UPDATING revision 275854
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 1920141217: p14 FreeBSD-SA-14:30.unbound 20 Fix unbound remote denial of service vulnerability. 21 2220141210: p13 FreeBSD-SA-14:28.file 23 Fix multiple vulnerabilities in file(1) and libmagic(3). 24 2520141104: p12 FreeBSD-SA-14:24.sshd 26 FreeBSD-SA-14:25.setlogin 27 FreeBSD-SA-14:26.ftp 28 FreeBSD-EN-14:12.zfs 29 30 Fix denial of service attack against sshd(8). [SA-14:24] 31 32 Fix kernel stack disclosure in setlogin(2) / getlogin(2). 33 [SA-14:25] 34 35 Fix remote command execution in ftp(1). [SA-14:26] 36 37 Fix NFSv4 and ZFS cache consistency issue. [EN-14:12] 38 3920141022: p11 FreeBSD-EN-14:10.tzdata 40 41 Time zone data file update. [EN-14:10] 42 4320141021: p10 FreeBSD-SA-14:20.rtsold 44 FreeBSD-SA-14:21.routed 45 FreeBSD-SA-14:22.namei 46 FreeBSD-SA-14:23.openssl 47 48 Fix rtsold(8) remote buffer overflow vulnerability. [SA-14:20] 49 50 Fix routed(8) remote denial of service vulnerability. [SA-14:21] 51 52 Fix memory leak in sandboxed namei lookup. [SA-14:22] 53 54 Fix OpenSSL multiple vulnerabilities. [SA-14:23] 55 5620140916: p9 FreeBSD-SA-14:19.tcp 57 Fix Denial of Service in TCP packet processing. [SA-14:19] 58 5920140909: p8 FreeBSD-SA-14:18.openssl 60 Fix OpenSSL multiple vulnerabilities. [SA-14:18] 61 6220140708: p7 FreeBSD-SA-14:17.kmem 63 Fix kernel memory disclosure in control messages and SCTP 64 notifications. [SA-14:17] 65 6620140624: p6 FreeBSD-SA-14:15.iconv 67 FreeBSD-SA-14:16.file 68 FreeBSD-EN-14:07.pmap 69 70 Fix iconv(3) NULL pointer dereference and out-of-bounds array 71 access. [SA-14:15] 72 73 Fix multiple vulnerabilities in file(1) and libmagic(3). 74 [SA-14:16] 75 76 Worked around bug with PCID implementation. [EN-14:07] 77 7820140605: p5 FreeBSD-SA-14:14.openssl 79 Fix OpenSSL multiple vulnerabilities. [SA-14:14] 80 8120140603: p4 FreeBSD-SA-14:11.sendmail 82 FreeBSD-SA-14:13.pam 83 FreeBSD-EN-14:06.exec 84 85 Fix sendmail improper close-on-exec flag handling. [SA-14:11] 86 87 Fix incorrect error handling in PAM policy parser. [SA-14:13] 88 89 Fix triple-fault when executing from a threaded process. 90 [EN-14:06] 91 9220140513: p3 FreeBSD-SA-14:10.openssl 93 FreeBSD-EN-14:05.ciss 94 95 Fix OpenSSL NULL pointer deference vulnerability. [SA-14:10] 96 97 Fix data corruption with ciss(4). [EN-14:05] 98 9920140430: p2 FreeBSD-SA-14:07.devfs 100 FreeBSD-SA-14:08.tcp 101 FreeBSD-SA-14:09.openssl 102 103 Fix devfs rules not applied by default for jails. [SA-14:07] 104 105 Fix TCP reassembly vulnerability. [SA-14:08] 106 107 Fix OpenSSL use-after-free vulnerability. [SA-14:09] 108 10920140408: p1 FreeBSD-SA-14:05.nfsserver 110 FreeBSD-SA-14:06.openssl 111 Fix deadlock in the NFS server. [SA-14:05] 112 113 Fix multiple vulnerabilities in OpenSSL. [SA-14:06] 114 11520131223: 116 The behavior of gss_pseudo_random() for the krb5 mechanism 117 has changed, for applications requesting a longer random string 118 than produced by the underlying enctype's pseudo-random() function. 119 In particular, the random string produced from a session key of 120 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 121 be different at the 17th octet and later, after this change. 122 The counter used in the PRF+ construction is now encoded as a 123 big-endian integer in accordance with RFC 4402. 124 12520131031: 126 The default version of mtree is nmtree which is obtained from 127 NetBSD. The output is generally the same, but may vary 128 slightly. If you found you need identical output adding 129 "-F freebsd9" to the command line should do the trick. For the 130 time being, the old mtree is available as fmtree. 131 13220131014: 133 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 134 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 135 1.1.4_8 and verify bsdyml not linked in, before running "make 136 delete-old-libs": 137 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 138 or 139 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 140 14120131010: 142 The rc.d/jail script has been updated to support jail(8) 143 configuration file. The "jail_<jname>_*" rc.conf(5) variables 144 for per-jail configuration are automatically converted to 145 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 146 This is transparently backward compatible. See below about some 147 incompatibilities and rc.conf(5) manual page for more details. 148 149 These variables are now deprecated in favor of jail(8) configuration 150 file. One can use "rc.d/jail config <jname>" command to generate 151 a jail(8) configuration file in /var/run/jail.<jname>.conf without 152 running the jail(8) utility. The default pathname of the 153 configuration file is /etc/jail.conf and can be specified by 154 using $jail_conf or $jail_<jname>_conf variables. 155 156 Please note that jail_devfs_ruleset accepts an integer at 157 this moment. Please consider to rewrite the ruleset name 158 with an integer. 159 16020130930: 161 BIND has been removed from the base system. If all you need 162 is a local resolver, simply enable and start the local_unbound 163 service instead. Otherwise, several versions of BIND are 164 available in the ports tree. The dns/bind99 port is one example. 165 166 With this change, nslookup(1) and dig(1) are no longer in the base 167 system. Users should instead use host(1) and drill(1) which are 168 in the base system. Alternatively, nslookup and dig can 169 be obtained by installing the dns/bind-tools port. 170 17120130916: 172 With the addition of unbound(8), a new unbound user is now 173 required during installworld. "mergemaster -p" can be used to 174 add the user prior to installworld, as documented in the handbook. 175 17620130911: 177 OpenSSH is now built with DNSSEC support, and will by default 178 silently trust signed SSHFP records. This can be controlled with 179 the VerifyHostKeyDNS client configuration setting. DNSSEC support 180 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 181 18220130906: 183 The GNU Compiler Collection and C++ standard library (libstdc++) 184 are no longer built by default on platforms where clang is the system 185 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 186 options in src.conf. 187 18820130905: 189 The PROCDESC kernel option is now part of the GENERIC kernel 190 configuration and is required for the rwhod(8) to work. 191 If you are using custom kernel configuration, you should include 192 'options PROCDESC'. 193 19420130905: 195 The API and ABI related to the Capsicum framework was modified 196 in backward incompatible way. The userland libraries and programs 197 have to be recompiled to work with the new kernel. This includes the 198 following libraries and programs, but the whole buildworld is 199 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 200 kdump, procstat, rwho, rwhod, uniq. 201 20220130903: 203 AES-NI intrinsic support has been added to gcc. The AES-NI module 204 has been updated to use this support. A new gcc is required to build 205 the aesni module on both i386 and amd64. 206 20720130821: 208 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 209 Thus "device padlock_rng" and "device rdrand_rng" should be 210 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 211 21220130813: 213 WITH_ICONV has been split into two feature sets. WITH_ICONV now 214 enables just the iconv* functionality and is now on by default. 215 WITH_LIBICONV_COMPAT enables the libiconv api and link time 216 compatability. Set WITHOUT_ICONV to build the old way. 217 If you have been using WITH_ICONV before, you will very likely 218 need to turn on WITH_LIBICONV_COMPAT. 219 22020130806: 221 INVARIANTS option now enables DEBUG for code with OpenSolaris and 222 Illumos origin, including ZFS. If you have INVARIANTS in your 223 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 224 explicitly. 225 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 226 locks if WITNESS option was set. Because that generated a lot of 227 witness(9) reports and all of them were believed to be false 228 positives, this is no longer done. New option OPENSOLARIS_WITNESS 229 can be used to achieve the previous behavior. 230 23120130806: 232 Timer values in IPv6 data structures now use time_uptime instead 233 of time_second. Although this is not a user-visible functional 234 change, userland utilities which directly use them---ndp(8), 235 rtadvd(8), and rtsold(8) in the base system---need to be updated 236 to r253970 or later. 237 23820130802: 239 find -delete can now delete the pathnames given as arguments, 240 instead of only files found below them or if the pathname did 241 not contain any slashes. Formerly, the following error message 242 would result: 243 244 find: -delete: <path>: relative path potentially not safe 245 246 Deleting the pathnames given as arguments can be prevented 247 without error messages using -mindepth 1 or by changing 248 directory and passing "." as argument to find. This works in the 249 old as well as the new version of find. 250 25120130726: 252 Behavior of devfs rules path matching has been changed. 253 Pattern is now always matched against fully qualified devfs 254 path and slash characters must be explicitly matched by 255 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 256 subdirectories must be reviewed. 257 25820130716: 259 The default ARM ABI has changed to the ARM EABI. The old ABI is 260 incompatible with the ARM EABI and all programs and modules will 261 need to be rebuilt to work with a new kernel. 262 263 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 264 265 NOTE: Support for the old ABI will be removed in the future and 266 users are advised to upgrade. 267 26820130709: 269 pkg_install has been disconnected from the build if you really need it 270 you should add WITH_PKGTOOLS in your src.conf(5). 271 27220130709: 273 Most of network statistics structures were changed to be able 274 keep 64-bits counters. Thus all tools, that work with networking 275 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 276 27720130629: 278 Fix targets that run multiple make's to use && rather than ; 279 so that subsequent steps depend on success of previous. 280 281 NOTE: if building 'universe' with -j* on stable/8 or stable/9 282 it would be better to start the build using bmake, to avoid 283 overloading the machine. 284 28520130618: 286 Fix a bug that allowed a tracing process (e.g. gdb) to write 287 to a memory-mapped file in the traced process's address space 288 even if neither the traced process nor the tracing process had 289 write access to that file. 290 29120130615: 292 CVS has been removed from the base system. An exact copy 293 of the code is available from the devel/cvs port. 294 29520130613: 296 Some people report the following error after the switch to bmake: 297 298 make: illegal option -- J 299 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 300 ... 301 *** [buildworld] Error code 2 302 303 this likely due to an old instance of make in 304 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 305 which src/Makefile will use that blindly, if it exists, so if 306 you see the above error: 307 308 rm -rf `make -V MAKEPATH` 309 310 should resolve it. 311 31220130516: 313 Use bmake by default. 314 Whereas before one could choose to build with bmake via 315 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 316 make. The goal is to remove these knobs for 10-RELEASE. 317 318 It is worth noting that bmake (like gmake) treats the command 319 line as the unit of failure, rather than statements within the 320 command line. Thus '(cd some/where && dosomething)' is safer 321 than 'cd some/where; dosomething'. The '()' allows consistent 322 behavior in parallel build. 323 32420130429: 325 Fix a bug that allows NFS clients to issue READDIR on files. 326 32720130426: 328 The WITHOUT_IDEA option has been removed because 329 the IDEA patent expired. 330 33120130426: 332 The sysctl which controls TRIM support under ZFS has been renamed 333 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 334 enabled by default. 335 33620130425: 337 The mergemaster command now uses the default MAKEOBJDIRPREFIX 338 rather than creating it's own in the temporary directory in 339 order allow access to bootstrapped versions of tools such as 340 install and mtree. When upgrading from version of FreeBSD where 341 the install command does not support -l, you will need to 342 install a new mergemaster command if mergemaster -p is required. 343 This can be accomplished with the command (cd src/usr.sbin/mergemaster 344 && make install). 345 34620130404: 347 Legacy ATA stack, disabled and replaced by new CAM-based one since 348 FreeBSD 9.0, completely removed from the sources. Kernel modules 349 atadisk and atapi*, user-level tools atacontrol and burncd are 350 removed. Kernel option `options ATA_CAM` is now permanently enabled 351 and removed. 352 35320130319: 354 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 355 and socketpair(2). Software, in particular Kerberos, may 356 automatically detect and use these during building. The resulting 357 binaries will not work on older kernels. 358 35920130308: 360 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 361 information, see the respective 20130304 entry). 362 36320130304: 364 Recent commits to callout(9) changed the size of struct callout, 365 so the KBI is probably heavily disturbed. Also, some functions 366 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 367 by macros. Every kernel module using it won't load, so rebuild 368 is requested. 369 370 The ctl device has been re-enabled in GENERIC for i386 and amd64, 371 but does not initialize by default (because of the new CTL_DISABLE 372 option) to save memory. To re-enable it, remove the CTL_DISABLE 373 option from the kernel config file or set kern.cam.ctl.disable=0 374 in /boot/loader.conf. 375 37620130301: 377 The ctl device has been disabled in GENERIC for i386 and amd64. 378 This was done due to the extra memory being allocated at system 379 initialisation time by the ctl driver which was only used if 380 a CAM target device was created. This makes a FreeBSD system 381 unusable on 128MB or less of RAM. 382 38320130208: 384 A new compression method (lz4) has been merged to -HEAD. Please 385 refer to zpool-features(7) for more information. 386 387 Please refer to the "ZFS notes" section of this file for information 388 on upgrading boot ZFS pools. 389 39020130129: 391 A BSD-licensed patch(1) variant has been added and is installed 392 as bsdpatch, being the GNU version the default patch. 393 To inverse the logic and use the BSD-licensed one as default, 394 while having the GNU version installed as gnupatch, rebuild 395 and install world with the WITH_BSD_PATCH knob set. 396 39720130121: 398 Due to the use of the new -l option to install(1) during build 399 and install, you must take care not to directly set the INSTALL 400 make variable in your /etc/make.conf, /etc/src.conf, or on the 401 command line. If you wish to use the -C flag for all installs 402 you may be able to add INSTALL+=-C to /etc/make.conf or 403 /etc/src.conf. 404 40520130118: 406 The install(1) option -M has changed meaning and now takes an 407 argument that is a file or path to append logs to. In the 408 unlikely event that -M was the last option on the command line 409 and the command line contained at least two files and a target 410 directory the first file will have logs appended to it. The -M 411 option served little practical purpose in the last decade so its 412 use is expected to be extremely rare. 413 41420121223: 415 After switching to Clang as the default compiler some users of ZFS 416 on i386 systems started to experience stack overflow kernel panics. 417 Please consider using 'options KSTACK_PAGES=4' in such configurations. 418 41920121222: 420 GEOM_LABEL now mangles label names read from file system metadata. 421 Mangling affect labels containing spaces, non-printable characters, 422 '%' or '"'. Device names in /etc/fstab and other places may need to 423 be updated. 424 42520121217: 426 By default, only the 10 most recent kernel dumps will be saved. To 427 restore the previous behaviour (no limit on the number of kernel dumps 428 stored in the dump directory) add the following line to /etc/rc.conf: 429 430 savecore_flags="" 431 43220121201: 433 With the addition of auditdistd(8), a new auditdistd user is now 434 required during installworld. "mergemaster -p" can be used to 435 add the user prior to installworld, as documented in the handbook. 436 43720121117: 438 The sin6_scope_id member variable in struct sockaddr_in6 is now 439 filled by the kernel before passing the structure to the userland via 440 sysctl or routing socket. This means the KAME-specific embedded scope 441 id in sin6_addr.s6_addr[2] is always cleared in userland application. 442 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 443 __FreeBSD_version is bumped to 1000025. 444 44520121105: 446 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 447 This means that the world and kernel will be compiled with clang 448 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 449 and /usr/bin/cpp. To disable this behavior and revert to building 450 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 451 of current may need to bootstrap WITHOUT_CLANG first if the clang 452 build fails (its compatibility window doesn't extend to the 9 stable 453 branch point). 454 45520121102: 456 The IPFIREWALL_FORWARD kernel option has been removed. Its 457 functionality now turned on by default. 458 45920121023: 460 The ZERO_COPY_SOCKET kernel option has been removed and 461 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 462 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 463 mechanism which is not safe and may result in kernel crashes. 464 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 465 driver supports disposeable external page sized mbuf storage. 466 Proper replacements for both zero-copy mechanisms are under 467 consideration and will eventually lead to complete removal 468 of the two kernel options. 469 47020121023: 471 The IPv4 network stack has been converted to network byte 472 order. The following modules need to be recompiled together 473 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 474 pf(4), ipfw(4), ng_ipfw(4), stf(4). 475 47620121022: 477 Support for non-MPSAFE filesystems was removed from VFS. The 478 VFS_VERSION was bumped, all filesystem modules shall be 479 recompiled. 480 48120121018: 482 All the non-MPSAFE filesystems have been disconnected from 483 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 484 portalfs, smbfs, xfs. 485 48620121016: 487 The interface cloning API and ABI has changed. The following 488 modules need to be recompiled together with kernel: 489 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 490 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 491 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 492 49320121015: 494 The sdhci driver was split in two parts: sdhci (generic SD Host 495 Controller logic) and sdhci_pci (actual hardware driver). 496 No kernel config modifications are required, but if you 497 load sdhc as a module you must switch to sdhci_pci instead. 498 49920121014: 500 Import the FUSE kernel and userland support into base system. 501 50220121013: 503 The GNU sort(1) program has been removed since the BSD-licensed 504 sort(1) has been the default for quite some time and no serious 505 problems have been reported. The corresponding WITH_GNU_SORT 506 knob has also gone. 507 50820121006: 509 The pfil(9) API/ABI for AF_INET family has been changed. Packet 510 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 511 with new kernel. 512 51320121001: 514 The net80211(4) ABI has been changed to allow for improved driver 515 PS-POLL and power-save support. All wireless drivers need to be 516 recompiled to work with the new kernel. 517 51820120913: 519 The random(4) support for the VIA hardware random number 520 generator (`PADLOCK') is no longer enabled unconditionally. 521 Add the padlock_rng device in the custom kernel config if 522 needed. The GENERIC kernels on i386 and amd64 do include the 523 device, so the change only affects the custom kernel 524 configurations. 525 52620120908: 527 The pf(4) packet filter ABI has been changed. pfctl(8) and 528 snmp_pf module need to be recompiled to work with new kernel. 529 53020120828: 531 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 532 to -HEAD. Pools that have empty_bpobj in active state can not be 533 imported read-write with ZFS implementations that do not support 534 this feature. For more information read the zpool-features(5) 535 manual page. 536 53720120727: 538 The sparc64 ZFS loader has been changed to no longer try to auto- 539 detect ZFS providers based on diskN aliases but now requires these 540 to be explicitly listed in the OFW boot-device environment variable. 541 54220120712: 543 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 544 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 545 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 546 54720120712: 548 The following sysctls and tunables have been renamed for consistency 549 with other variables: 550 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 551 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 552 55320120628: 554 The sort utility has been replaced with BSD sort. For now, GNU sort 555 is also available as "gnusort" or the default can be set back to 556 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 557 installed as "bsdsort". 558 55920120611: 560 A new version of ZFS (pool version 5000) has been merged to -HEAD. 561 Starting with this version the old system of ZFS pool versioning 562 is superseded by "feature flags". This concept enables forward 563 compatibility against certain future changes in functionality of ZFS 564 pools. The first read-only compatible "feature flag" for ZFS pools 565 is named "com.delphix:async_destroy". For more information 566 read the new zpool-features(5) manual page. 567 Please refer to the "ZFS notes" section of this file for information 568 on upgrading boot ZFS pools. 569 57020120417: 571 The malloc(3) implementation embedded in libc now uses sources imported 572 as contrib/jemalloc. The most disruptive API change is to 573 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 574 delete it prior to installworld, and optionally re-create it using the 575 new format after rebooting. See malloc.conf(5) for details 576 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 577 NAMESPACE section). 578 57920120328: 580 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 581 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 582 now spelled mips. This is to aid compatibility with third-party 583 software that expects this naming scheme in uname(3). Little-endian 584 settings are unchanged. If you are updating a big-endian mips64 machine 585 from before this change, you may need to set MACHINE_ARCH=mips64 in 586 your environment before the new build system will recognize your machine. 587 58820120306: 589 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 590 platforms. 591 59220120229: 593 Now unix domain sockets behave "as expected" on nullfs(5). Previously 594 nullfs(5) did not pass through all behaviours to the underlying layer, 595 as a result if we bound to a socket on the lower layer we could connect 596 only to the lower path; if we bound to the upper layer we could connect 597 only to the upper path. The new behavior is one can connect to both the 598 lower and the upper paths regardless what layer path one binds to. 599 60020120211: 601 The getifaddrs upgrade path broken with 20111215 has been restored. 602 If you have upgraded in between 20111215 and 20120209 you need to 603 recompile libc again with your kernel. You still need to recompile 604 world to be able to configure CARP but this restriction already 605 comes from 20111215. 606 60720120114: 608 The set_rcvar() function has been removed from /etc/rc.subr. All 609 base and ports rc.d scripts have been updated, so if you have a 610 port installed with a script in /usr/local/etc/rc.d you can either 611 hand-edit the rcvar= line, or reinstall the port. 612 613 An easy way to handle the mass-update of /etc/rc.d: 614 rm /etc/rc.d/* && mergemaster -i 615 61620120109: 617 panic(9) now stops other CPUs in the SMP systems, disables interrupts 618 on the current CPU and prevents other threads from running. 619 This behavior can be reverted using the kern.stop_scheduler_on_panic 620 tunable/sysctl. 621 The new behavior can be incompatible with kern.sync_on_panic. 622 62320111215: 624 The carp(4) facility has been changed significantly. Configuration 625 of the CARP protocol via ifconfig(8) has changed, as well as format 626 of CARP events submitted to devd(8) has changed. See manual pages 627 for more information. The arpbalance feature of carp(4) is currently 628 not supported anymore. 629 630 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 631 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 632 need to be recompiled. 633 63420111122: 635 The acpi_wmi(4) status device /dev/wmistat has been renamed to 636 /dev/wmistat0. 637 63820111108: 639 The option VFS_ALLOW_NONMPSAFE option has been added in order to 640 explicitely support non-MPSAFE filesystems. 641 It is on by default for all supported platform at this present 642 time. 643 64420111101: 645 The broken amd(4) driver has been replaced with esp(4) in the amd64, 646 i386 and pc98 GENERIC kernel configuration files. 647 64820110930: 649 sysinstall has been removed 650 65120110923: 652 The stable/9 branch created in subversion. This corresponds to the 653 RELENG_9 branch in CVS. 654 65520110913: 656 This commit modifies vfs_register() so that it uses a hash 657 calculation to set vfc_typenum, which is enabled by default. 658 The first time a system is booted after this change, the 659 vfc_typenum values will change for all file systems. The 660 main effect of this is a change to the NFS server file handles 661 for file systems that use vfc_typenum in their fsid, such as ZFS. 662 It will, however, prevent vfc_typenum from changing when file 663 systems are loaded in a different order for subsequent reboots. 664 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 665 until you are ready to remount all NFS clients after a reboot. 666 66720110828: 668 Bump the shared library version numbers for libraries that 669 do not use symbol versioning, have changed the ABI compared 670 to stable/8 and which shared library version was not bumped. 671 Done as part of 9.0-RELEASE cycle. 672 67320110815: 674 During the merge of Capsicum features, the fget(9) KPI was modified. 675 This may require the rebuilding of out-of-tree device drivers -- 676 issues have been reported specifically with the nVidia device driver. 677 __FreeBSD_version is bumped to 900041. 678 679 Also, there is a period between 20110811 and 20110814 where the 680 special devices /dev/{stdin,stdout,stderr} did not work correctly. 681 Building world from a kernel during that window may not work. 682 68320110628: 684 The packet filter (pf) code has been updated to OpenBSD 4.5. 685 You need to update userland tools to be in sync with kernel. 686 This update breaks backward compatibility with earlier pfsync(4) 687 versions. Care must be taken when updating redundant firewall setups. 688 68920110608: 690 The following sysctls and tunables are retired on x86 platforms: 691 machdep.hlt_cpus 692 machdep.hlt_logical_cpus 693 The following sysctl is retired: 694 machdep.hyperthreading_allowed 695 The sysctls were supposed to provide a way to dynamically offline and 696 online selected CPUs on x86 platforms, but the implementation has not 697 been reliable especially with SCHED_ULE scheduler. 698 machdep.hyperthreading_allowed tunable is still available to ignore 699 hyperthreading CPUs at OS level. 700 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 701 where X is an APIC ID of a CPU. Be advised, though, that disabling 702 CPUs in non-uniform fashion will result in non-uniform topology and 703 may lead to sub-optimal system performance with SCHED_ULE, which is 704 a default scheduler. 705 70620110607: 707 cpumask_t type is retired and cpuset_t is used in order to describe 708 a mask of CPUs. 709 71020110531: 711 Changes to ifconfig(8) for dynamic address family detection mandate 712 that you are running a kernel of 20110525 or later. Make sure to 713 follow the update procedure to boot a new kernel before installing 714 world. 715 71620110513: 717 Support for sun4v architecture is officially dropped 718 71920110503: 720 Several KPI breaking changes have been committed to the mii(4) layer, 721 the PHY drivers and consequently some Ethernet drivers using mii(4). 722 This means that miibus.ko and the modules of the affected Ethernet 723 drivers need to be recompiled. 724 725 Note to kernel developers: Given that the OUI bit reversion problem 726 was fixed as part of these changes all mii(4) commits related to OUIs, 727 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 728 handling, no longer can be merged verbatim to stable/8 and previous 729 branches. 730 73120110430: 732 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 733 into their kernel configurations along with 'device pci'. 734 73520110427: 736 The default NFS client is now the new NFS client, so fstype "newnfs" 737 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 738 Although mounts via fstype "nfs" will usually work without userland 739 changes, it is recommended that the mount(8) and mount_nfs(8) 740 commands be rebuilt from sources and that a link to mount_nfs called 741 mount_oldnfs be created. The new client is compiled into the 742 kernel with "options NFSCL" and this is needed for diskless root 743 file systems. The GENERIC kernel configs have been changed to use 744 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 745 To use the regular/old client, you can "mount -t oldnfs ...". For 746 a diskless root file system, you must also include a line like: 747 748 vfs.root.mountfrom="oldnfs:" 749 750 in the boot/loader.conf on the root fs on the NFS server to make 751 a diskless root fs use the old client. 752 75320110424: 754 The GENERIC kernels for all architectures now default to the new 755 CAM-based ATA stack. It means that all legacy ATA drivers were 756 removed and replaced by respective CAM drivers. If you are using 757 ATA device names in /etc/fstab or other places, make sure to update 758 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 759 where 'Y's are the sequential numbers starting from zero for each type 760 in order of detection, unless configured otherwise with tunables, 761 see cam(4)). There will be symbolic links created in /dev/ to map 762 old adX devices to the respective adaY. They should provide basic 763 compatibility for file systems mounting in most cases, but they do 764 not support old user-level APIs and do not have respective providers 765 in GEOM. Consider using updated management tools with new device names. 766 767 It is possible to load devices ahci, ata, siis and mvs as modules, 768 but option ATA_CAM should remain in kernel configuration to make ata 769 module work as CAM driver supporting legacy ATA controllers. Device ata 770 still can be used in modular fashion (atacore + ...). Modules atadisk 771 and atapi* are not used and won't affect operation in ATA_CAM mode. 772 Note that to use CAM-based ATA kernel should include CAM devices 773 scbus, pass, da (or explicitly ada), cd and optionally others. All of 774 them are parts of the cam module. 775 776 ataraid(4) functionality is now supported by the RAID GEOM class. 777 To use it you can load geom_raid kernel module and use graid(8) tool 778 for management. Instead of /dev/arX device names, use /dev/raid/rX. 779 780 No kernel config options or code have been removed, so if a problem 781 arises, please report it and optionally revert to the old ATA stack. 782 In order to do it you can remove from the kernel config: 783 options ATA_CAM 784 device ahci 785 device mvs 786 device siis 787 , and instead add back: 788 device atadisk # ATA disk drives 789 device ataraid # ATA RAID drives 790 device atapicd # ATAPI CDROM drives 791 device atapifd # ATAPI floppy drives 792 device atapist # ATAPI tape drives 793 79420110423: 795 The default NFS server has been changed to the new server, which 796 was referred to as the experimental server. If you need to switch 797 back to the old NFS server, you must now put the "-o" option on 798 both the mountd and nfsd commands. This can be done using the 799 mountd_flags and nfs_server_flags rc.conf variables until an 800 update to the rc scripts is committed, which is coming soon. 801 80220110418: 803 The GNU Objective-C runtime library (libobjc), and other Objective-C 804 related components have been removed from the base system. If you 805 require an Objective-C library, please use one of the available ports. 806 80720110331: 808 ath(4) has been split into bus- and device- modules. if_ath contains 809 the HAL, the TX rate control and the network device code. if_ath_pci 810 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 811 contains the AHB glue. Users need to load both if_ath_pci and if_ath 812 in order to use ath on everything else. 813 814 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 815 need to load if_ath and if_ath_pci for ath(4) operation. 816 81720110314: 818 As part of the replacement of sysinstall, the process of building 819 release media has changed significantly. For details, please re-read 820 release(7), which has been updated to reflect the new build process. 821 82220110218: 823 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 824 is the last available version under GPLv2. It brings a number of new 825 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 826 4.1 and SSE 4.2), better support for powerpc64, a number of new 827 directives, and lots of other small improvements. See the ChangeLog 828 file in contrib/binutils for the full details. 829 83020110218: 831 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 832 compliant, and will now use half of hash for authentication. 833 This will break interoperability with all stacks (including all 834 actual FreeBSD versions) who implement 835 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 836 authentication). 837 The only workaround with such peers is to use another HMAC 838 algorithm for IPsec ("phase 2") authentication. 839 84020110207: 841 Remove the uio_yield prototype and symbol. This function has 842 been misnamed since it was introduced and should not be 843 globally exposed with this name. The equivalent functionality 844 is now available using kern_yield(curthread->td_user_pri). 845 The function remains undocumented. 846 84720110112: 848 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 849 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 850 for scalar sysctls is defined but disabled. Code that needs 851 UQUAD to pass the type checking that must compile on older 852 systems where the define is not present can check against 853 __FreeBSD_version >= 900030. 854 855 The system dialog(1) has been replaced with a new version previously 856 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 857 with the previous version, but the libdialog associated with it has 858 a largely incompatible API. As such, the original version of libdialog 859 will be kept temporarily as libodialog, until its base system consumers 860 are replaced or updated. Bump __FreeBSD_version to 900030. 861 86220110103: 863 If you are trying to run make universe on a -stable system, and you get 864 the following warning: 865 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 866 unknown. config(8) likely too old." 867 or something similar to it, then you must upgrade your -stable system 868 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 869 stable/8) or build the config from the latest stable/8 branch and 870 install it on your system. 871 872 Prior to this date, building a current universe on 8-stable system from 873 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 874 error in the first kernel build phase. A new config on those old 875 systems will fix that problem for older versions of -current. 876 87720101228: 878 The TCP stack has been modified to allow Khelp modules to interact with 879 it via helper hook points and store per-connection data in the TCP 880 control block. Bump __FreeBSD_version to 900029. User space tools that 881 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 882 be recompiled. 883 88420101114: 885 Generic IEEE 802.3 annex 31B full duplex flow control support has been 886 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 887 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 888 to take advantage of it instead of using custom implementations. This 889 means that these drivers now no longer unconditionally advertise 890 support for flow control but only do so if flow control is a selected 891 media option. This was implemented in the generic support that way in 892 order to allow flow control to be switched on and off via ifconfig(8) 893 with the PHY specific default to typically off in order to protect 894 from unwanted effects. Consequently, if you used flow control with 895 one of the above mentioned drivers you now need to explicitly enable 896 it, for example via: 897 ifconfig bge0 media auto mediaopt flowcontrol 898 899 Along with the above mentioned changes generic support for setting 900 1000baseT master mode also has been added and brgphy(4), ciphy(4), 901 e1000phy(4) as well as ip1000phy(4) have been converted to take 902 advantage of it. This means that these drivers now no longer take the 903 link0 parameter for selecting master mode but the master media option 904 has to be used instead, for example like in the following: 905 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 906 907 Selection of master mode now is also available with all other PHY 908 drivers supporting 1000baseT. 909 91020101111: 911 The TCP stack has received a significant update to add support for 912 modularised congestion control and generally improve the clarity of 913 congestion control decisions. Bump __FreeBSD_version to 900025. User 914 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 915 sockstat) need to be recompiled. 916 91720101002: 918 The man(1) utility has been replaced by a new version that no longer 919 uses /etc/manpath.config. Please consult man.conf(5) for how to 920 migrate local entries to the new format. 921 92220100928: 923 The copyright strings printed by login(1) and sshd(8) at the time of a 924 new connection have been removed to follow other operating systems and 925 upstream sshd. 926 92720100915: 928 A workaround for a fixed ld bug has been removed in kernel code, 929 so make sure that your system ld is built from sources after 930 revision 210245 from 2010-07-19 (r211583 if building head kernel 931 on stable/8, r211584 for stable/7; both from 2010-08-21). 932 A symptom of incorrect ld version is different addresses for 933 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 934 93520100913: 936 The $ipv6_prefer variable in rc.conf(5) has been split into 937 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 938 939 The $ip6addrctl_policy is a variable to choose a pre-defined 940 address selection policy set by ip6addrctl(8). A value 941 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 942 default is "AUTO". 943 944 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 945 flag (see an entry of 20090926) is set on an interface with no 946 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 947 security reason. If you want IPv6 link-local address on all 948 interfaces by default, set this to "YES". 949 950 The old ipv6_prefer="YES" is equivalent to 951 ipv6_activate_all_interfaces="YES" and 952 ip6addrctl_policy="ipv6_prefer". 953 95420100913: 955 DTrace has grown support for userland tracing. Due to this, DTrace is 956 now i386 and amd64 only. 957 dtruss(1) is now installed by default on those systems and a new 958 kernel module is needed for userland tracing: fasttrap. 959 No changes to your kernel config file are necessary to enable 960 userland tracing, but you might consider adding 'STRIP=' and 961 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 962 to have informative userland stack traces in DTrace (ustack). 963 96420100725: 965 The acpi_aiboost(4) driver has been removed in favor of the new 966 aibs(4) driver. You should update your kernel configuration file. 967 96820100722: 969 BSD grep has been imported to the base system and it is built by 970 default. It is completely BSD licensed, highly GNU-compatible, uses 971 less memory than its GNU counterpart and has a small codebase. 972 However, it is slower than its GNU counterpart, which is mostly 973 noticeable for larger searches, for smaller ones it is measurable 974 but not significant. The reason is complex, the most important factor 975 is that we lack a modern and efficient regex library and GNU 976 overcomes this by optimizing the searches internally. Future work 977 on improving the regex performance is planned, for the meantime, 978 users that need better performance, can build GNU grep instead by 979 setting the WITH_GNU_GREP knob. 980 98120100713: 982 Due to the import of powerpc64 support, all existing powerpc kernel 983 configuration files must be updated with a machine directive like this: 984 machine powerpc powerpc 985 986 In addition, an updated config(8) is required to build powerpc kernels 987 after this change. 988 98920100713: 990 A new version of ZFS (version 15) has been merged to -HEAD. 991 This version uses a python library for the following subcommands: 992 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 993 For full functionality of these commands the following port must 994 be installed: sysutils/py-zfs 995 99620100429: 997 'vm_page's are now hashed by physical address to an array of mutexes. 998 Currently this is only used to serialize access to hold_count. Over 999 time the page queue mutex will be peeled away. This changes the size 1000 of pmap on every architecture. And requires all callers of vm_page_hold 1001 and vm_page_unhold to be updated. 1002 100320100402: 1004 WITH_CTF can now be specified in src.conf (not recommended, there 1005 are some problems with static executables), make.conf (would also 1006 affect ports which do not use GNU make and do not override the 1007 compile targets) or in the kernel config (via "makeoptions 1008 WITH_CTF=yes"). 1009 When WITH_CTF was specified there before this was silently ignored, 1010 so make sure that WITH_CTF is not used in places which could lead 1011 to unwanted behavior. 1012 101320100311: 1014 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1015 to allow 32-bit compatibility on non-x86 platforms. All kernel 1016 configurations on amd64 and ia64 platforms using these options must 1017 be modified accordingly. 1018 101920100113: 1020 The utmp user accounting database has been replaced with utmpx, 1021 the user accounting interface standardized by POSIX. 1022 Unfortunately the semantics of utmp and utmpx don't match, 1023 making it practically impossible to support both interfaces. 1024 The user accounting database is used by tools like finger(1), 1025 last(1), talk(1), w(1) and ac(8). 1026 1027 All applications in the base system use utmpx. This means only 1028 local binaries (e.g. from the ports tree) may still use these 1029 utmp database files. These applications must be rebuilt to make 1030 use of utmpx. 1031 1032 After the system has been upgraded, it is safe to remove the old 1033 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1034 assuming their contents is of no importance anymore. Old wtmp 1035 databases can only be used by last(1) and ac(8) after they have 1036 been converted to the new format using wtmpcvt(1). 1037 103820100108: 1039 Introduce the kernel thread "deadlock resolver" (which can be enabled 1040 via the DEADLKRES option, see NOTES for more details) and the 1041 sleepq_type() function for sleepqueues. 1042 104320091202: 1044 The rc.firewall and rc.firewall6 were unified, and 1045 rc.firewall6 and rc.d/ip6fw were removed. 1046 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1047 variables are obsoleted. Instead, the following new rc 1048 variables are added to rc.d/ipfw: 1049 1050 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1051 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1052 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1053 1054 The meanings correspond to the relevant IPv4 variables. 1055 105620091125: 1057 8.0-RELEASE. 1058 105920091113: 1060 The default terminal emulation for syscons(4) has been changed 1061 from cons25 to xterm on all platforms except pc98. This means 1062 that the /etc/ttys file needs to be updated to ensure correct 1063 operation of applications on the console. 1064 1065 The terminal emulation style can be toggled per window by using 1066 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1067 options can be used to change the compile-time default back to 1068 cons25. 1069 1070 To prevent graphical artifacts, make sure the TERM environment 1071 variable is set to match the terminal emulation that is being 1072 performed by syscons(4). 1073 107420091109: 1075 The layout of the structure ieee80211req_scan_result has changed. 1076 Applications that require wireless scan results (e.g. ifconfig(8)) 1077 from net80211 need to be recompiled. 1078 1079 Applications such as wpa_supplicant(8) may require a full world 1080 build without using NO_CLEAN in order to get synchronized with the 1081 new structure. 1082 108320091025: 1084 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1085 There's one kernel module for each firmware. Adding "device iwnfw" 1086 to the kernel configuration file means including all three firmware 1087 images inside the kernel. If you want to include just the one for 1088 your wireless card, use the devices iwn4965fw, iwn5000fw or 1089 iwn5150fw. 1090 109120090926: 1092 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1093 into rc.d/netif. The changes are the following: 1094 1095 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1096 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1097 Note that both variables need the "inet6" keyword at the head. 1098 1099 Do not set $ipv6_network_interfaces manually if you do not 1100 understand what you are doing. It is not needed in most cases. 1101 1102 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1103 they are obsolete. 1104 1105 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1106 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1107 1108 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1109 all configured interfaces have "inet6 accept_rtadv" in the 1110 $ifconfig_IF_ipv6. These are for backward compatibility. 1111 1112 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1113 functionality of interfaces with no corresponding 1114 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1115 and the default address selection policy of ip6addrctl(8) 1116 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1117 Note that if you want to configure IPv6 functionality on the 1118 disabled interfaces after boot, first you need to clear the flag by 1119 using ifconfig(8) like: 1120 1121 ifconfig em0 inet6 -ifdisabled 1122 1123 If YES, the default address selection policy is set as 1124 IPv6-preferred. 1125 1126 The default value of $ipv6_prefer is NO. 1127 1128 4. If your system need to receive Router Advertisement messages, 1129 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1130 scripts automatically invoke rtsol(8) when the interface becomes 1131 UP. The Router Advertisement messages are used for SLAAC 1132 (State-Less Address AutoConfiguration). 1133 113420090922: 1135 802.11s D3.03 support was committed. This is incompatible with the 1136 previous code, which was based on D3.0. 1137 113820090912: 1139 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1140 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1141 control whether accepting Router Advertisement messages or not. 1142 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1143 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1144 The ifconfig(8) utility now supports these flags. 1145 114620090910: 1147 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1148 mount(8) and -a option for df(1) to see them. 1149 115020090825: 1151 The old tunable hw.bus.devctl_disable has been superseded by 1152 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1153 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1154 is 1000. 1155 115620090813: 1157 Remove the option STOP_NMI. The default action is now to use NMI only 1158 for KDB via the newly introduced function stop_cpus_hard() and 1159 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1160 116120090803: 1162 The stable/8 branch created in subversion. This corresponds to the 1163 RELENG_8 branch in CVS. 1164 116520090719: 1166 Bump the shared library version numbers for all libraries that do not 1167 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1168 __FreeBSD_version to 800105. 1169 117020090714: 1171 Due to changes in the implementation of virtual network stack support, 1172 all network-related kernel modules must be recompiled. As this change 1173 breaks the ABI, bump __FreeBSD_version to 800104. 1174 117520090713: 1176 The TOE interface to the TCP syncache has been modified to remove 1177 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1178 The cxgb driver is the only TOE consumer affected by this change, and 1179 needs to be recompiled along with the kernel. As this change breaks 1180 the ABI, bump __FreeBSD_version to 800103. 1181 118220090712: 1183 Padding has been added to struct tcpcb, sackhint and tcpstat in 1184 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1185 maintaining the ABI. However, this change breaks the ABI, so bump 1186 __FreeBSD_version to 800102. User space tools that rely on the size of 1187 any of these structs (e.g. sockstat) need to be recompiled. 1188 118920090630: 1190 The NFS_LEGACYRPC option has been removed along with the old kernel 1191 RPC implementation that this option selected. Kernel configurations 1192 may need to be adjusted. 1193 119420090629: 1195 The network interface device nodes at /dev/net/<interface> have been 1196 removed. All ioctl operations can be performed the normal way using 1197 routing sockets. The kqueue functionality can generally be replaced 1198 with routing sockets. 1199 120020090628: 1201 The documentation from the FreeBSD Documentation Project (Handbook, 1202 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1203 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1204 120520090624: 1206 The ABI of various structures related to the SYSV IPC API have been 1207 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1208 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1209 800100. 1210 121120090622: 1212 Layout of struct vnet has changed as routing related variables were 1213 moved to their own Vimage module. Modules need to be recompiled. Bump 1214 __FreeBSD_version to 800099. 1215 121620090619: 1217 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1218 respectively. As long as no more than 16 groups per process are used, 1219 no changes should be visible. When more than 16 groups are used, old 1220 binaries may fail if they call getgroups() or getgrouplist() with 1221 statically sized storage. Recompiling will work around this, but 1222 applications should be modified to use dynamically allocated storage 1223 for group arrays as POSIX.1-2008 does not cap an implementation's 1224 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1225 1226 NFS and portalfs mounts may also be affected as the list of groups is 1227 truncated to 16. Users of NFS who use more than 16 groups, should 1228 take care that negative group permissions are not used on the exported 1229 file systems as they will not be reliable unless a GSSAPI based 1230 authentication method is used. 1231 123220090616: 1233 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1234 option compiles in the support for adaptive spinning for lockmgrs 1235 which want to enable it. The lockinit() function now accepts the flag 1236 LK_ADAPTIVE in order to make the lock object subject to adaptive 1237 spinning when both held in write and read mode. 1238 123920090613: 1240 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1241 changed. User applications that use this ioctl need to be rebuilt. 1242 124320090611: 1244 The layout of struct thread has changed. Kernel and modules need to 1245 be rebuilt. 1246 124720090608: 1248 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1249 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1250 125120090602: 1252 window(1) has been removed from the base system. It can now be 1253 installed from ports. The port is called misc/window. 1254 125520090601: 1256 The way we are storing and accessing `routing table' entries has 1257 changed. Programs reading the FIB, like netstat, need to be 1258 re-compiled. 1259 126020090601: 1261 A new netisr implementation has been added for FreeBSD 8. Network 1262 file system modules, such as igmp, ipdivert, and others, should be 1263 rebuilt. 1264 Bump __FreeBSD_version to 800096. 1265 126620090530: 1267 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1268 more valid. 1269 127020090530: 1271 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1272 Bump __FreeBSD_version to 800094. 1273 127420090529: 1275 Add mnt_xflag field to 'struct mount'. File system modules need to be 1276 rebuilt. 1277 Bump __FreeBSD_version to 800093. 1278 127920090528: 1280 The compiling option ADAPTIVE_SX has been retired while it has been 1281 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1282 The KPI for sx_init_flags() changes as accepting flags: 1283 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1284 been introduced in order to handle the reversed logic. 1285 Bump __FreeBSD_version to 800092. 1286 128720090527: 1288 Add support for hierarchical jails. Remove global securelevel. 1289 Bump __FreeBSD_version to 800091. 1290 129120090523: 1292 The layout of struct vnet_net has changed, therefore modules 1293 need to be rebuilt. 1294 Bump __FreeBSD_version to 800090. 1295 129620090523: 1297 The newly imported zic(8) produces a new format in the output. Please 1298 run tzsetup(8) to install the newly created data to /etc/localtime. 1299 130020090520: 1301 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1302 hw.usb.* and is now consistent again with previous releases. 1303 130420090520: 1305 802.11 monitor mode support was revised and driver api's were changed. 1306 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1307 of DLT_IEEE802_11. No user-visible data structures were changed but 1308 applications that use DLT_IEEE802_11 may require changes. 1309 Bump __FreeBSD_version to 800088. 1310 131120090430: 1312 The layout of the following structs has changed: sysctl_oid, 1313 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1314 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1315 panics may be experienced. World rebuild is required for 1316 correctly checking networking state from userland. 1317 Bump __FreeBSD_version to 800085. 1318 131920090429: 1320 MLDv2 and Source-Specific Multicast (SSM) have been merged 1321 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1322 The implementation of SSM within FreeBSD's IPv6 stack closely 1323 follows the IPv4 implementation. 1324 1325 For kernel developers: 1326 1327 * The most important changes are that the ip6_output() and 1328 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1329 and this lock has been downgraded to a non-recursive mutex. 1330 1331 * As with the changes to the IPv4 stack to support SSM, filtering 1332 of inbound multicast traffic must now be performed by transport 1333 protocols within the IPv6 stack. This does not apply to TCP and 1334 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1335 1336 * The KPIs used by IPv6 multicast are similar to those used by 1337 the IPv4 stack, with the following differences: 1338 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1339 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1340 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1341 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1342 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1343 for MLDv1 have an additional 'timer' argument which is used to 1344 jitter the initial membership report for the solicited-node 1345 multicast membership on-link. 1346 * This is not strictly needed for MLDv2, which already jitters 1347 its report transmissions. However, the 'timer' argument is 1348 preserved in case MLDv1 is active on the interface. 1349 1350 * The KAME linked-list based IPv6 membership implementation has 1351 been refactored to use a vector similar to that used by the IPv4 1352 stack. 1353 Code which maintains a list of its own multicast memberships 1354 internally, e.g. carp, has been updated to reflect the new 1355 semantics. 1356 1357 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1358 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1359 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1360 implementation constraint which needs to be addressed in HEAD. 1361 1362 For application developers: 1363 1364 * The changes are broadly similar to those made for the IPv4 1365 stack. 1366 1367 * The use of IPv4 and IPv6 multicast socket options on the same 1368 socket, using mapped addresses, HAS NOT been tested or supported. 1369 1370 * There are a number of issues with the implementation of various 1371 IPv6 multicast APIs which need to be resolved in the API surface 1372 before the implementation is fully compatible with KAME userland 1373 use, and these are mostly to do with interface index treatment. 1374 1375 * The literature available discusses the use of either the delta / ASM 1376 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1377 using setsourcefilter(3)/getsourcefilter(3). For more information 1378 please refer to RFC 3768, 'Socket Interface Extensions for 1379 Multicast Source Filters'. 1380 1381 * Applications which use the published RFC 3678 APIs should be fine. 1382 1383 For systems administrators: 1384 1385 * The mtest(8) utility has been refactored to support IPv6, in 1386 addition to IPv4. Interface addresses are no longer accepted 1387 as arguments, their names must be used instead. The utility 1388 will map the interface name to its first IPv4 address as 1389 returned by getifaddrs(3). 1390 1391 * The ifmcstat(8) utility has also been updated to print the MLDv2 1392 endpoint state and source filter lists via sysctl(3). 1393 1394 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1395 loopback of IPv6 multicast datagrams by default; it defaults to 1 1396 to preserve the existing behaviour. Disabling multicast loopback is 1397 recommended for optimal system performance. 1398 1399 * The IPv6 MROUTING code has been changed to examine this sysctl 1400 instead of attempting to perform a group lookup before looping 1401 back forwarded datagrams. 1402 1403 Bump __FreeBSD_version to 800084. 1404 140520090422: 1406 Implement low-level Bluetooth HCI API. 1407 Bump __FreeBSD_version to 800083. 1408 140920090419: 1410 The layout of struct malloc_type, used by modules to register new 1411 memory allocation types, has changed. Most modules will need to 1412 be rebuilt or panics may be experienced. 1413 Bump __FreeBSD_version to 800081. 1414 141520090415: 1416 Anticipate overflowing inp_flags - add inp_flags2. 1417 This changes most offsets in inpcb, so checking v4 connection 1418 state will require a world rebuild. 1419 Bump __FreeBSD_version to 800080. 1420 142120090415: 1422 Add an llentry to struct route and struct route_in6. Modules 1423 embedding a struct route will need to be recompiled. 1424 Bump __FreeBSD_version to 800079. 1425 142620090414: 1427 The size of rt_metrics_lite and by extension rtentry has changed. 1428 Networking administration apps will need to be recompiled. 1429 The route command now supports show as an alias for get, weighting 1430 of routes, sticky and nostick flags to alter the behavior of stateful 1431 load balancing. 1432 Bump __FreeBSD_version to 800078. 1433 143420090408: 1435 Do not use Giant for kbdmux(4) locking. This is wrong and 1436 apparently causing more problems than it solves. This will 1437 re-open the issue where interrupt handlers may race with 1438 kbdmux(4) in polling mode. Typical symptoms include (but 1439 not limited to) duplicated and/or missing characters when 1440 low level console functions (such as gets) are used while 1441 interrupts are enabled (for example geli password prompt, 1442 mountroot prompt etc.). Disabling kbdmux(4) may help. 1443 144420090407: 1445 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1446 kernel modules referencing any of the above need to be recompiled. 1447 Bump __FreeBSD_version to 800075. 1448 144920090320: 1450 GEOM_PART has become the default partition slicer for storage devices, 1451 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1452 introduces some changes: 1453 1454 MSDOS/EBR: the devices created from MSDOS extended partition entries 1455 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1456 to devices with offset-based names. fstabs may need to be modified. 1457 1458 BSD: the "geometry does not match label" warning is harmless in most 1459 cases but it points to problems in file system misalignment with 1460 disk geometry. The "c" partition is now implicit, covers the whole 1461 top-level drive and cannot be (mis)used by users. 1462 1463 General: Kernel dumps are now not allowed to be written to devices 1464 whose partition types indicate they are meant to be used for file 1465 systems (or, in case of MSDOS partitions, as something else than 1466 the "386BSD" type). 1467 1468 Most of these changes date approximately from 200812. 1469 147020090319: 1471 The uscanner(4) driver has been removed from the kernel. This follows 1472 Linux removing theirs in 2.6 and making libusb the default interface 1473 (supported by sane). 1474 147520090319: 1476 The multicast forwarding code has been cleaned up. netstat(1) 1477 only relies on KVM now for printing bandwidth upcall meters. 1478 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1479 ip6_mroute_mod respectively. The config(5) options for statically 1480 compiling this code remain the same, i.e. 'options MROUTING'. 1481 148220090315: 1483 Support for the IFF_NEEDSGIANT network interface flag has been 1484 removed, which means that non-MPSAFE network device drivers are no 1485 longer supported. In particular, if_ar, if_sr, and network device 1486 drivers from the old (legacy) USB stack can no longer be built or 1487 used. 1488 148920090313: 1490 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1491 a bunch of new language catalog files have also been added. 1492 This means that some common libc messages are now localized and 1493 they depend on the LC_MESSAGES environmental variable. 1494 149520090313: 1496 The k8temp(4) driver has been renamed to amdtemp(4) since 1497 support for Family 10 and Family 11 CPU families was added. 1498 149920090309: 1500 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1501 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1502 1503 For kernel developers, the most important changes are that the 1504 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1505 and this lock has been downgraded to a non-recursive mutex. 1506 1507 Transport protocols (UDP, Raw IP) are now responsible for filtering 1508 inbound multicast traffic according to group membership and source 1509 filters. The imo_multicast_filter() KPI exists for this purpose. 1510 Transports which do not use multicast (SCTP, TCP) already reject 1511 multicast by default. Forwarding and receive performance may improve 1512 as a mutex acquisition is no longer needed in the ip_input() 1513 low-level input path. in_addmulti() and in_delmulti() are shimmed 1514 to new KPIs which exist to support SSM in-kernel. 1515 1516 For application developers, it is recommended that loopback of 1517 multicast datagrams be disabled for best performance, as this 1518 will still cause the lock to be taken for each looped-back 1519 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1520 be tuned to 0 to disable loopback by default; it defaults to 1 1521 to preserve the existing behaviour. 1522 1523 For systems administrators, to obtain best performance with 1524 multicast reception and multiple groups, it is always recommended 1525 that a card with a suitably precise hash filter is used. Hash 1526 collisions will still result in the lock being taken within the 1527 transport protocol input path to check group membership. 1528 1529 If deploying FreeBSD in an environment with IGMP snooping switches, 1530 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1531 enabled; this forces 224.0.0.0/24 group membership to be announced 1532 via IGMP. 1533 1534 The size of 'struct igmpstat' has changed; netstat needs to be 1535 recompiled to reflect this. 1536 Bump __FreeBSD_version to 800070. 1537 153820090309: 1539 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1540 updated to use it. This requires a buildworld/installworld in order to 1541 update the library and dependencies (usbconfig, etc). Its advisable to 1542 rebuild all ports which uses libusb. More specific directions are given 1543 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1544 libusb are no longer required and can be removed. 1545 154620090302: 1547 A workaround is committed to allow the creation of System V shared 1548 memory segment of size > 2 GB on the 64-bit architectures. 1549 Due to a limitation of the existing ABI, the shm_segsz member 1550 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1551 wrong for large segments. Note that limits must be explicitly 1552 raised to allow such segments to be created. 1553 155420090301: 1555 The layout of struct ifnet has changed, requiring a rebuild of all 1556 network device driver modules. 1557 155820090227: 1559 The /dev handling for the new USB stack has changed, a 1560 buildworld/installworld is required for libusb20. 1561 156220090223: 1563 The new USB2 stack has now been permanently moved in and all kernel and 1564 module names reverted to their previous values (eg, usb, ehci, ohci, 1565 ums, ...). The old usb stack can be compiled in by prefixing the name 1566 with the letter 'o', the old usb modules have been removed. 1567 Updating entry 20090216 for xorg and 20090215 for libmap may still 1568 apply. 1569 157020090217: 1571 The rc.conf(5) option if_up_delay has been renamed to 1572 defaultroute_delay to better reflect its purpose. If you have 1573 customized this setting in /etc/rc.conf you need to update it to 1574 use the new name. 1575 157620090216: 1577 xorg 7.4 wants to configure its input devices via hald which does not 1578 yet work with USB2. If the keyboard/mouse does not work in xorg then 1579 add 1580 Option "AllowEmptyInput" "off" 1581 to your ServerLayout section. This will cause X to use the configured 1582 kbd and mouse sections from your xorg.conf. 1583 158420090215: 1585 The GENERIC kernels for all architectures now default to the new USB2 1586 stack. No kernel config options or code have been removed so if a 1587 problem arises please report it and optionally revert to the old USB 1588 stack. If you are loading USB kernel modules or have a custom kernel 1589 that includes GENERIC then ensure that usb names are also changed over, 1590 eg uftdi -> usb2_serial_ftdi. 1591 1592 Older programs linked against the ports libusb 0.1 need to be 1593 redirected to the new stack's libusb20. /etc/libmap.conf can 1594 be used for this: 1595 # Map old usb library to new one for usb2 stack 1596 libusb-0.1.so.8 libusb20.so.1 1597 159820090209: 1599 All USB ethernet devices now attach as interfaces under the name ueN 1600 (eg. ue0). This is to provide a predictable name as vendors often 1601 change usb chipsets in a product without notice. 1602 160320090203: 1604 The ichsmb(4) driver has been changed to require SMBus slave 1605 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1606 All of the other SMBus controller drivers require left-justified 1607 slave addresses, so this change makes all the drivers provide the 1608 same interface. 1609 161020090201: 1611 INET6 statistics (struct ip6stat) was updated. 1612 netstat(1) needs to be recompiled. 1613 161420090119: 1615 NTFS has been removed from GENERIC kernel on amd64 to match 1616 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1617 will load ntfs.ko module automatically when NTFS support is 1618 actually needed, unless ntfs.ko is not installed or security 1619 level prohibits loading kernel modules. If either is the case, 1620 "options NTFS" has to be added into kernel config. 1621 162220090115: 1623 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1624 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1625 800061. User space tools that rely on the size of struct tcpcb in 1626 tcp_var.h (e.g. sockstat) need to be recompiled. 1627 162820081225: 1629 ng_tty(4) module updated to match the new TTY subsystem. 1630 Due to API change, user-level applications must be updated. 1631 New API support added to mpd5 CVS and expected to be present 1632 in next mpd5.3 release. 1633 163420081219: 1635 With __FreeBSD_version 800060 the makefs tool is part of 1636 the base system (it was a port). 1637 163820081216: 1639 The afdata and ifnet locks have been changed from mutexes to 1640 rwlocks, network modules will need to be re-compiled. 1641 164220081214: 1643 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1644 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1645 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1646 architecture and 40 bytes on 64-bit architecture. The userland 1647 applications "arp" and "ndp" have been updated accordingly. 1648 The output from "netstat -r" shows only routing entries and 1649 none of the L2 information. 1650 165120081130: 1652 __FreeBSD_version 800057 marks the switchover from the 1653 binary ath hal to source code. Users must add the line: 1654 1655 options AH_SUPPORT_AR5416 1656 1657 to their kernel config files when specifying: 1658 1659 device ath_hal 1660 1661 The ath_hal module no longer exists; the code is now compiled 1662 together with the driver in the ath module. It is now 1663 possible to tailor chip support (i.e. reduce the set of chips 1664 and thereby the code size); consult ath_hal(4) for details. 1665 166620081121: 1667 __FreeBSD_version 800054 adds memory barriers to 1668 <machine/atomic.h>, new interfaces to ifnet to facilitate 1669 multiple hardware transmit queues for cards that support 1670 them, and a lock-less ring-buffer implementation to 1671 enable drivers to more efficiently manage queueing of 1672 packets. 1673 167420081117: 1675 A new version of ZFS (version 13) has been merged to -HEAD. 1676 This version has zpool attribute "listsnapshots" off by 1677 default, which means "zfs list" does not show snapshots, 1678 and is the same as Solaris behavior. 1679 168020081028: 1681 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1682 168320081009: 1684 The uhci, ohci, ehci and slhci USB Host controller drivers have 1685 been put into separate modules. If you load the usb module 1686 separately through loader.conf you will need to load the 1687 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1688 controller add the following to loader.conf: 1689 1690 uhci_load="YES" 1691 ehci_load="YES" 1692 169320081009: 1694 The ABI used by the PMC toolset has changed. Please keep 1695 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1696 sync. 1697 169820081009: 1699 atapci kernel module now includes only generic PCI ATA 1700 driver. AHCI driver moved to ataahci kernel module. 1701 All vendor-specific code moved into separate kernel modules: 1702 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1703 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1704 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1705 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1706 170720080820: 1708 The TTY subsystem of the kernel has been replaced by a new 1709 implementation, which provides better scalability and an 1710 improved driver model. Most common drivers have been migrated to 1711 the new TTY subsystem, while others have not. The following 1712 drivers have not yet been ported to the new TTY layer: 1713 1714 PCI/ISA: 1715 cy, digi, rc, rp, sio 1716 1717 USB: 1718 ubser, ucycom 1719 1720 Line disciplines: 1721 ng_h4, ng_tty, ppp, sl, snp 1722 1723 Adding these drivers to your kernel configuration file shall 1724 cause compilation to fail. 1725 172620080818: 1727 ntpd has been upgraded to 4.2.4p5. 1728 172920080801: 1730 OpenSSH has been upgraded to 5.1p1. 1731 1732 For many years, FreeBSD's version of OpenSSH preferred DSA 1733 over RSA for host and user authentication keys. With this 1734 upgrade, we've switched to the vendor's default of RSA over 1735 DSA. This may cause upgraded clients to warn about unknown 1736 host keys even for previously known hosts. Users should 1737 follow the usual procedure for verifying host keys before 1738 accepting the RSA key. 1739 1740 This can be circumvented by setting the "HostKeyAlgorithms" 1741 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1742 command line. 1743 1744 Please note that the sequence of keys offered for 1745 authentication has been changed as well. You may want to 1746 specify IdentityFile in a different order to revert this 1747 behavior. 1748 174920080713: 1750 The sio(4) driver has been removed from the i386 and amd64 1751 kernel configuration files. This means uart(4) is now the 1752 default serial port driver on those platforms as well. 1753 1754 To prevent collisions with the sio(4) driver, the uart(4) driver 1755 uses different names for its device nodes. This means the 1756 onboard serial port will now most likely be called "ttyu0" 1757 instead of "ttyd0". You may need to reconfigure applications to 1758 use the new device names. 1759 1760 When using the serial port as a boot console, be sure to update 1761 /boot/device.hints and /etc/ttys before booting the new kernel. 1762 If you forget to do so, you can still manually specify the hints 1763 at the loader prompt: 1764 1765 set hint.uart.0.at="isa" 1766 set hint.uart.0.port="0x3F8" 1767 set hint.uart.0.flags="0x10" 1768 set hint.uart.0.irq="4" 1769 boot -s 1770 177120080609: 1772 The gpt(8) utility has been removed. Use gpart(8) to partition 1773 disks instead. 1774 177520080603: 1776 The version that Linuxulator emulates was changed from 2.4.2 1777 to 2.6.16. If you experience any problems with Linux binaries 1778 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1779 if it fixes the problem contact emulation mailing list. 1780 178120080525: 1782 ISDN4BSD (I4B) was removed from the src tree. You may need to 1783 update a your kernel configuration and remove relevant entries. 1784 178520080509: 1786 I have checked in code to support multiple routing tables. 1787 See the man pages setfib(1) and setfib(2). 1788 This is a hopefully backwards compatible version, 1789 but to make use of it you need to compile your kernel 1790 with options ROUTETABLES=2 (or more up to 16). 1791 179220080420: 1793 The 802.11 wireless support was redone to enable multi-bss 1794 operation on devices that are capable. The underlying device 1795 is no longer used directly but instead wlanX devices are 1796 cloned with ifconfig. This requires changes to rc.conf files. 1797 For example, change: 1798 ifconfig_ath0="WPA DHCP" 1799 to 1800 wlans_ath0=wlan0 1801 ifconfig_wlan0="WPA DHCP" 1802 see rc.conf(5) for more details. In addition, mergemaster of 1803 /etc/rc.d is highly recommended. Simultaneous update of userland 1804 and kernel wouldn't hurt either. 1805 1806 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1807 modules were merged into the base wlan module. All references 1808 to these modules (e.g. in kernel config files) must be removed. 1809 181020080408: 1811 psm(4) has gained write(2) support in native operation level. 1812 Arbitrary commands can be written to /dev/psm%d and status can 1813 be read back from it. Therefore, an application is responsible 1814 for status validation and error recovery. It is a no-op in 1815 other operation levels. 1816 181720080312: 1818 Support for KSE threading has been removed from the kernel. To 1819 run legacy applications linked against KSE libmap.conf may 1820 be used. The following libmap.conf may be used to ensure 1821 compatibility with any prior release: 1822 1823 libpthread.so.1 libthr.so.1 1824 libpthread.so.2 libthr.so.2 1825 libkse.so.3 libthr.so.3 1826 182720080301: 1828 The layout of struct vmspace has changed. This affects libkvm 1829 and any executables that link against libkvm and use the 1830 kvm_getprocs() function. In particular, but not exclusively, 1831 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1832 The effects are minimal, but it's advisable to upgrade world 1833 nonetheless. 1834 183520080229: 1836 The latest em driver no longer has support in it for the 1837 82575 adapter, this is now moved to the igb driver. The 1838 split was done to make new features that are incompatible 1839 with older hardware easier to do. 1840 184120080220: 1842 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1843 likewise the kernel option is now GEOM_LINUX_LVM. 1844 184520080211: 1846 The default NFS mount mode has changed from UDP to TCP for 1847 increased reliability. If you rely on (insecurely) NFS 1848 mounting across a firewall you may need to update your 1849 firewall rules. 1850 185120080208: 1852 Belatedly note the addition of m_collapse for compacting 1853 mbuf chains. 1854 185520080126: 1856 The fts(3) structures have been changed to use adequate 1857 integer types for their members and so to be able to cope 1858 with huge file trees. The old fts(3) ABI is preserved 1859 through symbol versioning in libc, so third-party binaries 1860 using fts(3) should still work, although they will not take 1861 advantage of the extended types. At the same time, some 1862 third-party software might fail to build after this change 1863 due to unportable assumptions made in its source code about 1864 fts(3) structure members. Such software should be fixed 1865 by its vendor or, in the worst case, in the ports tree. 1866 FreeBSD_version 800015 marks this change for the unlikely 1867 case that a portable fix is impossible. 1868 186920080123: 1870 To upgrade to -current after this date, you must be running 1871 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1872 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1873 187420071128: 1875 The ADAPTIVE_GIANT kernel option has been retired because its 1876 functionality is the default now. 1877 187820071118: 1879 The AT keyboard emulation of sunkbd(4) has been turned on 1880 by default. In order to make the special symbols of the Sun 1881 keyboards driven by sunkbd(4) work under X these now have 1882 to be configured the same way as Sun USB keyboards driven 1883 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1884 1885 Option "XkbLayout" "us" 1886 Option "XkbRules" "xorg" 1887 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1888 188920071024: 1890 It has been decided that it is desirable to provide ABI 1891 backwards compatibility to the FreeBSD 4/5/6 versions of the 1892 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1893 broken with the introduction of PCI domain support (see the 1894 20070930 entry). Unfortunately, this required the ABI of 1895 PCIOCGETCONF to be broken again in order to be able to 1896 provide backwards compatibility to the old version of that 1897 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1898 again. As for prominent ports this affects neither pciutils 1899 nor xorg-server this time, the hal port needs to be rebuilt 1900 however. 1901 190220071020: 1903 The misnamed kthread_create() and friends have been renamed 1904 to kproc_create() etc. Many of the callers already 1905 used kproc_start().. 1906 I will return kthread_create() and friends in a while 1907 with implementations that actually create threads, not procs. 1908 Renaming corresponds with version 800002. 1909 191020071010: 1911 RELENG_7 branched. 1912 1913COMMON ITEMS: 1914 1915 General Notes 1916 ------------- 1917 Avoid using make -j when upgrading. While generally safe, there are 1918 sometimes problems using -j to upgrade. If your upgrade fails with 1919 -j, please try again without -j. From time to time in the past there 1920 have been problems using -j with buildworld and/or installworld. This 1921 is especially true when upgrading between "distant" versions (eg one 1922 that cross a major release boundary or several minor releases, or when 1923 several months have passed on the -current branch). 1924 1925 Sometimes, obscure build problems are the result of environment 1926 poisoning. This can happen because the make utility reads its 1927 environment when searching for values for global variables. To run 1928 your build attempts in an "environmental clean room", prefix all make 1929 commands with 'env -i '. See the env(1) manual page for more details. 1930 1931 When upgrading from one major version to another it is generally best 1932 to upgrade to the latest code in the currently installed branch first, 1933 then do an upgrade to the new branch. This is the best-tested upgrade 1934 path, and has the highest probability of being successful. Please try 1935 this approach before reporting problems with a major version upgrade. 1936 1937 When upgrading a live system, having a root shell around before 1938 installing anything can help undo problems. Not having a root shell 1939 around can lead to problems if pam has changed too much from your 1940 starting point to allow continued authentication after the upgrade. 1941 1942 ZFS notes 1943 --------- 1944 When upgrading the boot ZFS pool to a new version, always follow 1945 these two steps: 1946 1947 1.) recompile and reinstall the ZFS boot loader and boot block 1948 (this is part of "make buildworld" and "make installworld") 1949 1950 2.) update the ZFS boot block on your boot drive 1951 1952 The following example updates the ZFS boot block on the first 1953 partition (freebsd-boot) of a GPT partitioned drive ad0: 1954 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 1955 1956 Non-boot pools do not need these updates. 1957 1958 To build a kernel 1959 ----------------- 1960 If you are updating from a prior version of FreeBSD (even one just 1961 a few days old), you should follow this procedure. It is the most 1962 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1963 1964 make kernel-toolchain 1965 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1966 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1967 1968 To test a kernel once 1969 --------------------- 1970 If you just want to boot a kernel once (because you are not sure 1971 if it works, or if you want to boot a known bad kernel to provide 1972 debugging information) run 1973 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1974 nextboot -k testkernel 1975 1976 To just build a kernel when you know that it won't mess you up 1977 -------------------------------------------------------------- 1978 This assumes you are already running a CURRENT system. Replace 1979 ${arch} with the architecture of your machine (e.g. "i386", 1980 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1981 1982 cd src/sys/${arch}/conf 1983 config KERNEL_NAME_HERE 1984 cd ../compile/KERNEL_NAME_HERE 1985 make depend 1986 make 1987 make install 1988 1989 If this fails, go to the "To build a kernel" section. 1990 1991 To rebuild everything and install it on the current system. 1992 ----------------------------------------------------------- 1993 # Note: sometimes if you are running current you gotta do more than 1994 # is listed here if you are upgrading from a really old current. 1995 1996 <make sure you have good level 0 dumps> 1997 make buildworld 1998 make kernel KERNCONF=YOUR_KERNEL_HERE 1999 [1] 2000 <reboot in single user> [3] 2001 mergemaster -p [5] 2002 make installworld 2003 mergemaster -i [4] 2004 make delete-old [6] 2005 <reboot> 2006 2007 To cross-install current onto a separate partition 2008 -------------------------------------------------- 2009 # In this approach we use a separate partition to hold 2010 # current's root, 'usr', and 'var' directories. A partition 2011 # holding "/", "/usr" and "/var" should be about 2GB in 2012 # size. 2013 2014 <make sure you have good level 0 dumps> 2015 <boot into -stable> 2016 make buildworld 2017 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2018 <maybe newfs current's root partition> 2019 <mount current's root partition on directory ${CURRENT_ROOT}> 2020 make installworld DESTDIR=${CURRENT_ROOT} 2021 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2022 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2023 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2024 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2025 <reboot into current> 2026 <do a "native" rebuild/install as described in the previous section> 2027 <maybe install compatibility libraries from ports/misc/compat*> 2028 <reboot> 2029 2030 2031 To upgrade in-place from stable to current 2032 ---------------------------------------------- 2033 <make sure you have good level 0 dumps> 2034 make buildworld [9] 2035 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2036 [1] 2037 <reboot in single user> [3] 2038 mergemaster -p [5] 2039 make installworld 2040 mergemaster -i [4] 2041 make delete-old [6] 2042 <reboot> 2043 2044 Make sure that you've read the UPDATING file to understand the 2045 tweaks to various things you need. At this point in the life 2046 cycle of current, things change often and you are on your own 2047 to cope. The defaults can also change, so please read ALL of 2048 the UPDATING entries. 2049 2050 Also, if you are tracking -current, you must be subscribed to 2051 freebsd-current@freebsd.org. Make sure that before you update 2052 your sources that you have read and understood all the recent 2053 messages there. If in doubt, please track -stable which has 2054 much fewer pitfalls. 2055 2056 [1] If you have third party modules, such as vmware, you 2057 should disable them at this point so they don't crash your 2058 system on reboot. 2059 2060 [3] From the bootblocks, boot -s, and then do 2061 fsck -p 2062 mount -u / 2063 mount -a 2064 cd src 2065 adjkerntz -i # if CMOS is wall time 2066 Also, when doing a major release upgrade, it is required that 2067 you boot into single user mode to do the installworld. 2068 2069 [4] Note: This step is non-optional. Failure to do this step 2070 can result in a significant reduction in the functionality of the 2071 system. Attempting to do it by hand is not recommended and those 2072 that pursue this avenue should read this file carefully, as well 2073 as the archives of freebsd-current and freebsd-hackers mailing lists 2074 for potential gotchas. The -U option is also useful to consider. 2075 See mergemaster(8) for more information. 2076 2077 [5] Usually this step is a noop. However, from time to time 2078 you may need to do this if you get unknown user in the following 2079 step. It never hurts to do it all the time. You may need to 2080 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2081 install) after the buildworld before this step if you last updated 2082 from current before 20130425 or from -stable before 20130430. 2083 2084 [6] This only deletes old files and directories. Old libraries 2085 can be deleted by "make delete-old-libs", but you have to make 2086 sure that no program is using those libraries anymore. 2087 2088 [8] In order to have a kernel that can run the 4.x binaries needed to 2089 do an installworld, you must include the COMPAT_FREEBSD4 option in 2090 your kernel. Failure to do so may leave you with a system that is 2091 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2092 required to run the 5.x binaries on more recent kernels. And so on 2093 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2094 2095 Make sure that you merge any new devices from GENERIC since the 2096 last time you updated your kernel config file. 2097 2098 [9] When checking out sources, you must include the -P flag to have 2099 cvs prune empty directories. 2100 2101 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2102 "?=" instead of the "=" assignment operator, so that buildworld can 2103 override the CPUTYPE if it needs to. 2104 2105 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2106 not on the command line, or in /etc/make.conf. buildworld will 2107 warn if it is improperly defined. 2108FORMAT: 2109 2110This file contains a list, in reverse chronological order, of major 2111breakages in tracking -current. It is not guaranteed to be a complete 2112list of such breakages, and only contains entries since October 10, 2007. 2113If you need to see UPDATING entries from before that date, you will need 2114to fetch an UPDATING file from an older FreeBSD release. 2115 2116Copyright information: 2117 2118Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2119 2120Redistribution, publication, translation and use, with or without 2121modification, in full or in part, in any form or format of this 2122document are permitted without further permission from the author. 2123 2124THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2125IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2126WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2127DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2128INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2129(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2130SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2131HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2132STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2133IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2134POSSIBILITY OF SUCH DAMAGE. 2135 2136Contact Warner Losh if you have any questions about your use of 2137this document. 2138 2139$FreeBSD: releng/10.0/UPDATING 275854 2014-12-17 06:59:47Z delphij $ 2140