member 1530 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1531 wrong for large segments. Note that limits must be explicitly 1532 raised to allow such segments to be created. 1533 153420090301: 1535 The layout of struct ifnet has changed, requiring a rebuild of all 1536 network device driver modules. 1537 153820090227: 1539 The /dev handling for the new USB stack has changed, a 1540 buildworld/installworld is required for libusb20. 1541 154220090223: 1543 The new USB2 stack has now been permanently moved in and all kernel and 1544 module names reverted to their previous values (eg, usb, ehci, ohci, 1545 ums, ...). The old usb stack can be compiled in by prefixing the name 1546 with the letter 'o', the old usb modules have been removed. 1547 Updating entry 20090216 for xorg and 20090215 for libmap may still 1548 apply. 1549 155020090217: 1551 The rc.conf(5) option if_up_delay has been renamed to 1552 defaultroute_delay to better reflect its purpose. If you have 1553 customized this setting in /etc/rc.conf you need to update it to 1554 use the new name. 1555 155620090216: 1557 xorg 7.4 wants to configure its input devices via hald which does not 1558 yet work with USB2. If the keyboard/mouse does not work in xorg then 1559 add 1560 Option "AllowEmptyInput" "off" 1561 to your ServerLayout section. This will cause X to use the configured 1562 kbd and mouse sections from your xorg.conf. 1563 156420090215: 1565 The GENERIC kernels for all architectures now default to the new USB2 1566 stack. No kernel config options or code have been removed so if a 1567 problem arises please report it and optionally revert to the old USB 1568 stack. If you are loading USB kernel modules or have a custom kernel 1569 that includes GENERIC then ensure that usb names are also changed over, 1570 eg uftdi -> usb2_serial_ftdi. 1571 1572 Older programs linked against the ports libusb 0.1 need to be 1573 redirected to the new stack's libusb20. /etc/libmap.conf can 1574 be used for this: 1575 # Map old usb library to new one for usb2 stack 1576 libusb-0.1.so.8 libusb20.so.1 1577 157820090209: 1579 All USB ethernet devices now attach as interfaces under the name ueN 1580 (eg. ue0). This is to provide a predictable name as vendors often 1581 change usb chipsets in a product without notice. 1582 158320090203: 1584 The ichsmb(4) driver has been changed to require SMBus slave 1585 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1586 All of the other SMBus controller drivers require left-justified 1587 slave addresses, so this change makes all the drivers provide the 1588 same interface. 1589 159020090201: 1591 INET6 statistics (struct ip6stat) was updated. 1592 netstat(1) needs to be recompiled. 1593 159420090119: 1595 NTFS has been removed from GENERIC kernel on amd64 to match 1596 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1597 will load ntfs.ko module automatically when NTFS support is 1598 actually needed, unless ntfs.ko is not installed or security 1599 level prohibits loading kernel modules. If either is the case, 1600 "options NTFS" has to be added into kernel config. 1601 160220090115: 1603 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1604 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1605 800061. User space tools that rely on the size of struct tcpcb in 1606 tcp_var.h (e.g. sockstat) need to be recompiled. 1607 160820081225: 1609 ng_tty(4) module updated to match the new TTY subsystem. 1610 Due to API change, user-level applications must be updated. 1611 New API support added to mpd5 CVS and expected to be present 1612 in next mpd5.3 release. 1613 161420081219: 1615 With __FreeBSD_version 800060 the makefs tool is part of 1616 the base system (it was a port). 1617 161820081216: 1619 The afdata and ifnet locks have been changed from mutexes to 1620 rwlocks, network modules will need to be re-compiled. 1621 162220081214: 1623 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1624 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1625 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1626 architecture and 40 bytes on 64-bit architecture. The userland 1627 applications "arp" and "ndp" have been updated accordingly. 1628 The output from "netstat -r" shows only routing entries and 1629 none of the L2 information. 1630 163120081130: 1632 __FreeBSD_version 800057 marks the switchover from the 1633 binary ath hal to source code. Users must add the line: 1634 1635 options AH_SUPPORT_AR5416 1636 1637 to their kernel config files when specifying: 1638 1639 device ath_hal 1640 1641 The ath_hal module no longer exists; the code is now compiled 1642 together with the driver in the ath module. It is now 1643 possible to tailor chip support (i.e. reduce the set of chips 1644 and thereby the code size); consult ath_hal(4) for details. 1645 164620081121: 1647 __FreeBSD_version 800054 adds memory barriers to 1648 <machine/atomic.h>, new interfaces to ifnet to facilitate 1649 multiple hardware transmit queues for cards that support 1650 them, and a lock-less ring-buffer implementation to 1651 enable drivers to more efficiently manage queueing of 1652 packets. 1653 165420081117: 1655 A new version of ZFS (version 13) has been merged to -HEAD. 1656 This version has zpool attribute "listsnapshots" off by 1657 default, which means "zfs list" does not show snapshots, 1658 and is the same as Solaris behavior. 1659 166020081028: 1661 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1662 166320081009: 1664 The uhci, ohci, ehci and slhci USB Host controller drivers have 1665 been put into separate modules. If you load the usb module 1666 separately through loader.conf you will need to load the 1667 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1668 controller add the following to loader.conf: 1669 1670 uhci_load="YES" 1671 ehci_load="YES" 1672 167320081009: 1674 The ABI used by the PMC toolset has changed. Please keep 1675 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1676 sync. 1677 167820081009: 1679 atapci kernel module now includes only generic PCI ATA 1680 driver. AHCI driver moved to ataahci kernel module. 1681 All vendor-specific code moved into separate kernel modules: 1682 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1683 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1684 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1685 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1686 168720080820: 1688 The TTY subsystem of the kernel has been replaced by a new 1689 implementation, which provides better scalability and an 1690 improved driver model. Most common drivers have been migrated to 1691 the new TTY subsystem, while others have not. The following 1692 drivers have not yet been ported to the new TTY layer: 1693 1694 PCI/ISA: 1695 cy, digi, rc, rp, sio 1696 1697 USB: 1698 ubser, ucycom 1699 1700 Line disciplines: 1701 ng_h4, ng_tty, ppp, sl, snp 1702 1703 Adding these drivers to your kernel configuration file shall 1704 cause compilation to fail. 1705 170620080818: 1707 ntpd has been upgraded to 4.2.4p5. 1708 170920080801: 1710 OpenSSH has been upgraded to 5.1p1. 1711 1712 For many years, FreeBSD's version of OpenSSH preferred DSA 1713 over RSA for host and user authentication keys. With this 1714 upgrade, we've switched to the vendor's default of RSA over 1715 DSA. This may cause upgraded clients to warn about unknown 1716 host keys even for previously known hosts. Users should 1717 follow the usual procedure for verifying host keys before 1718 accepting the RSA key. 1719 1720 This can be circumvented by setting the "HostKeyAlgorithms" 1721 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1722 command line. 1723 1724 Please note that the sequence of keys offered for 1725 authentication has been changed as well. You may want to 1726 specify IdentityFile in a different order to revert this 1727 behavior. 1728 172920080713: 1730 The sio(4) driver has been removed from the i386 and amd64 1731 kernel configuration files. This means uart(4) is now the 1732 default serial port driver on those platforms as well. 1733 1734 To prevent collisions with the sio(4) driver, the uart(4) driver 1735 uses different names for its device nodes. This means the 1736 onboard serial port will now most likely be called "ttyu0" 1737 instead of "ttyd0". You may need to reconfigure applications to 1738 use the new device names. 1739 1740 When using the serial port as a boot console, be sure to update 1741 /boot/device.hints and /etc/ttys before booting the new kernel. 1742 If you forget to do so, you can still manually specify the hints 1743 at the loader prompt: 1744 1745 set hint.uart.0.at="isa" 1746 set hint.uart.0.port="0x3F8" 1747 set hint.uart.0.flags="0x10" 1748 set hint.uart.0.irq="4" 1749 boot -s 1750 175120080609: 1752 The gpt(8) utility has been removed. Use gpart(8) to partition 1753 disks instead. 1754 175520080603: 1756 The version that Linuxulator emulates was changed from 2.4.2 1757 to 2.6.16. If you experience any problems with Linux binaries 1758 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1759 if it fixes the problem contact emulation mailing list. 1760 176120080525: 1762 ISDN4BSD (I4B) was removed from the src tree. You may need to 1763 update a your kernel configuration and remove relevant entries. 1764 176520080509: 1766 I have checked in code to support multiple routing tables. 1767 See the man pages setfib(1) and setfib(2). 1768 This is a hopefully backwards compatible version, 1769 but to make use of it you need to compile your kernel 1770 with options ROUTETABLES=2 (or more up to 16). 1771 177220080420: 1773 The 802.11 wireless support was redone to enable multi-bss 1774 operation on devices that are capable. The underlying device 1775 is no longer used directly but instead wlanX devices are 1776 cloned with ifconfig. This requires changes to rc.conf files. 1777 For example, change: 1778 ifconfig_ath0="WPA DHCP" 1779 to 1780 wlans_ath0=wlan0 1781 ifconfig_wlan0="WPA DHCP" 1782 see rc.conf(5) for more details. In addition, mergemaster of 1783 /etc/rc.d is highly recommended. Simultaneous update of userland 1784 and kernel wouldn't hurt either. 1785 1786 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1787 modules were merged into the base wlan module. All references 1788 to these modules (e.g. in kernel config files) must be removed. 1789 179020080408: 1791 psm(4) has gained write(2) support in native operation level. 1792 Arbitrary commands can be written to /dev/psm%d and status can 1793 be read back from it. Therefore, an application is responsible 1794 for status validation and error recovery. It is a no-op in 1795 other operation levels. 1796 179720080312: 1798 Support for KSE threading has been removed from the kernel. To 1799 run legacy applications linked against KSE libmap.conf may 1800 be used. The following libmap.conf may be used to ensure 1801 compatibility with any prior release: 1802 1803 libpthread.so.1 libthr.so.1 1804 libpthread.so.2 libthr.so.2 1805 libkse.so.3 libthr.so.3 1806 180720080301: 1808 The layout of struct vmspace has changed. This affects libkvm 1809 and any executables that link against libkvm and use the 1810 kvm_getprocs() function. In particular, but not exclusively, 1811 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1812 The effects are minimal, but it's advisable to upgrade world 1813 nonetheless. 1814 181520080229: 1816 The latest em driver no longer has support in it for the 1817 82575 adapter, this is now moved to the igb driver. The 1818 split was done to make new features that are incompatible 1819 with older hardware easier to do. 1820 182120080220: 1822 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1823 likewise the kernel option is now GEOM_LINUX_LVM. 1824 182520080211: 1826 The default NFS mount mode has changed from UDP to TCP for 1827 increased reliability. If you rely on (insecurely) NFS 1828 mounting across a firewall you may need to update your 1829 firewall rules. 1830 183120080208: 1832 Belatedly note the addition of m_collapse for compacting 1833 mbuf chains. 1834 183520080126: 1836 The fts(3) structures have been changed to use adequate 1837 integer types for their members and so to be able to cope 1838 with huge file trees. The old fts(3) ABI is preserved 1839 through symbol versioning in libc, so third-party binaries 1840 using fts(3) should still work, although they will not take 1841 advantage of the extended types. At the same time, some 1842 third-party software might fail to build after this change 1843 due to unportable assumptions made in its source code about 1844 fts(3) structure members. Such software should be fixed 1845 by its vendor or, in the worst case, in the ports tree. 1846 FreeBSD_version 800015 marks this change for the unlikely 1847 case that a portable fix is impossible. 1848 184920080123: 1850 To upgrade to -current after this date, you must be running 1851 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1852 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1853 185420071128: 1855 The ADAPTIVE_GIANT kernel option has been retired because its 1856 functionality is the default now. 1857 185820071118: 1859 The AT keyboard emulation of sunkbd(4) has been turned on 1860 by default. In order to make the special symbols of the Sun 1861 keyboards driven by sunkbd(4) work under X these now have 1862 to be configured the same way as Sun USB keyboards driven 1863 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1864 1865 Option "XkbLayout" "us" 1866 Option "XkbRules" "xorg" 1867 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1868 186920071024: 1870 It has been decided that it is desirable to provide ABI 1871 backwards compatibility to the FreeBSD 4/5/6 versions of the 1872 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1873 broken with the introduction of PCI domain support (see the 1874 20070930 entry). Unfortunately, this required the ABI of 1875 PCIOCGETCONF to be broken again in order to be able to 1876 provide backwards compatibility to the old version of that 1877 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1878 again. As for prominent ports this affects neither pciutils 1879 nor xorg-server this time, the hal port needs to be rebuilt 1880 however. 1881 188220071020: 1883 The misnamed kthread_create() and friends have been renamed 1884 to kproc_create() etc. Many of the callers already 1885 used kproc_start().. 1886 I will return kthread_create() and friends in a while 1887 with implementations that actually create threads, not procs. 1888 Renaming corresponds with version 800002. 1889 189020071010: 1891 RELENG_7 branched. 1892 1893COMMON ITEMS: 1894 1895 General Notes 1896 ------------- 1897 Avoid using make -j when upgrading. While generally safe, there are 1898 sometimes problems using -j to upgrade. If your upgrade fails with 1899 -j, please try again without -j. From time to time in the past there 1900 have been problems using -j with buildworld and/or installworld. This 1901 is especially true when upgrading between "distant" versions (eg one 1902 that cross a major release boundary or several minor releases, or when 1903 several months have passed on the -current branch). 1904 1905 Sometimes, obscure build problems are the result of environment 1906 poisoning. This can happen because the make utility reads its 1907 environment when searching for values for global variables. To run 1908 your build attempts in an "environmental clean room", prefix all make 1909 commands with 'env -i '. See the env(1) manual page for more details. 1910 1911 When upgrading from one major version to another it is generally best 1912 to upgrade to the latest code in the currently installed branch first, 1913 then do an upgrade to the new branch. This is the best-tested upgrade 1914 path, and has the highest probability of being successful. Please try 1915 this approach before reporting problems with a major version upgrade. 1916 1917 When upgrading a live system, having a root shell around before 1918 installing anything can help undo problems. Not having a root shell 1919 around can lead to problems if pam has changed too much from your 1920 starting point to allow continued authentication after the upgrade. 1921 1922 ZFS notes 1923 --------- 1924 When upgrading the boot ZFS pool to a new version, always follow 1925 these two steps: 1926 1927 1.) recompile and reinstall the ZFS boot loader and boot block 1928 (this is part of "make buildworld" and "make installworld") 1929 1930 2.) update the ZFS boot block on your boot drive 1931 1932 The following example updates the ZFS boot block on the first 1933 partition (freebsd-boot) of a GPT partitioned drive ad0: 1934 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 1935 1936 Non-boot pools do not need these updates. 1937 1938 To build a kernel 1939 ----------------- 1940 If you are updating from a prior version of FreeBSD (even one just 1941 a few days old), you should follow this procedure. It is the most 1942 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1943 1944 make kernel-toolchain 1945 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1946 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1947 1948 To test a kernel once 1949 --------------------- 1950 If you just want to boot a kernel once (because you are not sure 1951 if it works, or if you want to boot a known bad kernel to provide 1952 debugging information) run 1953 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1954 nextboot -k testkernel 1955 1956 To just build a kernel when you know that it won't mess you up 1957 -------------------------------------------------------------- 1958 This assumes you are already running a CURRENT system. Replace 1959 ${arch} with the architecture of your machine (e.g. "i386", 1960 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1961 1962 cd src/sys/${arch}/conf 1963 config KERNEL_NAME_HERE 1964 cd ../compile/KERNEL_NAME_HERE 1965 make depend 1966 make 1967 make install 1968 1969 If this fails, go to the "To build a kernel" section. 1970 1971 To rebuild everything and install it on the current system. 1972 ----------------------------------------------------------- 1973 # Note: sometimes if you are running current you gotta do more than 1974 # is listed here if you are upgrading from a really old current. 1975 1976 <make sure you have good level 0 dumps> 1977 make buildworld 1978 make kernel KERNCONF=YOUR_KERNEL_HERE 1979 [1] 1980 <reboot in single user> [3] 1981 mergemaster -p [5] 1982 make installworld 1983 mergemaster -i [4] 1984 make delete-old [6] 1985 <reboot> 1986 1987 To cross-install current onto a separate partition 1988 -------------------------------------------------- 1989 # In this approach we use a separate partition to hold 1990 # current's root, 'usr', and 'var' directories. A partition 1991 # holding "/", "/usr" and "/var" should be about 2GB in 1992 # size. 1993 1994 <make sure you have good level 0 dumps> 1995 <boot into -stable> 1996 make buildworld 1997 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1998 <maybe newfs current's root partition> 1999 <mount current's root partition on directory ${CURRENT_ROOT}> 2000 make installworld DESTDIR=${CURRENT_ROOT} 2001 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2002 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2003 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2004 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2005 <reboot into current> 2006 <do a "native" rebuild/install as described in the previous section> 2007 <maybe install compatibility libraries from ports/misc/compat*> 2008 <reboot> 2009 2010 2011 To upgrade in-place from stable to current 2012 ---------------------------------------------- 2013 <make sure you have good level 0 dumps> 2014 make buildworld [9] 2015 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2016 [1] 2017 <reboot in single user> [3] 2018 mergemaster -p [5] 2019 make installworld 2020 mergemaster -i [4] 2021 make delete-old [6] 2022 <reboot> 2023 2024 Make sure that you've read the UPDATING file to understand the 2025 tweaks to various things you need. At this point in the life 2026 cycle of current, things change often and you are on your own 2027 to cope. The defaults can also change, so please read ALL of 2028 the UPDATING entries. 2029 2030 Also, if you are tracking -current, you must be subscribed to 2031 freebsd-current@freebsd.org. Make sure that before you update 2032 your sources that you have read and understood all the recent 2033 messages there. If in doubt, please track -stable which has 2034 much fewer pitfalls. 2035 2036 [1] If you have third party modules, such as vmware, you 2037 should disable them at this point so they don't crash your 2038 system on reboot. 2039 2040 [3] From the bootblocks, boot -s, and then do 2041 fsck -p 2042 mount -u / 2043 mount -a 2044 cd src 2045 adjkerntz -i # if CMOS is wall time 2046 Also, when doing a major release upgrade, it is required that 2047 you boot into single user mode to do the installworld. 2048 2049 [4] Note: This step is non-optional. Failure to do this step 2050 can result in a significant reduction in the functionality of the 2051 system. Attempting to do it by hand is not recommended and those 2052 that pursue this avenue should read this file carefully, as well 2053 as the archives of freebsd-current and freebsd-hackers mailing lists 2054 for potential gotchas. The -U option is also useful to consider. 2055 See mergemaster(8) for more information. 2056 2057 [5] Usually this step is a noop. However, from time to time 2058 you may need to do this if you get unknown user in the following 2059 step. It never hurts to do it all the time. You may need to 2060 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2061 install) after the buildworld before this step if you last updated 2062 from current before 20130425 or from -stable before 20130430. 2063 2064 [6] This only deletes old files and directories. Old libraries 2065 can be deleted by "make delete-old-libs", but you have to make 2066 sure that no program is using those libraries anymore. 2067 2068 [8] In order to have a kernel that can run the 4.x binaries needed to 2069 do an installworld, you must include the COMPAT_FREEBSD4 option in 2070 your kernel. Failure to do so may leave you with a system that is 2071 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2072 required to run the 5.x binaries on more recent kernels. And so on 2073 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2074 2075 Make sure that you merge any new devices from GENERIC since the 2076 last time you updated your kernel config file. 2077 2078 [9] When checking out sources, you must include the -P flag to have 2079 cvs prune empty directories. 2080 2081 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2082 "?=" instead of the "=" assignment operator, so that buildworld can 2083 override the CPUTYPE if it needs to. 2084 2085 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2086 not on the command line, or in /etc/make.conf. buildworld will 2087 warn if it is improperly defined. 2088FORMAT: 2089 2090This file contains a list, in reverse chronological order, of major 2091breakages in tracking -current. It is not guaranteed to be a complete 2092list of such breakages, and only contains entries since October 10, 2007. 2093If you need to see UPDATING entries from before that date, you will need 2094to fetch an UPDATING file from an older FreeBSD release. 2095 2096Copyright information: 2097 2098Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2099 2100Redistribution, publication, translation and use, with or without 2101modification, in full or in part, in any form or format of this 2102document are permitted without further permission from the author. 2103 2104THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2105IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2106WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2107DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2108INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2109(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2110SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2111HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2112STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2113IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2114POSSIBILITY OF SUCH DAMAGE. 2115 2116Contact Warner Losh if you have any questions about your use of 2117this document. 2118 2119$FreeBSD: releng/10.0/UPDATING 273439 2014-10-21 23:52:25Z delphij $ 2120