UPDATING revision 265124
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 1920140430: p2 FreeBSD-SA-14:07.devfs 20 FreeBSD-SA-14:08.tcp 21 FreeBSD-SA-14:09.openssl 22 23 Fix devfs rules not applied by default for jails. [SA-14:07] 24 25 Fix TCP reassembly vulnerability. [SA-14:08] 26 27 Fix OpenSSL use-after-free vulnerability. [SA-14:09] 28 2920140408: p1 FreeBSD-SA-14:05.nfsserver 30 FreeBSD-SA-14:06.openssl 31 Fix deadlock in the NFS server. [SA-14:05] 32 33 Fix multiple vulnerabilities in OpenSSL. [SA-14:06] 34 3520131223: 36 The behavior of gss_pseudo_random() for the krb5 mechanism 37 has changed, for applications requesting a longer random string 38 than produced by the underlying enctype's pseudo-random() function. 39 In particular, the random string produced from a session key of 40 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 41 be different at the 17th octet and later, after this change. 42 The counter used in the PRF+ construction is now encoded as a 43 big-endian integer in accordance with RFC 4402. 44 4520131031: 46 The default version of mtree is nmtree which is obtained from 47 NetBSD. The output is generally the same, but may vary 48 slightly. If you found you need identical output adding 49 "-F freebsd9" to the command line should do the trick. For the 50 time being, the old mtree is available as fmtree. 51 5220131014: 53 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 54 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 55 1.1.4_8 and verify bsdyml not linked in, before running "make 56 delete-old-libs": 57 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 58 or 59 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 60 6120131010: 62 The rc.d/jail script has been updated to support jail(8) 63 configuration file. The "jail_<jname>_*" rc.conf(5) variables 64 for per-jail configuration are automatically converted to 65 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 66 This is transparently backward compatible. See below about some 67 incompatibilities and rc.conf(5) manual page for more details. 68 69 These variables are now deprecated in favor of jail(8) configuration 70 file. One can use "rc.d/jail config <jname>" command to generate 71 a jail(8) configuration file in /var/run/jail.<jname>.conf without 72 running the jail(8) utility. The default pathname of the 73 configuration file is /etc/jail.conf and can be specified by 74 using $jail_conf or $jail_<jname>_conf variables. 75 76 Please note that jail_devfs_ruleset accepts an integer at 77 this moment. Please consider to rewrite the ruleset name 78 with an integer. 79 8020130930: 81 BIND has been removed from the base system. If all you need 82 is a local resolver, simply enable and start the local_unbound 83 service instead. Otherwise, several versions of BIND are 84 available in the ports tree. The dns/bind99 port is one example. 85 86 With this change, nslookup(1) and dig(1) are no longer in the base 87 system. Users should instead use host(1) and drill(1) which are 88 in the base system. Alternatively, nslookup and dig can 89 be obtained by installing the dns/bind-tools port. 90 9120130916: 92 With the addition of unbound(8), a new unbound user is now 93 required during installworld. "mergemaster -p" can be used to 94 add the user prior to installworld, as documented in the handbook. 95 9620130911: 97 OpenSSH is now built with DNSSEC support, and will by default 98 silently trust signed SSHFP records. This can be controlled with 99 the VerifyHostKeyDNS client configuration setting. DNSSEC support 100 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 101 10220130906: 103 The GNU Compiler Collection and C++ standard library (libstdc++) 104 are no longer built by default on platforms where clang is the system 105 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 106 options in src.conf. 107 10820130905: 109 The PROCDESC kernel option is now part of the GENERIC kernel 110 configuration and is required for the rwhod(8) to work. 111 If you are using custom kernel configuration, you should include 112 'options PROCDESC'. 113 11420130905: 115 The API and ABI related to the Capsicum framework was modified 116 in backward incompatible way. The userland libraries and programs 117 have to be recompiled to work with the new kernel. This includes the 118 following libraries and programs, but the whole buildworld is 119 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 120 kdump, procstat, rwho, rwhod, uniq. 121 12220130903: 123 AES-NI intrinsic support has been added to gcc. The AES-NI module 124 has been updated to use this support. A new gcc is required to build 125 the aesni module on both i386 and amd64. 126 12720130821: 128 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 129 Thus "device padlock_rng" and "device rdrand_rng" should be 130 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 131 13220130813: 133 WITH_ICONV has been split into two feature sets. WITH_ICONV now 134 enables just the iconv* functionality and is now on by default. 135 WITH_LIBICONV_COMPAT enables the libiconv api and link time 136 compatability. Set WITHOUT_ICONV to build the old way. 137 If you have been using WITH_ICONV before, you will very likely 138 need to turn on WITH_LIBICONV_COMPAT. 139 14020130806: 141 INVARIANTS option now enables DEBUG for code with OpenSolaris and 142 Illumos origin, including ZFS. If you have INVARIANTS in your 143 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 144 explicitly. 145 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 146 locks if WITNESS option was set. Because that generated a lot of 147 witness(9) reports and all of them were believed to be false 148 positives, this is no longer done. New option OPENSOLARIS_WITNESS 149 can be used to achieve the previous behavior. 150 15120130806: 152 Timer values in IPv6 data structures now use time_uptime instead 153 of time_second. Although this is not a user-visible functional 154 change, userland utilities which directly use them---ndp(8), 155 rtadvd(8), and rtsold(8) in the base system---need to be updated 156 to r253970 or later. 157 15820130802: 159 find -delete can now delete the pathnames given as arguments, 160 instead of only files found below them or if the pathname did 161 not contain any slashes. Formerly, the following error message 162 would result: 163 164 find: -delete: <path>: relative path potentially not safe 165 166 Deleting the pathnames given as arguments can be prevented 167 without error messages using -mindepth 1 or by changing 168 directory and passing "." as argument to find. This works in the 169 old as well as the new version of find. 170 17120130726: 172 Behavior of devfs rules path matching has been changed. 173 Pattern is now always matched against fully qualified devfs 174 path and slash characters must be explicitly matched by 175 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 176 subdirectories must be reviewed. 177 17820130716: 179 The default ARM ABI has changed to the ARM EABI. The old ABI is 180 incompatible with the ARM EABI and all programs and modules will 181 need to be rebuilt to work with a new kernel. 182 183 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 184 185 NOTE: Support for the old ABI will be removed in the future and 186 users are advised to upgrade. 187 18820130709: 189 pkg_install has been disconnected from the build if you really need it 190 you should add WITH_PKGTOOLS in your src.conf(5). 191 19220130709: 193 Most of network statistics structures were changed to be able 194 keep 64-bits counters. Thus all tools, that work with networking 195 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 196 19720130629: 198 Fix targets that run multiple make's to use && rather than ; 199 so that subsequent steps depend on success of previous. 200 201 NOTE: if building 'universe' with -j* on stable/8 or stable/9 202 it would be better to start the build using bmake, to avoid 203 overloading the machine. 204 20520130618: 206 Fix a bug that allowed a tracing process (e.g. gdb) to write 207 to a memory-mapped file in the traced process's address space 208 even if neither the traced process nor the tracing process had 209 write access to that file. 210 21120130615: 212 CVS has been removed from the base system. An exact copy 213 of the code is available from the devel/cvs port. 214 21520130613: 216 Some people report the following error after the switch to bmake: 217 218 make: illegal option -- J 219 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 220 ... 221 *** [buildworld] Error code 2 222 223 this likely due to an old instance of make in 224 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 225 which src/Makefile will use that blindly, if it exists, so if 226 you see the above error: 227 228 rm -rf `make -V MAKEPATH` 229 230 should resolve it. 231 23220130516: 233 Use bmake by default. 234 Whereas before one could choose to build with bmake via 235 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 236 make. The goal is to remove these knobs for 10-RELEASE. 237 238 It is worth noting that bmake (like gmake) treats the command 239 line as the unit of failure, rather than statements within the 240 command line. Thus '(cd some/where && dosomething)' is safer 241 than 'cd some/where; dosomething'. The '()' allows consistent 242 behavior in parallel build. 243 24420130429: 245 Fix a bug that allows NFS clients to issue READDIR on files. 246 24720130426: 248 The WITHOUT_IDEA option has been removed because 249 the IDEA patent expired. 250 25120130426: 252 The sysctl which controls TRIM support under ZFS has been renamed 253 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 254 enabled by default. 255 25620130425: 257 The mergemaster command now uses the default MAKEOBJDIRPREFIX 258 rather than creating it's own in the temporary directory in 259 order allow access to bootstrapped versions of tools such as 260 install and mtree. When upgrading from version of FreeBSD where 261 the install command does not support -l, you will need to 262 install a new mergemaster command if mergemaster -p is required. 263 This can be accomplished with the command (cd src/usr.sbin/mergemaster 264 && make install). 265 26620130404: 267 Legacy ATA stack, disabled and replaced by new CAM-based one since 268 FreeBSD 9.0, completely removed from the sources. Kernel modules 269 atadisk and atapi*, user-level tools atacontrol and burncd are 270 removed. Kernel option `options ATA_CAM` is now permanently enabled 271 and removed. 272 27320130319: 274 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 275 and socketpair(2). Software, in particular Kerberos, may 276 automatically detect and use these during building. The resulting 277 binaries will not work on older kernels. 278 27920130308: 280 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 281 information, see the respective 20130304 entry). 282 28320130304: 284 Recent commits to callout(9) changed the size of struct callout, 285 so the KBI is probably heavily disturbed. Also, some functions 286 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 287 by macros. Every kernel module using it won't load, so rebuild 288 is requested. 289 290 The ctl device has been re-enabled in GENERIC for i386 and amd64, 291 but does not initialize by default (because of the new CTL_DISABLE 292 option) to save memory. To re-enable it, remove the CTL_DISABLE 293 option from the kernel config file or set kern.cam.ctl.disable=0 294 in /boot/loader.conf. 295 29620130301: 297 The ctl device has been disabled in GENERIC for i386 and amd64. 298 This was done due to the extra memory being allocated at system 299 initialisation time by the ctl driver which was only used if 300 a CAM target device was created. This makes a FreeBSD system 301 unusable on 128MB or less of RAM. 302 30320130208: 304 A new compression method (lz4) has been merged to -HEAD. Please 305 refer to zpool-features(7) for more information. 306 307 Please refer to the "ZFS notes" section of this file for information 308 on upgrading boot ZFS pools. 309 31020130129: 311 A BSD-licensed patch(1) variant has been added and is installed 312 as bsdpatch, being the GNU version the default patch. 313 To inverse the logic and use the BSD-licensed one as default, 314 while having the GNU version installed as gnupatch, rebuild 315 and install world with the WITH_BSD_PATCH knob set. 316 31720130121: 318 Due to the use of the new -l option to install(1) during build 319 and install, you must take care not to directly set the INSTALL 320 make variable in your /etc/make.conf, /etc/src.conf, or on the 321 command line. If you wish to use the -C flag for all installs 322 you may be able to add INSTALL+=-C to /etc/make.conf or 323 /etc/src.conf. 324 32520130118: 326 The install(1) option -M has changed meaning and now takes an 327 argument that is a file or path to append logs to. In the 328 unlikely event that -M was the last option on the command line 329 and the command line contained at least two files and a target 330 directory the first file will have logs appended to it. The -M 331 option served little practical purpose in the last decade so its 332 use is expected to be extremely rare. 333 33420121223: 335 After switching to Clang as the default compiler some users of ZFS 336 on i386 systems started to experience stack overflow kernel panics. 337 Please consider using 'options KSTACK_PAGES=4' in such configurations. 338 33920121222: 340 GEOM_LABEL now mangles label names read from file system metadata. 341 Mangling affect labels containing spaces, non-printable characters, 342 '%' or '"'. Device names in /etc/fstab and other places may need to 343 be updated. 344 34520121217: 346 By default, only the 10 most recent kernel dumps will be saved. To 347 restore the previous behaviour (no limit on the number of kernel dumps 348 stored in the dump directory) add the following line to /etc/rc.conf: 349 350 savecore_flags="" 351 35220121201: 353 With the addition of auditdistd(8), a new auditdistd user is now 354 required during installworld. "mergemaster -p" can be used to 355 add the user prior to installworld, as documented in the handbook. 356 35720121117: 358 The sin6_scope_id member variable in struct sockaddr_in6 is now 359 filled by the kernel before passing the structure to the userland via 360 sysctl or routing socket. This means the KAME-specific embedded scope 361 id in sin6_addr.s6_addr[2] is always cleared in userland application. 362 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 363 __FreeBSD_version is bumped to 1000025. 364 36520121105: 366 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 367 This means that the world and kernel will be compiled with clang 368 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 369 and /usr/bin/cpp. To disable this behavior and revert to building 370 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 371 of current may need to bootstrap WITHOUT_CLANG first if the clang 372 build fails (its compatibility window doesn't extend to the 9 stable 373 branch point). 374 37520121102: 376 The IPFIREWALL_FORWARD kernel option has been removed. Its 377 functionality now turned on by default. 378 37920121023: 380 The ZERO_COPY_SOCKET kernel option has been removed and 381 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 382 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 383 mechanism which is not safe and may result in kernel crashes. 384 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 385 driver supports disposeable external page sized mbuf storage. 386 Proper replacements for both zero-copy mechanisms are under 387 consideration and will eventually lead to complete removal 388 of the two kernel options. 389 39020121023: 391 The IPv4 network stack has been converted to network byte 392 order. The following modules need to be recompiled together 393 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 394 pf(4), ipfw(4), ng_ipfw(4), stf(4). 395 39620121022: 397 Support for non-MPSAFE filesystems was removed from VFS. The 398 VFS_VERSION was bumped, all filesystem modules shall be 399 recompiled. 400 40120121018: 402 All the non-MPSAFE filesystems have been disconnected from 403 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 404 portalfs, smbfs, xfs. 405 40620121016: 407 The interface cloning API and ABI has changed. The following 408 modules need to be recompiled together with kernel: 409 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 410 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 411 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 412 41320121015: 414 The sdhci driver was split in two parts: sdhci (generic SD Host 415 Controller logic) and sdhci_pci (actual hardware driver). 416 No kernel config modifications are required, but if you 417 load sdhc as a module you must switch to sdhci_pci instead. 418 41920121014: 420 Import the FUSE kernel and userland support into base system. 421 42220121013: 423 The GNU sort(1) program has been removed since the BSD-licensed 424 sort(1) has been the default for quite some time and no serious 425 problems have been reported. The corresponding WITH_GNU_SORT 426 knob has also gone. 427 42820121006: 429 The pfil(9) API/ABI for AF_INET family has been changed. Packet 430 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 431 with new kernel. 432 43320121001: 434 The net80211(4) ABI has been changed to allow for improved driver 435 PS-POLL and power-save support. All wireless drivers need to be 436 recompiled to work with the new kernel. 437 43820120913: 439 The random(4) support for the VIA hardware random number 440 generator (`PADLOCK') is no longer enabled unconditionally. 441 Add the padlock_rng device in the custom kernel config if 442 needed. The GENERIC kernels on i386 and amd64 do include the 443 device, so the change only affects the custom kernel 444 configurations. 445 44620120908: 447 The pf(4) packet filter ABI has been changed. pfctl(8) and 448 snmp_pf module need to be recompiled to work with new kernel. 449 45020120828: 451 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 452 to -HEAD. Pools that have empty_bpobj in active state can not be 453 imported read-write with ZFS implementations that do not support 454 this feature. For more information read the zpool-features(5) 455 manual page. 456 45720120727: 458 The sparc64 ZFS loader has been changed to no longer try to auto- 459 detect ZFS providers based on diskN aliases but now requires these 460 to be explicitly listed in the OFW boot-device environment variable. 461 46220120712: 463 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 464 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 465 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 466 46720120712: 468 The following sysctls and tunables have been renamed for consistency 469 with other variables: 470 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 471 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 472 47320120628: 474 The sort utility has been replaced with BSD sort. For now, GNU sort 475 is also available as "gnusort" or the default can be set back to 476 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 477 installed as "bsdsort". 478 47920120611: 480 A new version of ZFS (pool version 5000) has been merged to -HEAD. 481 Starting with this version the old system of ZFS pool versioning 482 is superseded by "feature flags". This concept enables forward 483 compatibility against certain future changes in functionality of ZFS 484 pools. The first read-only compatible "feature flag" for ZFS pools 485 is named "com.delphix:async_destroy". For more information 486 read the new zpool-features(5) manual page. 487 Please refer to the "ZFS notes" section of this file for information 488 on upgrading boot ZFS pools. 489 49020120417: 491 The malloc(3) implementation embedded in libc now uses sources imported 492 as contrib/jemalloc. The most disruptive API change is to 493 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 494 delete it prior to installworld, and optionally re-create it using the 495 new format after rebooting. See malloc.conf(5) for details 496 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 497 NAMESPACE section). 498 49920120328: 500 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 501 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 502 now spelled mips. This is to aid compatibility with third-party 503 software that expects this naming scheme in uname(3). Little-endian 504 settings are unchanged. If you are updating a big-endian mips64 machine 505 from before this change, you may need to set MACHINE_ARCH=mips64 in 506 your environment before the new build system will recognize your machine. 507 50820120306: 509 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 510 platforms. 511 51220120229: 513 Now unix domain sockets behave "as expected" on nullfs(5). Previously 514 nullfs(5) did not pass through all behaviours to the underlying layer, 515 as a result if we bound to a socket on the lower layer we could connect 516 only to the lower path; if we bound to the upper layer we could connect 517 only to the upper path. The new behavior is one can connect to both the 518 lower and the upper paths regardless what layer path one binds to. 519 52020120211: 521 The getifaddrs upgrade path broken with 20111215 has been restored. 522 If you have upgraded in between 20111215 and 20120209 you need to 523 recompile libc again with your kernel. You still need to recompile 524 world to be able to configure CARP but this restriction already 525 comes from 20111215. 526 52720120114: 528 The set_rcvar() function has been removed from /etc/rc.subr. All 529 base and ports rc.d scripts have been updated, so if you have a 530 port installed with a script in /usr/local/etc/rc.d you can either 531 hand-edit the rcvar= line, or reinstall the port. 532 533 An easy way to handle the mass-update of /etc/rc.d: 534 rm /etc/rc.d/* && mergemaster -i 535 53620120109: 537 panic(9) now stops other CPUs in the SMP systems, disables interrupts 538 on the current CPU and prevents other threads from running. 539 This behavior can be reverted using the kern.stop_scheduler_on_panic 540 tunable/sysctl. 541 The new behavior can be incompatible with kern.sync_on_panic. 542 54320111215: 544 The carp(4) facility has been changed significantly. Configuration 545 of the CARP protocol via ifconfig(8) has changed, as well as format 546 of CARP events submitted to devd(8) has changed. See manual pages 547 for more information. The arpbalance feature of carp(4) is currently 548 not supported anymore. 549 550 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 551 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 552 need to be recompiled. 553 55420111122: 555 The acpi_wmi(4) status device /dev/wmistat has been renamed to 556 /dev/wmistat0. 557 55820111108: 559 The option VFS_ALLOW_NONMPSAFE option has been added in order to 560 explicitely support non-MPSAFE filesystems. 561 It is on by default for all supported platform at this present 562 time. 563 56420111101: 565 The broken amd(4) driver has been replaced with esp(4) in the amd64, 566 i386 and pc98 GENERIC kernel configuration files. 567 56820110930: 569 sysinstall has been removed 570 57120110923: 572 The stable/9 branch created in subversion. This corresponds to the 573 RELENG_9 branch in CVS. 574 57520110913: 576 This commit modifies vfs_register() so that it uses a hash 577 calculation to set vfc_typenum, which is enabled by default. 578 The first time a system is booted after this change, the 579 vfc_typenum values will change for all file systems. The 580 main effect of this is a change to the NFS server file handles 581 for file systems that use vfc_typenum in their fsid, such as ZFS. 582 It will, however, prevent vfc_typenum from changing when file 583 systems are loaded in a different order for subsequent reboots. 584 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 585 until you are ready to remount all NFS clients after a reboot. 586 58720110828: 588 Bump the shared library version numbers for libraries that 589 do not use symbol versioning, have changed the ABI compared 590 to stable/8 and which shared library version was not bumped. 591 Done as part of 9.0-RELEASE cycle. 592 59320110815: 594 During the merge of Capsicum features, the fget(9) KPI was modified. 595 This may require the rebuilding of out-of-tree device drivers -- 596 issues have been reported specifically with the nVidia device driver. 597 __FreeBSD_version is bumped to 900041. 598 599 Also, there is a period between 20110811 and 20110814 where the 600 special devices /dev/{stdin,stdout,stderr} did not work correctly. 601 Building world from a kernel during that window may not work. 602 60320110628: 604 The packet filter (pf) code has been updated to OpenBSD 4.5. 605 You need to update userland tools to be in sync with kernel. 606 This update breaks backward compatibility with earlier pfsync(4) 607 versions. Care must be taken when updating redundant firewall setups. 608 60920110608: 610 The following sysctls and tunables are retired on x86 platforms: 611 machdep.hlt_cpus 612 machdep.hlt_logical_cpus 613 The following sysctl is retired: 614 machdep.hyperthreading_allowed 615 The sysctls were supposed to provide a way to dynamically offline and 616 online selected CPUs on x86 platforms, but the implementation has not 617 been reliable especially with SCHED_ULE scheduler. 618 machdep.hyperthreading_allowed tunable is still available to ignore 619 hyperthreading CPUs at OS level. 620 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 621 where X is an APIC ID of a CPU. Be advised, though, that disabling 622 CPUs in non-uniform fashion will result in non-uniform topology and 623 may lead to sub-optimal system performance with SCHED_ULE, which is 624 a default scheduler. 625 62620110607: 627 cpumask_t type is retired and cpuset_t is used in order to describe 628 a mask of CPUs. 629 63020110531: 631 Changes to ifconfig(8) for dynamic address family detection mandate 632 that you are running a kernel of 20110525 or later. Make sure to 633 follow the update procedure to boot a new kernel before installing 634 world. 635 63620110513: 637 Support for sun4v architecture is officially dropped 638 63920110503: 640 Several KPI breaking changes have been committed to the mii(4) layer, 641 the PHY drivers and consequently some Ethernet drivers using mii(4). 642 This means that miibus.ko and the modules of the affected Ethernet 643 drivers need to be recompiled. 644 645 Note to kernel developers: Given that the OUI bit reversion problem 646 was fixed as part of these changes all mii(4) commits related to OUIs, 647 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 648 handling, no longer can be merged verbatim to stable/8 and previous 649 branches. 650 65120110430: 652 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 653 into their kernel configurations along with 'device pci'. 654 65520110427: 656 The default NFS client is now the new NFS client, so fstype "newnfs" 657 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 658 Although mounts via fstype "nfs" will usually work without userland 659 changes, it is recommended that the mount(8) and mount_nfs(8) 660 commands be rebuilt from sources and that a link to mount_nfs called 661 mount_oldnfs be created. The new client is compiled into the 662 kernel with "options NFSCL" and this is needed for diskless root 663 file systems. The GENERIC kernel configs have been changed to use 664 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 665 To use the regular/old client, you can "mount -t oldnfs ...". For 666 a diskless root file system, you must also include a line like: 667 668 vfs.root.mountfrom="oldnfs:" 669 670 in the boot/loader.conf on the root fs on the NFS server to make 671 a diskless root fs use the old client. 672 67320110424: 674 The GENERIC kernels for all architectures now default to the new 675 CAM-based ATA stack. It means that all legacy ATA drivers were 676 removed and replaced by respective CAM drivers. If you are using 677 ATA device names in /etc/fstab or other places, make sure to update 678 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 679 where 'Y's are the sequential numbers starting from zero for each type 680 in order of detection, unless configured otherwise with tunables, 681 see cam(4)). There will be symbolic links created in /dev/ to map 682 old adX devices to the respective adaY. They should provide basic 683 compatibility for file systems mounting in most cases, but they do 684 not support old user-level APIs and do not have respective providers 685 in GEOM. Consider using updated management tools with new device names. 686 687 It is possible to load devices ahci, ata, siis and mvs as modules, 688 but option ATA_CAM should remain in kernel configuration to make ata 689 module work as CAM driver supporting legacy ATA controllers. Device ata 690 still can be used in modular fashion (atacore + ...). Modules atadisk 691 and atapi* are not used and won't affect operation in ATA_CAM mode. 692 Note that to use CAM-based ATA kernel should include CAM devices 693 scbus, pass, da (or explicitly ada), cd and optionally others. All of 694 them are parts of the cam module. 695 696 ataraid(4) functionality is now supported by the RAID GEOM class. 697 To use it you can load geom_raid kernel module and use graid(8) tool 698 for management. Instead of /dev/arX device names, use /dev/raid/rX. 699 700 No kernel config options or code have been removed, so if a problem 701 arises, please report it and optionally revert to the old ATA stack. 702 In order to do it you can remove from the kernel config: 703 options ATA_CAM 704 device ahci 705 device mvs 706 device siis 707 , and instead add back: 708 device atadisk # ATA disk drives 709 device ataraid # ATA RAID drives 710 device atapicd # ATAPI CDROM drives 711 device atapifd # ATAPI floppy drives 712 device atapist # ATAPI tape drives 713 71420110423: 715 The default NFS server has been changed to the new server, which 716 was referred to as the experimental server. If you need to switch 717 back to the old NFS server, you must now put the "-o" option on 718 both the mountd and nfsd commands. This can be done using the 719 mountd_flags and nfs_server_flags rc.conf variables until an 720 update to the rc scripts is committed, which is coming soon. 721 72220110418: 723 The GNU Objective-C runtime library (libobjc), and other Objective-C 724 related components have been removed from the base system. If you 725 require an Objective-C library, please use one of the available ports. 726 72720110331: 728 ath(4) has been split into bus- and device- modules. if_ath contains 729 the HAL, the TX rate control and the network device code. if_ath_pci 730 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 731 contains the AHB glue. Users need to load both if_ath_pci and if_ath 732 in order to use ath on everything else. 733 734 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 735 need to load if_ath and if_ath_pci for ath(4) operation. 736 73720110314: 738 As part of the replacement of sysinstall, the process of building 739 release media has changed significantly. For details, please re-read 740 release(7), which has been updated to reflect the new build process. 741 74220110218: 743 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 744 is the last available version under GPLv2. It brings a number of new 745 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 746 4.1 and SSE 4.2), better support for powerpc64, a number of new 747 directives, and lots of other small improvements. See the ChangeLog 748 file in contrib/binutils for the full details. 749 75020110218: 751 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 752 compliant, and will now use half of hash for authentication. 753 This will break interoperability with all stacks (including all 754 actual FreeBSD versions) who implement 755 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 756 authentication). 757 The only workaround with such peers is to use another HMAC 758 algorithm for IPsec ("phase 2") authentication. 759 76020110207: 761 Remove the uio_yield prototype and symbol. This function has 762 been misnamed since it was introduced and should not be 763 globally exposed with this name. The equivalent functionality 764 is now available using kern_yield(curthread->td_user_pri). 765 The function remains undocumented. 766 76720110112: 768 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 769 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 770 for scalar sysctls is defined but disabled. Code that needs 771 UQUAD to pass the type checking that must compile on older 772 systems where the define is not present can check against 773 __FreeBSD_version >= 900030. 774 775 The system dialog(1) has been replaced with a new version previously 776 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 777 with the previous version, but the libdialog associated with it has 778 a largely incompatible API. As such, the original version of libdialog 779 will be kept temporarily as libodialog, until its base system consumers 780 are replaced or updated. Bump __FreeBSD_version to 900030. 781 78220110103: 783 If you are trying to run make universe on a -stable system, and you get 784 the following warning: 785 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 786 unknown. config(8) likely too old." 787 or something similar to it, then you must upgrade your -stable system 788 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 789 stable/8) or build the config from the latest stable/8 branch and 790 install it on your system. 791 792 Prior to this date, building a current universe on 8-stable system from 793 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 794 error in the first kernel build phase. A new config on those old 795 systems will fix that problem for older versions of -current. 796 79720101228: 798 The TCP stack has been modified to allow Khelp modules to interact with 799 it via helper hook points and store per-connection data in the TCP 800 control block. Bump __FreeBSD_version to 900029. User space tools that 801 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 802 be recompiled. 803 80420101114: 805 Generic IEEE 802.3 annex 31B full duplex flow control support has been 806 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 807 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 808 to take advantage of it instead of using custom implementations. This 809 means that these drivers now no longer unconditionally advertise 810 support for flow control but only do so if flow control is a selected 811 media option. This was implemented in the generic support that way in 812 order to allow flow control to be switched on and off via ifconfig(8) 813 with the PHY specific default to typically off in order to protect 814 from unwanted effects. Consequently, if you used flow control with 815 one of the above mentioned drivers you now need to explicitly enable 816 it, for example via: 817 ifconfig bge0 media auto mediaopt flowcontrol 818 819 Along with the above mentioned changes generic support for setting 820 1000baseT master mode also has been added and brgphy(4), ciphy(4), 821 e1000phy(4) as well as ip1000phy(4) have been converted to take 822 advantage of it. This means that these drivers now no longer take the 823 link0 parameter for selecting master mode but the master media option 824 has to be used instead, for example like in the following: 825 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 826 827 Selection of master mode now is also available with all other PHY 828 drivers supporting 1000baseT. 829 83020101111: 831 The TCP stack has received a significant update to add support for 832 modularised congestion control and generally improve the clarity of 833 congestion control decisions. Bump __FreeBSD_version to 900025. User 834 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 835 sockstat) need to be recompiled. 836 83720101002: 838 The man(1) utility has been replaced by a new version that no longer 839 uses /etc/manpath.config. Please consult man.conf(5) for how to 840 migrate local entries to the new format. 841 84220100928: 843 The copyright strings printed by login(1) and sshd(8) at the time of a 844 new connection have been removed to follow other operating systems and 845 upstream sshd. 846 84720100915: 848 A workaround for a fixed ld bug has been removed in kernel code, 849 so make sure that your system ld is built from sources after 850 revision 210245 from 2010-07-19 (r211583 if building head kernel 851 on stable/8, r211584 for stable/7; both from 2010-08-21). 852 A symptom of incorrect ld version is different addresses for 853 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 854 85520100913: 856 The $ipv6_prefer variable in rc.conf(5) has been split into 857 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 858 859 The $ip6addrctl_policy is a variable to choose a pre-defined 860 address selection policy set by ip6addrctl(8). A value 861 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 862 default is "AUTO". 863 864 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 865 flag (see an entry of 20090926) is set on an interface with no 866 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 867 security reason. If you want IPv6 link-local address on all 868 interfaces by default, set this to "YES". 869 870 The old ipv6_prefer="YES" is equivalent to 871 ipv6_activate_all_interfaces="YES" and 872 ip6addrctl_policy="ipv6_prefer". 873 87420100913: 875 DTrace has grown support for userland tracing. Due to this, DTrace is 876 now i386 and amd64 only. 877 dtruss(1) is now installed by default on those systems and a new 878 kernel module is needed for userland tracing: fasttrap. 879 No changes to your kernel config file are necessary to enable 880 userland tracing, but you might consider adding 'STRIP=' and 881 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 882 to have informative userland stack traces in DTrace (ustack). 883 88420100725: 885 The acpi_aiboost(4) driver has been removed in favor of the new 886 aibs(4) driver. You should update your kernel configuration file. 887 88820100722: 889 BSD grep has been imported to the base system and it is built by 890 default. It is completely BSD licensed, highly GNU-compatible, uses 891 less memory than its GNU counterpart and has a small codebase. 892 However, it is slower than its GNU counterpart, which is mostly 893 noticeable for larger searches, for smaller ones it is measurable 894 but not significant. The reason is complex, the most important factor 895 is that we lack a modern and efficient regex library and GNU 896 overcomes this by optimizing the searches internally. Future work 897 on improving the regex performance is planned, for the meantime, 898 users that need better performance, can build GNU grep instead by 899 setting the WITH_GNU_GREP knob. 900 90120100713: 902 Due to the import of powerpc64 support, all existing powerpc kernel 903 configuration files must be updated with a machine directive like this: 904 machine powerpc powerpc 905 906 In addition, an updated config(8) is required to build powerpc kernels 907 after this change. 908 90920100713: 910 A new version of ZFS (version 15) has been merged to -HEAD. 911 This version uses a python library for the following subcommands: 912 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 913 For full functionality of these commands the following port must 914 be installed: sysutils/py-zfs 915 91620100429: 917 'vm_page's are now hashed by physical address to an array of mutexes. 918 Currently this is only used to serialize access to hold_count. Over 919 time the page queue mutex will be peeled away. This changes the size 920 of pmap on every architecture. And requires all callers of vm_page_hold 921 and vm_page_unhold to be updated. 922 92320100402: 924 WITH_CTF can now be specified in src.conf (not recommended, there 925 are some problems with static executables), make.conf (would also 926 affect ports which do not use GNU make and do not override the 927 compile targets) or in the kernel config (via "makeoptions 928 WITH_CTF=yes"). 929 When WITH_CTF was specified there before this was silently ignored, 930 so make sure that WITH_CTF is not used in places which could lead 931 to unwanted behavior. 932 93320100311: 934 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 935 to allow 32-bit compatibility on non-x86 platforms. All kernel 936 configurations on amd64 and ia64 platforms using these options must 937 be modified accordingly. 938 93920100113: 940 The utmp user accounting database has been replaced with utmpx, 941 the user accounting interface standardized by POSIX. 942 Unfortunately the semantics of utmp and utmpx don't match, 943 making it practically impossible to support both interfaces. 944 The user accounting database is used by tools like finger(1), 945 last(1), talk(1), w(1) and ac(8). 946 947 All applications in the base system use utmpx. This means only 948 local binaries (e.g. from the ports tree) may still use these 949 utmp database files. These applications must be rebuilt to make 950 use of utmpx. 951 952 After the system has been upgraded, it is safe to remove the old 953 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 954 assuming their contents is of no importance anymore. Old wtmp 955 databases can only be used by last(1) and ac(8) after they have 956 been converted to the new format using wtmpcvt(1). 957 95820100108: 959 Introduce the kernel thread "deadlock resolver" (which can be enabled 960 via the DEADLKRES option, see NOTES for more details) and the 961 sleepq_type() function for sleepqueues. 962 96320091202: 964 The rc.firewall and rc.firewall6 were unified, and 965 rc.firewall6 and rc.d/ip6fw were removed. 966 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 967 variables are obsoleted. Instead, the following new rc 968 variables are added to rc.d/ipfw: 969 970 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 971 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 972 firewall_simple_onet_ipv6, firewall_trusted_ipv6 973 974 The meanings correspond to the relevant IPv4 variables. 975 97620091125: 977 8.0-RELEASE. 978 97920091113: 980 The default terminal emulation for syscons(4) has been changed 981 from cons25 to xterm on all platforms except pc98. This means 982 that the /etc/ttys file needs to be updated to ensure correct 983 operation of applications on the console. 984 985 The terminal emulation style can be toggled per window by using 986 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 987 options can be used to change the compile-time default back to 988 cons25. 989 990 To prevent graphical artifacts, make sure the TERM environment 991 variable is set to match the terminal emulation that is being 992 performed by syscons(4). 993 99420091109: 995 The layout of the structure ieee80211req_scan_result has changed. 996 Applications that require wireless scan results (e.g. ifconfig(8)) 997 from net80211 need to be recompiled. 998 999 Applications such as wpa_supplicant(8) may require a full world 1000 build without using NO_CLEAN in order to get synchronized with the 1001 new structure. 1002 100320091025: 1004 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1005 There's one kernel module for each firmware. Adding "device iwnfw" 1006 to the kernel configuration file means including all three firmware 1007 images inside the kernel. If you want to include just the one for 1008 your wireless card, use the devices iwn4965fw, iwn5000fw or 1009 iwn5150fw. 1010 101120090926: 1012 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1013 into rc.d/netif. The changes are the following: 1014 1015 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1016 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1017 Note that both variables need the "inet6" keyword at the head. 1018 1019 Do not set $ipv6_network_interfaces manually if you do not 1020 understand what you are doing. It is not needed in most cases. 1021 1022 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1023 they are obsolete. 1024 1025 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1026 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1027 1028 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1029 all configured interfaces have "inet6 accept_rtadv" in the 1030 $ifconfig_IF_ipv6. These are for backward compatibility. 1031 1032 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1033 functionality of interfaces with no corresponding 1034 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1035 and the default address selection policy of ip6addrctl(8) 1036 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1037 Note that if you want to configure IPv6 functionality on the 1038 disabled interfaces after boot, first you need to clear the flag by 1039 using ifconfig(8) like: 1040 1041 ifconfig em0 inet6 -ifdisabled 1042 1043 If YES, the default address selection policy is set as 1044 IPv6-preferred. 1045 1046 The default value of $ipv6_prefer is NO. 1047 1048 4. If your system need to receive Router Advertisement messages, 1049 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1050 scripts automatically invoke rtsol(8) when the interface becomes 1051 UP. The Router Advertisement messages are used for SLAAC 1052 (State-Less Address AutoConfiguration). 1053 105420090922: 1055 802.11s D3.03 support was committed. This is incompatible with the 1056 previous code, which was based on D3.0. 1057 105820090912: 1059 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1060 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1061 control whether accepting Router Advertisement messages or not. 1062 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1063 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1064 The ifconfig(8) utility now supports these flags. 1065 106620090910: 1067 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1068 mount(8) and -a option for df(1) to see them. 1069 107020090825: 1071 The old tunable hw.bus.devctl_disable has been superseded by 1072 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1073 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1074 is 1000. 1075 107620090813: 1077 Remove the option STOP_NMI. The default action is now to use NMI only 1078 for KDB via the newly introduced function stop_cpus_hard() and 1079 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1080 108120090803: 1082 The stable/8 branch created in subversion. This corresponds to the 1083 RELENG_8 branch in CVS. 1084 108520090719: 1086 Bump the shared library version numbers for all libraries that do not 1087 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1088 __FreeBSD_version to 800105. 1089 109020090714: 1091 Due to changes in the implementation of virtual network stack support, 1092 all network-related kernel modules must be recompiled. As this change 1093 breaks the ABI, bump __FreeBSD_version to 800104. 1094 109520090713: 1096 The TOE interface to the TCP syncache has been modified to remove 1097 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1098 The cxgb driver is the only TOE consumer affected by this change, and 1099 needs to be recompiled along with the kernel. As this change breaks 1100 the ABI, bump __FreeBSD_version to 800103. 1101 110220090712: 1103 Padding has been added to struct tcpcb, sackhint and tcpstat in 1104 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1105 maintaining the ABI. However, this change breaks the ABI, so bump 1106 __FreeBSD_version to 800102. User space tools that rely on the size of 1107 any of these structs (e.g. sockstat) need to be recompiled. 1108 110920090630: 1110 The NFS_LEGACYRPC option has been removed along with the old kernel 1111 RPC implementation that this option selected. Kernel configurations 1112 may need to be adjusted. 1113 111420090629: 1115 The network interface device nodes at /dev/net/<interface> have been 1116 removed. All ioctl operations can be performed the normal way using 1117 routing sockets. The kqueue functionality can generally be replaced 1118 with routing sockets. 1119 112020090628: 1121 The documentation from the FreeBSD Documentation Project (Handbook, 1122 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1123 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1124 112520090624: 1126 The ABI of various structures related to the SYSV IPC API have been 1127 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1128 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1129 800100. 1130 113120090622: 1132 Layout of struct vnet has changed as routing related variables were 1133 moved to their own Vimage module. Modules need to be recompiled. Bump 1134 __FreeBSD_version to 800099. 1135 113620090619: 1137 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1138 respectively. As long as no more than 16 groups per process are used, 1139 no changes should be visible. When more than 16 groups are used, old 1140 binaries may fail if they call getgroups() or getgrouplist() with 1141 statically sized storage. Recompiling will work around this, but 1142 applications should be modified to use dynamically allocated storage 1143 for group arrays as POSIX.1-2008 does not cap an implementation's 1144 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1145 1146 NFS and portalfs mounts may also be affected as the list of groups is 1147 truncated to 16. Users of NFS who use more than 16 groups, should 1148 take care that negative group permissions are not used on the exported 1149 file systems as they will not be reliable unless a GSSAPI based 1150 authentication method is used. 1151 115220090616: 1153 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1154 option compiles in the support for adaptive spinning for lockmgrs 1155 which want to enable it. The lockinit() function now accepts the flag 1156 LK_ADAPTIVE in order to make the lock object subject to adaptive 1157 spinning when both held in write and read mode. 1158 115920090613: 1160 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1161 changed. User applications that use this ioctl need to be rebuilt. 1162 116320090611: 1164 The layout of struct thread has changed. Kernel and modules need to 1165 be rebuilt. 1166 116720090608: 1168 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1169 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1170 117120090602: 1172 window(1) has been removed from the base system. It can now be 1173 installed from ports. The port is called misc/window. 1174 117520090601: 1176 The way we are storing and accessing `routing table' entries has 1177 changed. Programs reading the FIB, like netstat, need to be 1178 re-compiled. 1179 118020090601: 1181 A new netisr implementation has been added for FreeBSD 8. Network 1182 file system modules, such as igmp, ipdivert, and others, should be 1183 rebuilt. 1184 Bump __FreeBSD_version to 800096. 1185 118620090530: 1187 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1188 more valid. 1189 119020090530: 1191 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1192 Bump __FreeBSD_version to 800094. 1193 119420090529: 1195 Add mnt_xflag field to 'struct mount'. File system modules need to be 1196 rebuilt. 1197 Bump __FreeBSD_version to 800093. 1198 119920090528: 1200 The compiling option ADAPTIVE_SX has been retired while it has been 1201 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1202 The KPI for sx_init_flags() changes as accepting flags: 1203 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1204 been introduced in order to handle the reversed logic. 1205 Bump __FreeBSD_version to 800092. 1206 120720090527: 1208 Add support for hierarchical jails. Remove global securelevel. 1209 Bump __FreeBSD_version to 800091. 1210 121120090523: 1212 The layout of struct vnet_net has changed, therefore modules 1213 need to be rebuilt. 1214 Bump __FreeBSD_version to 800090. 1215 121620090523: 1217 The newly imported zic(8) produces a new format in the output. Please 1218 run tzsetup(8) to install the newly created data to /etc/localtime. 1219 122020090520: 1221 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1222 hw.usb.* and is now consistent again with previous releases. 1223 122420090520: 1225 802.11 monitor mode support was revised and driver api's were changed. 1226 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1227 of DLT_IEEE802_11. No user-visible data structures were changed but 1228 applications that use DLT_IEEE802_11 may require changes. 1229 Bump __FreeBSD_version to 800088. 1230 123120090430: 1232 The layout of the following structs has changed: sysctl_oid, 1233 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1234 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1235 panics may be experienced. World rebuild is required for 1236 correctly checking networking state from userland. 1237 Bump __FreeBSD_version to 800085. 1238 123920090429: 1240 MLDv2 and Source-Specific Multicast (SSM) have been merged 1241 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1242 The implementation of SSM within FreeBSD's IPv6 stack closely 1243 follows the IPv4 implementation. 1244 1245 For kernel developers: 1246 1247 * The most important changes are that the ip6_output() and 1248 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1249 and this lock has been downgraded to a non-recursive mutex. 1250 1251 * As with the changes to the IPv4 stack to support SSM, filtering 1252 of inbound multicast traffic must now be performed by transport 1253 protocols within the IPv6 stack. This does not apply to TCP and 1254 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1255 1256 * The KPIs used by IPv6 multicast are similar to those used by 1257 the IPv4 stack, with the following differences: 1258 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1259 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1260 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1261 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1262 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1263 for MLDv1 have an additional 'timer' argument which is used to 1264 jitter the initial membership report for the solicited-node 1265 multicast membership on-link. 1266 * This is not strictly needed for MLDv2, which already jitters 1267 its report transmissions. However, the 'timer' argument is 1268 preserved in case MLDv1 is active on the interface. 1269 1270 * The KAME linked-list based IPv6 membership implementation has 1271 been refactored to use a vector similar to that used by the IPv4 1272 stack. 1273 Code which maintains a list of its own multicast memberships 1274 internally, e.g. carp, has been updated to reflect the new 1275 semantics. 1276 1277 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1278 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1279 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1280 implementation constraint which needs to be addressed in HEAD. 1281 1282 For application developers: 1283 1284 * The changes are broadly similar to those made for the IPv4 1285 stack. 1286 1287 * The use of IPv4 and IPv6 multicast socket options on the same 1288 socket, using mapped addresses, HAS NOT been tested or supported. 1289 1290 * There are a number of issues with the implementation of various 1291 IPv6 multicast APIs which need to be resolved in the API surface 1292 before the implementation is fully compatible with KAME userland 1293 use, and these are mostly to do with interface index treatment. 1294 1295 * The literature available discusses the use of either the delta / ASM 1296 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1297 using setsourcefilter(3)/getsourcefilter(3). For more information 1298 please refer to RFC 3768, 'Socket Interface Extensions for 1299 Multicast Source Filters'. 1300 1301 * Applications which use the published RFC 3678 APIs should be fine. 1302 1303 For systems administrators: 1304 1305 * The mtest(8) utility has been refactored to support IPv6, in 1306 addition to IPv4. Interface addresses are no longer accepted 1307 as arguments, their names must be used instead. The utility 1308 will map the interface name to its first IPv4 address as 1309 returned by getifaddrs(3). 1310 1311 * The ifmcstat(8) utility has also been updated to print the MLDv2 1312 endpoint state and source filter lists via sysctl(3). 1313 1314 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1315 loopback of IPv6 multicast datagrams by default; it defaults to 1 1316 to preserve the existing behaviour. Disabling multicast loopback is 1317 recommended for optimal system performance. 1318 1319 * The IPv6 MROUTING code has been changed to examine this sysctl 1320 instead of attempting to perform a group lookup before looping 1321 back forwarded datagrams. 1322 1323 Bump __FreeBSD_version to 800084. 1324 132520090422: 1326 Implement low-level Bluetooth HCI API. 1327 Bump __FreeBSD_version to 800083. 1328 132920090419: 1330 The layout of struct malloc_type, used by modules to register new 1331 memory allocation types, has changed. Most modules will need to 1332 be rebuilt or panics may be experienced. 1333 Bump __FreeBSD_version to 800081. 1334 133520090415: 1336 Anticipate overflowing inp_flags - add inp_flags2. 1337 This changes most offsets in inpcb, so checking v4 connection 1338 state will require a world rebuild. 1339 Bump __FreeBSD_version to 800080. 1340 134120090415: 1342 Add an llentry to struct route and struct route_in6. Modules 1343 embedding a struct route will need to be recompiled. 1344 Bump __FreeBSD_version to 800079. 1345 134620090414: 1347 The size of rt_metrics_lite and by extension rtentry has changed. 1348 Networking administration apps will need to be recompiled. 1349 The route command now supports show as an alias for get, weighting 1350 of routes, sticky and nostick flags to alter the behavior of stateful 1351 load balancing. 1352 Bump __FreeBSD_version to 800078. 1353 135420090408: 1355 Do not use Giant for kbdmux(4) locking. This is wrong and 1356 apparently causing more problems than it solves. This will 1357 re-open the issue where interrupt handlers may race with 1358 kbdmux(4) in polling mode. Typical symptoms include (but 1359 not limited to) duplicated and/or missing characters when 1360 low level console functions (such as gets) are used while 1361 interrupts are enabled (for example geli password prompt, 1362 mountroot prompt etc.). Disabling kbdmux(4) may help. 1363 136420090407: 1365 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1366 kernel modules referencing any of the above need to be recompiled. 1367 Bump __FreeBSD_version to 800075. 1368 136920090320: 1370 GEOM_PART has become the default partition slicer for storage devices, 1371 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1372 introduces some changes: 1373 1374 MSDOS/EBR: the devices created from MSDOS extended partition entries 1375 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1376 to devices with offset-based names. fstabs may need to be modified. 1377 1378 BSD: the "geometry does not match label" warning is harmless in most 1379 cases but it points to problems in file system misalignment with 1380 disk geometry. The "c" partition is now implicit, covers the whole 1381 top-level drive and cannot be (mis)used by users. 1382 1383 General: Kernel dumps are now not allowed to be written to devices 1384 whose partition types indicate they are meant to be used for file 1385 systems (or, in case of MSDOS partitions, as something else than 1386 the "386BSD" type). 1387 1388 Most of these changes date approximately from 200812. 1389 139020090319: 1391 The uscanner(4) driver has been removed from the kernel. This follows 1392 Linux removing theirs in 2.6 and making libusb the default interface 1393 (supported by sane). 1394 139520090319: 1396 The multicast forwarding code has been cleaned up. netstat(1) 1397 only relies on KVM now for printing bandwidth upcall meters. 1398 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1399 ip6_mroute_mod respectively. The config(5) options for statically 1400 compiling this code remain the same, i.e. 'options MROUTING'. 1401 140220090315: 1403 Support for the IFF_NEEDSGIANT network interface flag has been 1404 removed, which means that non-MPSAFE network device drivers are no 1405 longer supported. In particular, if_ar, if_sr, and network device 1406 drivers from the old (legacy) USB stack can no longer be built or 1407 used. 1408 140920090313: 1410 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1411 a bunch of new language catalog files have also been added. 1412 This means that some common libc messages are now localized and 1413 they depend on the LC_MESSAGES environmental variable. 1414 141520090313: 1416 The k8temp(4) driver has been renamed to amdtemp(4) since 1417 support for Family 10 and Family 11 CPU families was added. 1418 141920090309: 1420 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1421 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1422 1423 For kernel developers, the most important changes are that the 1424 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1425 and this lock has been downgraded to a non-recursive mutex. 1426 1427 Transport protocols (UDP, Raw IP) are now responsible for filtering 1428 inbound multicast traffic according to group membership and source 1429 filters. The imo_multicast_filter() KPI exists for this purpose. 1430 Transports which do not use multicast (SCTP, TCP) already reject 1431 multicast by default. Forwarding and receive performance may improve 1432 as a mutex acquisition is no longer needed in the ip_input() 1433 low-level input path. in_addmulti() and in_delmulti() are shimmed 1434 to new KPIs which exist to support SSM in-kernel. 1435 1436 For application developers, it is recommended that loopback of 1437 multicast datagrams be disabled for best performance, as this 1438 will still cause the lock to be taken for each looped-back 1439 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1440 be tuned to 0 to disable loopback by default; it defaults to 1 1441 to preserve the existing behaviour. 1442 1443 For systems administrators, to obtain best performance with 1444 multicast reception and multiple groups, it is always recommended 1445 that a card with a suitably precise hash filter is used. Hash 1446 collisions will still result in the lock being taken within the 1447 transport protocol input path to check group membership. 1448 1449 If deploying FreeBSD in an environment with IGMP snooping switches, 1450 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1451 enabled; this forces 224.0.0.0/24 group membership to be announced 1452 via IGMP. 1453 1454 The size of 'struct igmpstat' has changed; netstat needs to be 1455 recompiled to reflect this. 1456 Bump __FreeBSD_version to 800070. 1457 145820090309: 1459 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1460 updated to use it. This requires a buildworld/installworld in order to 1461 update the library and dependencies (usbconfig, etc). Its advisable to 1462 rebuild all ports which uses libusb. More specific directions are given 1463 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1464 libusb are no longer required and can be removed. 1465 146620090302: 1467 A workaround is committed to allow the creation of System V shared 1468 memory segment of size > 2 GB on the 64-bit architectures. 1469 Due to a limitation of the existing ABI, the shm_segsz member 1470 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1471 wrong for large segments. Note that limits must be explicitly 1472 raised to allow such segments to be created. 1473 147420090301: 1475 The layout of struct ifnet has changed, requiring a rebuild of all 1476 network device driver modules. 1477 147820090227: 1479 The /dev handling for the new USB stack has changed, a 1480 buildworld/installworld is required for libusb20. 1481 148220090223: 1483 The new USB2 stack has now been permanently moved in and all kernel and 1484 module names reverted to their previous values (eg, usb, ehci, ohci, 1485 ums, ...). The old usb stack can be compiled in by prefixing the name 1486 with the letter 'o', the old usb modules have been removed. 1487 Updating entry 20090216 for xorg and 20090215 for libmap may still 1488 apply. 1489 149020090217: 1491 The rc.conf(5) option if_up_delay has been renamed to 1492 defaultroute_delay to better reflect its purpose. If you have 1493 customized this setting in /etc/rc.conf you need to update it to 1494 use the new name. 1495 149620090216: 1497 xorg 7.4 wants to configure its input devices via hald which does not 1498 yet work with USB2. If the keyboard/mouse does not work in xorg then 1499 add 1500 Option "AllowEmptyInput" "off" 1501 to your ServerLayout section. This will cause X to use the configured 1502 kbd and mouse sections from your xorg.conf. 1503 150420090215: 1505 The GENERIC kernels for all architectures now default to the new USB2 1506 stack. No kernel config options or code have been removed so if a 1507 problem arises please report it and optionally revert to the old USB 1508 stack. If you are loading USB kernel modules or have a custom kernel 1509 that includes GENERIC then ensure that usb names are also changed over, 1510 eg uftdi -> usb2_serial_ftdi. 1511 1512 Older programs linked against the ports libusb 0.1 need to be 1513 redirected to the new stack's libusb20. /etc/libmap.conf can 1514 be used for this: 1515 # Map old usb library to new one for usb2 stack 1516 libusb-0.1.so.8 libusb20.so.1 1517 151820090209: 1519 All USB ethernet devices now attach as interfaces under the name ueN 1520 (eg. ue0). This is to provide a predictable name as vendors often 1521 change usb chipsets in a product without notice. 1522 152320090203: 1524 The ichsmb(4) driver has been changed to require SMBus slave 1525 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1526 All of the other SMBus controller drivers require left-justified 1527 slave addresses, so this change makes all the drivers provide the 1528 same interface. 1529 153020090201: 1531 INET6 statistics (struct ip6stat) was updated. 1532 netstat(1) needs to be recompiled. 1533 153420090119: 1535 NTFS has been removed from GENERIC kernel on amd64 to match 1536 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1537 will load ntfs.ko module automatically when NTFS support is 1538 actually needed, unless ntfs.ko is not installed or security 1539 level prohibits loading kernel modules. If either is the case, 1540 "options NTFS" has to be added into kernel config. 1541 154220090115: 1543 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1544 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1545 800061. User space tools that rely on the size of struct tcpcb in 1546 tcp_var.h (e.g. sockstat) need to be recompiled. 1547 154820081225: 1549 ng_tty(4) module updated to match the new TTY subsystem. 1550 Due to API change, user-level applications must be updated. 1551 New API support added to mpd5 CVS and expected to be present 1552 in next mpd5.3 release. 1553 155420081219: 1555 With __FreeBSD_version 800060 the makefs tool is part of 1556 the base system (it was a port). 1557 155820081216: 1559 The afdata and ifnet locks have been changed from mutexes to 1560 rwlocks, network modules will need to be re-compiled. 1561 156220081214: 1563 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1564 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1565 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1566 architecture and 40 bytes on 64-bit architecture. The userland 1567 applications "arp" and "ndp" have been updated accordingly. 1568 The output from "netstat -r" shows only routing entries and 1569 none of the L2 information. 1570 157120081130: 1572 __FreeBSD_version 800057 marks the switchover from the 1573 binary ath hal to source code. Users must add the line: 1574 1575 options AH_SUPPORT_AR5416 1576 1577 to their kernel config files when specifying: 1578 1579 device ath_hal 1580 1581 The ath_hal module no longer exists; the code is now compiled 1582 together with the driver in the ath module. It is now 1583 possible to tailor chip support (i.e. reduce the set of chips 1584 and thereby the code size); consult ath_hal(4) for details. 1585 158620081121: 1587 __FreeBSD_version 800054 adds memory barriers to 1588 <machine/atomic.h>, new interfaces to ifnet to facilitate 1589 multiple hardware transmit queues for cards that support 1590 them, and a lock-less ring-buffer implementation to 1591 enable drivers to more efficiently manage queueing of 1592 packets. 1593 159420081117: 1595 A new version of ZFS (version 13) has been merged to -HEAD. 1596 This version has zpool attribute "listsnapshots" off by 1597 default, which means "zfs list" does not show snapshots, 1598 and is the same as Solaris behavior. 1599 160020081028: 1601 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1602 160320081009: 1604 The uhci, ohci, ehci and slhci USB Host controller drivers have 1605 been put into separate modules. If you load the usb module 1606 separately through loader.conf you will need to load the 1607 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1608 controller add the following to loader.conf: 1609 1610 uhci_load="YES" 1611 ehci_load="YES" 1612 161320081009: 1614 The ABI used by the PMC toolset has changed. Please keep 1615 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1616 sync. 1617 161820081009: 1619 atapci kernel module now includes only generic PCI ATA 1620 driver. AHCI driver moved to ataahci kernel module. 1621 All vendor-specific code moved into separate kernel modules: 1622 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1623 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1624 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1625 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1626 162720080820: 1628 The TTY subsystem of the kernel has been replaced by a new 1629 implementation, which provides better scalability and an 1630 improved driver model. Most common drivers have been migrated to 1631 the new TTY subsystem, while others have not. The following 1632 drivers have not yet been ported to the new TTY layer: 1633 1634 PCI/ISA: 1635 cy, digi, rc, rp, sio 1636 1637 USB: 1638 ubser, ucycom 1639 1640 Line disciplines: 1641 ng_h4, ng_tty, ppp, sl, snp 1642 1643 Adding these drivers to your kernel configuration file shall 1644 cause compilation to fail. 1645 164620080818: 1647 ntpd has been upgraded to 4.2.4p5. 1648 164920080801: 1650 OpenSSH has been upgraded to 5.1p1. 1651 1652 For many years, FreeBSD's version of OpenSSH preferred DSA 1653 over RSA for host and user authentication keys. With this 1654 upgrade, we've switched to the vendor's default of RSA over 1655 DSA. This may cause upgraded clients to warn about unknown 1656 host keys even for previously known hosts. Users should 1657 follow the usual procedure for verifying host keys before 1658 accepting the RSA key. 1659 1660 This can be circumvented by setting the "HostKeyAlgorithms" 1661 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1662 command line. 1663 1664 Please note that the sequence of keys offered for 1665 authentication has been changed as well. You may want to 1666 specify IdentityFile in a different order to revert this 1667 behavior. 1668 166920080713: 1670 The sio(4) driver has been removed from the i386 and amd64 1671 kernel configuration files. This means uart(4) is now the 1672 default serial port driver on those platforms as well. 1673 1674 To prevent collisions with the sio(4) driver, the uart(4) driver 1675 uses different names for its device nodes. This means the 1676 onboard serial port will now most likely be called "ttyu0" 1677 instead of "ttyd0". You may need to reconfigure applications to 1678 use the new device names. 1679 1680 When using the serial port as a boot console, be sure to update 1681 /boot/device.hints and /etc/ttys before booting the new kernel. 1682 If you forget to do so, you can still manually specify the hints 1683 at the loader prompt: 1684 1685 set hint.uart.0.at="isa" 1686 set hint.uart.0.port="0x3F8" 1687 set hint.uart.0.flags="0x10" 1688 set hint.uart.0.irq="4" 1689 boot -s 1690 169120080609: 1692 The gpt(8) utility has been removed. Use gpart(8) to partition 1693 disks instead. 1694 169520080603: 1696 The version that Linuxulator emulates was changed from 2.4.2 1697 to 2.6.16. If you experience any problems with Linux binaries 1698 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1699 if it fixes the problem contact emulation mailing list. 1700 170120080525: 1702 ISDN4BSD (I4B) was removed from the src tree. You may need to 1703 update a your kernel configuration and remove relevant entries. 1704 170520080509: 1706 I have checked in code to support multiple routing tables. 1707 See the man pages setfib(1) and setfib(2). 1708 This is a hopefully backwards compatible version, 1709 but to make use of it you need to compile your kernel 1710 with options ROUTETABLES=2 (or more up to 16). 1711 171220080420: 1713 The 802.11 wireless support was redone to enable multi-bss 1714 operation on devices that are capable. The underlying device 1715 is no longer used directly but instead wlanX devices are 1716 cloned with ifconfig. This requires changes to rc.conf files. 1717 For example, change: 1718 ifconfig_ath0="WPA DHCP" 1719 to 1720 wlans_ath0=wlan0 1721 ifconfig_wlan0="WPA DHCP" 1722 see rc.conf(5) for more details. In addition, mergemaster of 1723 /etc/rc.d is highly recommended. Simultaneous update of userland 1724 and kernel wouldn't hurt either. 1725 1726 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1727 modules were merged into the base wlan module. All references 1728 to these modules (e.g. in kernel config files) must be removed. 1729 173020080408: 1731 psm(4) has gained write(2) support in native operation level. 1732 Arbitrary commands can be written to /dev/psm%d and status can 1733 be read back from it. Therefore, an application is responsible 1734 for status validation and error recovery. It is a no-op in 1735 other operation levels. 1736 173720080312: 1738 Support for KSE threading has been removed from the kernel. To 1739 run legacy applications linked against KSE libmap.conf may 1740 be used. The following libmap.conf may be used to ensure 1741 compatibility with any prior release: 1742 1743 libpthread.so.1 libthr.so.1 1744 libpthread.so.2 libthr.so.2 1745 libkse.so.3 libthr.so.3 1746 174720080301: 1748 The layout of struct vmspace has changed. This affects libkvm 1749 and any executables that link against libkvm and use the 1750 kvm_getprocs() function. In particular, but not exclusively, 1751 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1752 The effects are minimal, but it's advisable to upgrade world 1753 nonetheless. 1754 175520080229: 1756 The latest em driver no longer has support in it for the 1757 82575 adapter, this is now moved to the igb driver. The 1758 split was done to make new features that are incompatible 1759 with older hardware easier to do. 1760 176120080220: 1762 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1763 likewise the kernel option is now GEOM_LINUX_LVM. 1764 176520080211: 1766 The default NFS mount mode has changed from UDP to TCP for 1767 increased reliability. If you rely on (insecurely) NFS 1768 mounting across a firewall you may need to update your 1769 firewall rules. 1770 177120080208: 1772 Belatedly note the addition of m_collapse for compacting 1773 mbuf chains. 1774 177520080126: 1776 The fts(3) structures have been changed to use adequate 1777 integer types for their members and so to be able to cope 1778 with huge file trees. The old fts(3) ABI is preserved 1779 through symbol versioning in libc, so third-party binaries 1780 using fts(3) should still work, although they will not take 1781 advantage of the extended types. At the same time, some 1782 third-party software might fail to build after this change 1783 due to unportable assumptions made in its source code about 1784 fts(3) structure members. Such software should be fixed 1785 by its vendor or, in the worst case, in the ports tree. 1786 FreeBSD_version 800015 marks this change for the unlikely 1787 case that a portable fix is impossible. 1788 178920080123: 1790 To upgrade to -current after this date, you must be running 1791 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1792 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1793 179420071128: 1795 The ADAPTIVE_GIANT kernel option has been retired because its 1796 functionality is the default now. 1797 179820071118: 1799 The AT keyboard emulation of sunkbd(4) has been turned on 1800 by default. In order to make the special symbols of the Sun 1801 keyboards driven by sunkbd(4) work under X these now have 1802 to be configured the same way as Sun USB keyboards driven 1803 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1804 1805 Option "XkbLayout" "us" 1806 Option "XkbRules" "xorg" 1807 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1808 180920071024: 1810 It has been decided that it is desirable to provide ABI 1811 backwards compatibility to the FreeBSD 4/5/6 versions of the 1812 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1813 broken with the introduction of PCI domain support (see the 1814 20070930 entry). Unfortunately, this required the ABI of 1815 PCIOCGETCONF to be broken again in order to be able to 1816 provide backwards compatibility to the old version of that 1817 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1818 again. As for prominent ports this affects neither pciutils 1819 nor xorg-server this time, the hal port needs to be rebuilt 1820 however. 1821 182220071020: 1823 The misnamed kthread_create() and friends have been renamed 1824 to kproc_create() etc. Many of the callers already 1825 used kproc_start().. 1826 I will return kthread_create() and friends in a while 1827 with implementations that actually create threads, not procs. 1828 Renaming corresponds with version 800002. 1829 183020071010: 1831 RELENG_7 branched. 1832 1833COMMON ITEMS: 1834 1835 General Notes 1836 ------------- 1837 Avoid using make -j when upgrading. While generally safe, there are 1838 sometimes problems using -j to upgrade. If your upgrade fails with 1839 -j, please try again without -j. From time to time in the past there 1840 have been problems using -j with buildworld and/or installworld. This 1841 is especially true when upgrading between "distant" versions (eg one 1842 that cross a major release boundary or several minor releases, or when 1843 several months have passed on the -current branch). 1844 1845 Sometimes, obscure build problems are the result of environment 1846 poisoning. This can happen because the make utility reads its 1847 environment when searching for values for global variables. To run 1848 your build attempts in an "environmental clean room", prefix all make 1849 commands with 'env -i '. See the env(1) manual page for more details. 1850 1851 When upgrading from one major version to another it is generally best 1852 to upgrade to the latest code in the currently installed branch first, 1853 then do an upgrade to the new branch. This is the best-tested upgrade 1854 path, and has the highest probability of being successful. Please try 1855 this approach before reporting problems with a major version upgrade. 1856 1857 When upgrading a live system, having a root shell around before 1858 installing anything can help undo problems. Not having a root shell 1859 around can lead to problems if pam has changed too much from your 1860 starting point to allow continued authentication after the upgrade. 1861 1862 ZFS notes 1863 --------- 1864 When upgrading the boot ZFS pool to a new version, always follow 1865 these two steps: 1866 1867 1.) recompile and reinstall the ZFS boot loader and boot block 1868 (this is part of "make buildworld" and "make installworld") 1869 1870 2.) update the ZFS boot block on your boot drive 1871 1872 The following example updates the ZFS boot block on the first 1873 partition (freebsd-boot) of a GPT partitioned drive ad0: 1874 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 1875 1876 Non-boot pools do not need these updates. 1877 1878 To build a kernel 1879 ----------------- 1880 If you are updating from a prior version of FreeBSD (even one just 1881 a few days old), you should follow this procedure. It is the most 1882 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1883 1884 make kernel-toolchain 1885 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1886 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1887 1888 To test a kernel once 1889 --------------------- 1890 If you just want to boot a kernel once (because you are not sure 1891 if it works, or if you want to boot a known bad kernel to provide 1892 debugging information) run 1893 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1894 nextboot -k testkernel 1895 1896 To just build a kernel when you know that it won't mess you up 1897 -------------------------------------------------------------- 1898 This assumes you are already running a CURRENT system. Replace 1899 ${arch} with the architecture of your machine (e.g. "i386", 1900 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1901 1902 cd src/sys/${arch}/conf 1903 config KERNEL_NAME_HERE 1904 cd ../compile/KERNEL_NAME_HERE 1905 make depend 1906 make 1907 make install 1908 1909 If this fails, go to the "To build a kernel" section. 1910 1911 To rebuild everything and install it on the current system. 1912 ----------------------------------------------------------- 1913 # Note: sometimes if you are running current you gotta do more than 1914 # is listed here if you are upgrading from a really old current. 1915 1916 <make sure you have good level 0 dumps> 1917 make buildworld 1918 make kernel KERNCONF=YOUR_KERNEL_HERE 1919 [1] 1920 <reboot in single user> [3] 1921 mergemaster -p [5] 1922 make installworld 1923 mergemaster -i [4] 1924 make delete-old [6] 1925 <reboot> 1926 1927 To cross-install current onto a separate partition 1928 -------------------------------------------------- 1929 # In this approach we use a separate partition to hold 1930 # current's root, 'usr', and 'var' directories. A partition 1931 # holding "/", "/usr" and "/var" should be about 2GB in 1932 # size. 1933 1934 <make sure you have good level 0 dumps> 1935 <boot into -stable> 1936 make buildworld 1937 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1938 <maybe newfs current's root partition> 1939 <mount current's root partition on directory ${CURRENT_ROOT}> 1940 make installworld DESTDIR=${CURRENT_ROOT} 1941 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1942 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1943 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1944 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1945 <reboot into current> 1946 <do a "native" rebuild/install as described in the previous section> 1947 <maybe install compatibility libraries from ports/misc/compat*> 1948 <reboot> 1949 1950 1951 To upgrade in-place from stable to current 1952 ---------------------------------------------- 1953 <make sure you have good level 0 dumps> 1954 make buildworld [9] 1955 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1956 [1] 1957 <reboot in single user> [3] 1958 mergemaster -p [5] 1959 make installworld 1960 mergemaster -i [4] 1961 make delete-old [6] 1962 <reboot> 1963 1964 Make sure that you've read the UPDATING file to understand the 1965 tweaks to various things you need. At this point in the life 1966 cycle of current, things change often and you are on your own 1967 to cope. The defaults can also change, so please read ALL of 1968 the UPDATING entries. 1969 1970 Also, if you are tracking -current, you must be subscribed to 1971 freebsd-current@freebsd.org. Make sure that before you update 1972 your sources that you have read and understood all the recent 1973 messages there. If in doubt, please track -stable which has 1974 much fewer pitfalls. 1975 1976 [1] If you have third party modules, such as vmware, you 1977 should disable them at this point so they don't crash your 1978 system on reboot. 1979 1980 [3] From the bootblocks, boot -s, and then do 1981 fsck -p 1982 mount -u / 1983 mount -a 1984 cd src 1985 adjkerntz -i # if CMOS is wall time 1986 Also, when doing a major release upgrade, it is required that 1987 you boot into single user mode to do the installworld. 1988 1989 [4] Note: This step is non-optional. Failure to do this step 1990 can result in a significant reduction in the functionality of the 1991 system. Attempting to do it by hand is not recommended and those 1992 that pursue this avenue should read this file carefully, as well 1993 as the archives of freebsd-current and freebsd-hackers mailing lists 1994 for potential gotchas. The -U option is also useful to consider. 1995 See mergemaster(8) for more information. 1996 1997 [5] Usually this step is a noop. However, from time to time 1998 you may need to do this if you get unknown user in the following 1999 step. It never hurts to do it all the time. You may need to 2000 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2001 install) after the buildworld before this step if you last updated 2002 from current before 20130425 or from -stable before 20130430. 2003 2004 [6] This only deletes old files and directories. Old libraries 2005 can be deleted by "make delete-old-libs", but you have to make 2006 sure that no program is using those libraries anymore. 2007 2008 [8] In order to have a kernel that can run the 4.x binaries needed to 2009 do an installworld, you must include the COMPAT_FREEBSD4 option in 2010 your kernel. Failure to do so may leave you with a system that is 2011 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2012 required to run the 5.x binaries on more recent kernels. And so on 2013 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2014 2015 Make sure that you merge any new devices from GENERIC since the 2016 last time you updated your kernel config file. 2017 2018 [9] When checking out sources, you must include the -P flag to have 2019 cvs prune empty directories. 2020 2021 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2022 "?=" instead of the "=" assignment operator, so that buildworld can 2023 override the CPUTYPE if it needs to. 2024 2025 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2026 not on the command line, or in /etc/make.conf. buildworld will 2027 warn if it is improperly defined. 2028FORMAT: 2029 2030This file contains a list, in reverse chronological order, of major 2031breakages in tracking -current. It is not guaranteed to be a complete 2032list of such breakages, and only contains entries since October 10, 2007. 2033If you need to see UPDATING entries from before that date, you will need 2034to fetch an UPDATING file from an older FreeBSD release. 2035 2036Copyright information: 2037 2038Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2039 2040Redistribution, publication, translation and use, with or without 2041modification, in full or in part, in any form or format of this 2042document are permitted without further permission from the author. 2043 2044THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2045IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2046WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2047DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2048INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2049(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2050SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2051HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2052STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2053IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2054POSSIBILITY OF SUCH DAMAGE. 2055 2056Contact Warner Losh if you have any questions about your use of 2057this document. 2058 2059$FreeBSD: releng/10.0/UPDATING 265124 2014-04-30 04:04:42Z delphij $ 2060