UPDATING revision 277195
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 1920150114: p16 FreeBSD-SA-15:01.openssl 20 Fix multiple vulnerabilities in OpenSSL. [SA-15:01] 21 2220141223: p15 FreeBSD-SA-14:31.ntp 23 FreeBSD-EN-14:13.freebsd-update 24 25 Fix multiple vulnerabilities in NTP suite. [SA-14:31] 26 Fix directory deletion issue in freebsd-update. [EN-14:13] 27 2820141217: p14 FreeBSD-SA-14:30.unbound 29 Fix unbound remote denial of service vulnerability. 30 3120141210: p13 FreeBSD-SA-14:28.file 32 Fix multiple vulnerabilities in file(1) and libmagic(3). 33 3420141104: p12 FreeBSD-SA-14:24.sshd 35 FreeBSD-SA-14:25.setlogin 36 FreeBSD-SA-14:26.ftp 37 FreeBSD-EN-14:12.zfs 38 39 Fix denial of service attack against sshd(8). [SA-14:24] 40 41 Fix kernel stack disclosure in setlogin(2) / getlogin(2). 42 [SA-14:25] 43 44 Fix remote command execution in ftp(1). [SA-14:26] 45 46 Fix NFSv4 and ZFS cache consistency issue. [EN-14:12] 47 4820141022: p11 FreeBSD-EN-14:10.tzdata 49 50 Time zone data file update. [EN-14:10] 51 5220141021: p10 FreeBSD-SA-14:20.rtsold 53 FreeBSD-SA-14:21.routed 54 FreeBSD-SA-14:22.namei 55 FreeBSD-SA-14:23.openssl 56 57 Fix rtsold(8) remote buffer overflow vulnerability. [SA-14:20] 58 59 Fix routed(8) remote denial of service vulnerability. [SA-14:21] 60 61 Fix memory leak in sandboxed namei lookup. [SA-14:22] 62 63 Fix OpenSSL multiple vulnerabilities. [SA-14:23] 64 6520140916: p9 FreeBSD-SA-14:19.tcp 66 Fix Denial of Service in TCP packet processing. [SA-14:19] 67 6820140909: p8 FreeBSD-SA-14:18.openssl 69 Fix OpenSSL multiple vulnerabilities. [SA-14:18] 70 7120140708: p7 FreeBSD-SA-14:17.kmem 72 Fix kernel memory disclosure in control messages and SCTP 73 notifications. [SA-14:17] 74 7520140624: p6 FreeBSD-SA-14:15.iconv 76 FreeBSD-SA-14:16.file 77 FreeBSD-EN-14:07.pmap 78 79 Fix iconv(3) NULL pointer dereference and out-of-bounds array 80 access. [SA-14:15] 81 82 Fix multiple vulnerabilities in file(1) and libmagic(3). 83 [SA-14:16] 84 85 Worked around bug with PCID implementation. [EN-14:07] 86 8720140605: p5 FreeBSD-SA-14:14.openssl 88 Fix OpenSSL multiple vulnerabilities. [SA-14:14] 89 9020140603: p4 FreeBSD-SA-14:11.sendmail 91 FreeBSD-SA-14:13.pam 92 FreeBSD-EN-14:06.exec 93 94 Fix sendmail improper close-on-exec flag handling. [SA-14:11] 95 96 Fix incorrect error handling in PAM policy parser. [SA-14:13] 97 98 Fix triple-fault when executing from a threaded process. 99 [EN-14:06] 100 10120140513: p3 FreeBSD-SA-14:10.openssl 102 FreeBSD-EN-14:05.ciss 103 104 Fix OpenSSL NULL pointer deference vulnerability. [SA-14:10] 105 106 Fix data corruption with ciss(4). [EN-14:05] 107 10820140430: p2 FreeBSD-SA-14:07.devfs 109 FreeBSD-SA-14:08.tcp 110 FreeBSD-SA-14:09.openssl 111 112 Fix devfs rules not applied by default for jails. [SA-14:07] 113 114 Fix TCP reassembly vulnerability. [SA-14:08] 115 116 Fix OpenSSL use-after-free vulnerability. [SA-14:09] 117 11820140408: p1 FreeBSD-SA-14:05.nfsserver 119 FreeBSD-SA-14:06.openssl 120 Fix deadlock in the NFS server. [SA-14:05] 121 122 Fix multiple vulnerabilities in OpenSSL. [SA-14:06] 123 12420131223: 125 The behavior of gss_pseudo_random() for the krb5 mechanism 126 has changed, for applications requesting a longer random string 127 than produced by the underlying enctype's pseudo-random() function. 128 In particular, the random string produced from a session key of 129 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 130 be different at the 17th octet and later, after this change. 131 The counter used in the PRF+ construction is now encoded as a 132 big-endian integer in accordance with RFC 4402. 133 13420131031: 135 The default version of mtree is nmtree which is obtained from 136 NetBSD. The output is generally the same, but may vary 137 slightly. If you found you need identical output adding 138 "-F freebsd9" to the command line should do the trick. For the 139 time being, the old mtree is available as fmtree. 140 14120131014: 142 libbsdyml has been renamed to libyaml and moved to /usr/lib/private. 143 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg 144 1.1.4_8 and verify bsdyml not linked in, before running "make 145 delete-old-libs": 146 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean 147 or 148 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml 149 15020131010: 151 The rc.d/jail script has been updated to support jail(8) 152 configuration file. The "jail_<jname>_*" rc.conf(5) variables 153 for per-jail configuration are automatically converted to 154 /var/run/jail.<jname>.conf before the jail(8) utility is invoked. 155 This is transparently backward compatible. See below about some 156 incompatibilities and rc.conf(5) manual page for more details. 157 158 These variables are now deprecated in favor of jail(8) configuration 159 file. One can use "rc.d/jail config <jname>" command to generate 160 a jail(8) configuration file in /var/run/jail.<jname>.conf without 161 running the jail(8) utility. The default pathname of the 162 configuration file is /etc/jail.conf and can be specified by 163 using $jail_conf or $jail_<jname>_conf variables. 164 165 Please note that jail_devfs_ruleset accepts an integer at 166 this moment. Please consider to rewrite the ruleset name 167 with an integer. 168 16920130930: 170 BIND has been removed from the base system. If all you need 171 is a local resolver, simply enable and start the local_unbound 172 service instead. Otherwise, several versions of BIND are 173 available in the ports tree. The dns/bind99 port is one example. 174 175 With this change, nslookup(1) and dig(1) are no longer in the base 176 system. Users should instead use host(1) and drill(1) which are 177 in the base system. Alternatively, nslookup and dig can 178 be obtained by installing the dns/bind-tools port. 179 18020130916: 181 With the addition of unbound(8), a new unbound user is now 182 required during installworld. "mergemaster -p" can be used to 183 add the user prior to installworld, as documented in the handbook. 184 18520130911: 186 OpenSSH is now built with DNSSEC support, and will by default 187 silently trust signed SSHFP records. This can be controlled with 188 the VerifyHostKeyDNS client configuration setting. DNSSEC support 189 can be disabled entirely with the WITHOUT_LDNS option in src.conf. 190 19120130906: 192 The GNU Compiler Collection and C++ standard library (libstdc++) 193 are no longer built by default on platforms where clang is the system 194 compiler. You can enable them with the WITH_GCC and WITH_GNUCXX 195 options in src.conf. 196 19720130905: 198 The PROCDESC kernel option is now part of the GENERIC kernel 199 configuration and is required for the rwhod(8) to work. 200 If you are using custom kernel configuration, you should include 201 'options PROCDESC'. 202 20320130905: 204 The API and ABI related to the Capsicum framework was modified 205 in backward incompatible way. The userland libraries and programs 206 have to be recompiled to work with the new kernel. This includes the 207 following libraries and programs, but the whole buildworld is 208 advised: libc, libprocstat, dhclient, tcpdump, hastd, hastctl, 209 kdump, procstat, rwho, rwhod, uniq. 210 21120130903: 212 AES-NI intrinsic support has been added to gcc. The AES-NI module 213 has been updated to use this support. A new gcc is required to build 214 the aesni module on both i386 and amd64. 215 21620130821: 217 The PADLOCK_RNG and RDRAND_RNG kernel options are now devices. 218 Thus "device padlock_rng" and "device rdrand_rng" should be 219 used instead of "options PADLOCK_RNG" & "options RDRAND_RNG". 220 22120130813: 222 WITH_ICONV has been split into two feature sets. WITH_ICONV now 223 enables just the iconv* functionality and is now on by default. 224 WITH_LIBICONV_COMPAT enables the libiconv api and link time 225 compatability. Set WITHOUT_ICONV to build the old way. 226 If you have been using WITH_ICONV before, you will very likely 227 need to turn on WITH_LIBICONV_COMPAT. 228 22920130806: 230 INVARIANTS option now enables DEBUG for code with OpenSolaris and 231 Illumos origin, including ZFS. If you have INVARIANTS in your 232 kernel configuration, then there is no need to set DEBUG or ZFS_DEBUG 233 explicitly. 234 DEBUG used to enable witness(9) tracking of OpenSolaris (mostly ZFS) 235 locks if WITNESS option was set. Because that generated a lot of 236 witness(9) reports and all of them were believed to be false 237 positives, this is no longer done. New option OPENSOLARIS_WITNESS 238 can be used to achieve the previous behavior. 239 24020130806: 241 Timer values in IPv6 data structures now use time_uptime instead 242 of time_second. Although this is not a user-visible functional 243 change, userland utilities which directly use them---ndp(8), 244 rtadvd(8), and rtsold(8) in the base system---need to be updated 245 to r253970 or later. 246 24720130802: 248 find -delete can now delete the pathnames given as arguments, 249 instead of only files found below them or if the pathname did 250 not contain any slashes. Formerly, the following error message 251 would result: 252 253 find: -delete: <path>: relative path potentially not safe 254 255 Deleting the pathnames given as arguments can be prevented 256 without error messages using -mindepth 1 or by changing 257 directory and passing "." as argument to find. This works in the 258 old as well as the new version of find. 259 26020130726: 261 Behavior of devfs rules path matching has been changed. 262 Pattern is now always matched against fully qualified devfs 263 path and slash characters must be explicitly matched by 264 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 265 subdirectories must be reviewed. 266 26720130716: 268 The default ARM ABI has changed to the ARM EABI. The old ABI is 269 incompatible with the ARM EABI and all programs and modules will 270 need to be rebuilt to work with a new kernel. 271 272 To keep using the old ABI ensure the WITHOUT_ARM_EABI knob is set. 273 274 NOTE: Support for the old ABI will be removed in the future and 275 users are advised to upgrade. 276 27720130709: 278 pkg_install has been disconnected from the build if you really need it 279 you should add WITH_PKGTOOLS in your src.conf(5). 280 28120130709: 282 Most of network statistics structures were changed to be able 283 keep 64-bits counters. Thus all tools, that work with networking 284 statistics, must be rebuilt (netstat(1), bsnmpd(1), etc.) 285 28620130629: 287 Fix targets that run multiple make's to use && rather than ; 288 so that subsequent steps depend on success of previous. 289 290 NOTE: if building 'universe' with -j* on stable/8 or stable/9 291 it would be better to start the build using bmake, to avoid 292 overloading the machine. 293 29420130618: 295 Fix a bug that allowed a tracing process (e.g. gdb) to write 296 to a memory-mapped file in the traced process's address space 297 even if neither the traced process nor the tracing process had 298 write access to that file. 299 30020130615: 301 CVS has been removed from the base system. An exact copy 302 of the code is available from the devel/cvs port. 303 30420130613: 305 Some people report the following error after the switch to bmake: 306 307 make: illegal option -- J 308 usage: make [-BPSXeiknpqrstv] [-C directory] [-D variable] 309 ... 310 *** [buildworld] Error code 2 311 312 this likely due to an old instance of make in 313 ${MAKEPATH} (${MAKEOBJDIRPREFIX}${.CURDIR}/make.${MACHINE}) 314 which src/Makefile will use that blindly, if it exists, so if 315 you see the above error: 316 317 rm -rf `make -V MAKEPATH` 318 319 should resolve it. 320 32120130516: 322 Use bmake by default. 323 Whereas before one could choose to build with bmake via 324 -DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old 325 make. The goal is to remove these knobs for 10-RELEASE. 326 327 It is worth noting that bmake (like gmake) treats the command 328 line as the unit of failure, rather than statements within the 329 command line. Thus '(cd some/where && dosomething)' is safer 330 than 'cd some/where; dosomething'. The '()' allows consistent 331 behavior in parallel build. 332 33320130429: 334 Fix a bug that allows NFS clients to issue READDIR on files. 335 33620130426: 337 The WITHOUT_IDEA option has been removed because 338 the IDEA patent expired. 339 34020130426: 341 The sysctl which controls TRIM support under ZFS has been renamed 342 from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled and has been 343 enabled by default. 344 34520130425: 346 The mergemaster command now uses the default MAKEOBJDIRPREFIX 347 rather than creating it's own in the temporary directory in 348 order allow access to bootstrapped versions of tools such as 349 install and mtree. When upgrading from version of FreeBSD where 350 the install command does not support -l, you will need to 351 install a new mergemaster command if mergemaster -p is required. 352 This can be accomplished with the command (cd src/usr.sbin/mergemaster 353 && make install). 354 35520130404: 356 Legacy ATA stack, disabled and replaced by new CAM-based one since 357 FreeBSD 9.0, completely removed from the sources. Kernel modules 358 atadisk and atapi*, user-level tools atacontrol and burncd are 359 removed. Kernel option `options ATA_CAM` is now permanently enabled 360 and removed. 361 36220130319: 363 SOCK_CLOEXEC and SOCK_NONBLOCK flags have been added to socket(2) 364 and socketpair(2). Software, in particular Kerberos, may 365 automatically detect and use these during building. The resulting 366 binaries will not work on older kernels. 367 36820130308: 369 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 370 information, see the respective 20130304 entry). 371 37220130304: 373 Recent commits to callout(9) changed the size of struct callout, 374 so the KBI is probably heavily disturbed. Also, some functions 375 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 376 by macros. Every kernel module using it won't load, so rebuild 377 is requested. 378 379 The ctl device has been re-enabled in GENERIC for i386 and amd64, 380 but does not initialize by default (because of the new CTL_DISABLE 381 option) to save memory. To re-enable it, remove the CTL_DISABLE 382 option from the kernel config file or set kern.cam.ctl.disable=0 383 in /boot/loader.conf. 384 38520130301: 386 The ctl device has been disabled in GENERIC for i386 and amd64. 387 This was done due to the extra memory being allocated at system 388 initialisation time by the ctl driver which was only used if 389 a CAM target device was created. This makes a FreeBSD system 390 unusable on 128MB or less of RAM. 391 39220130208: 393 A new compression method (lz4) has been merged to -HEAD. Please 394 refer to zpool-features(7) for more information. 395 396 Please refer to the "ZFS notes" section of this file for information 397 on upgrading boot ZFS pools. 398 39920130129: 400 A BSD-licensed patch(1) variant has been added and is installed 401 as bsdpatch, being the GNU version the default patch. 402 To inverse the logic and use the BSD-licensed one as default, 403 while having the GNU version installed as gnupatch, rebuild 404 and install world with the WITH_BSD_PATCH knob set. 405 40620130121: 407 Due to the use of the new -l option to install(1) during build 408 and install, you must take care not to directly set the INSTALL 409 make variable in your /etc/make.conf, /etc/src.conf, or on the 410 command line. If you wish to use the -C flag for all installs 411 you may be able to add INSTALL+=-C to /etc/make.conf or 412 /etc/src.conf. 413 41420130118: 415 The install(1) option -M has changed meaning and now takes an 416 argument that is a file or path to append logs to. In the 417 unlikely event that -M was the last option on the command line 418 and the command line contained at least two files and a target 419 directory the first file will have logs appended to it. The -M 420 option served little practical purpose in the last decade so its 421 use is expected to be extremely rare. 422 42320121223: 424 After switching to Clang as the default compiler some users of ZFS 425 on i386 systems started to experience stack overflow kernel panics. 426 Please consider using 'options KSTACK_PAGES=4' in such configurations. 427 42820121222: 429 GEOM_LABEL now mangles label names read from file system metadata. 430 Mangling affect labels containing spaces, non-printable characters, 431 '%' or '"'. Device names in /etc/fstab and other places may need to 432 be updated. 433 43420121217: 435 By default, only the 10 most recent kernel dumps will be saved. To 436 restore the previous behaviour (no limit on the number of kernel dumps 437 stored in the dump directory) add the following line to /etc/rc.conf: 438 439 savecore_flags="" 440 44120121201: 442 With the addition of auditdistd(8), a new auditdistd user is now 443 required during installworld. "mergemaster -p" can be used to 444 add the user prior to installworld, as documented in the handbook. 445 44620121117: 447 The sin6_scope_id member variable in struct sockaddr_in6 is now 448 filled by the kernel before passing the structure to the userland via 449 sysctl or routing socket. This means the KAME-specific embedded scope 450 id in sin6_addr.s6_addr[2] is always cleared in userland application. 451 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 452 __FreeBSD_version is bumped to 1000025. 453 45420121105: 455 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 456 This means that the world and kernel will be compiled with clang 457 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 458 and /usr/bin/cpp. To disable this behavior and revert to building 459 with gcc, compile with WITHOUT_CLANG_IS_CC. Really old versions 460 of current may need to bootstrap WITHOUT_CLANG first if the clang 461 build fails (its compatibility window doesn't extend to the 9 stable 462 branch point). 463 46420121102: 465 The IPFIREWALL_FORWARD kernel option has been removed. Its 466 functionality now turned on by default. 467 46820121023: 469 The ZERO_COPY_SOCKET kernel option has been removed and 470 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 471 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 472 mechanism which is not safe and may result in kernel crashes. 473 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 474 driver supports disposeable external page sized mbuf storage. 475 Proper replacements for both zero-copy mechanisms are under 476 consideration and will eventually lead to complete removal 477 of the two kernel options. 478 47920121023: 480 The IPv4 network stack has been converted to network byte 481 order. The following modules need to be recompiled together 482 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 483 pf(4), ipfw(4), ng_ipfw(4), stf(4). 484 48520121022: 486 Support for non-MPSAFE filesystems was removed from VFS. The 487 VFS_VERSION was bumped, all filesystem modules shall be 488 recompiled. 489 49020121018: 491 All the non-MPSAFE filesystems have been disconnected from 492 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 493 portalfs, smbfs, xfs. 494 49520121016: 496 The interface cloning API and ABI has changed. The following 497 modules need to be recompiled together with kernel: 498 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 499 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 500 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 501 50220121015: 503 The sdhci driver was split in two parts: sdhci (generic SD Host 504 Controller logic) and sdhci_pci (actual hardware driver). 505 No kernel config modifications are required, but if you 506 load sdhc as a module you must switch to sdhci_pci instead. 507 50820121014: 509 Import the FUSE kernel and userland support into base system. 510 51120121013: 512 The GNU sort(1) program has been removed since the BSD-licensed 513 sort(1) has been the default for quite some time and no serious 514 problems have been reported. The corresponding WITH_GNU_SORT 515 knob has also gone. 516 51720121006: 518 The pfil(9) API/ABI for AF_INET family has been changed. Packet 519 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 520 with new kernel. 521 52220121001: 523 The net80211(4) ABI has been changed to allow for improved driver 524 PS-POLL and power-save support. All wireless drivers need to be 525 recompiled to work with the new kernel. 526 52720120913: 528 The random(4) support for the VIA hardware random number 529 generator (`PADLOCK') is no longer enabled unconditionally. 530 Add the padlock_rng device in the custom kernel config if 531 needed. The GENERIC kernels on i386 and amd64 do include the 532 device, so the change only affects the custom kernel 533 configurations. 534 53520120908: 536 The pf(4) packet filter ABI has been changed. pfctl(8) and 537 snmp_pf module need to be recompiled to work with new kernel. 538 53920120828: 540 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 541 to -HEAD. Pools that have empty_bpobj in active state can not be 542 imported read-write with ZFS implementations that do not support 543 this feature. For more information read the zpool-features(5) 544 manual page. 545 54620120727: 547 The sparc64 ZFS loader has been changed to no longer try to auto- 548 detect ZFS providers based on diskN aliases but now requires these 549 to be explicitly listed in the OFW boot-device environment variable. 550 55120120712: 552 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 553 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 554 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 555 55620120712: 557 The following sysctls and tunables have been renamed for consistency 558 with other variables: 559 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 560 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 561 56220120628: 563 The sort utility has been replaced with BSD sort. For now, GNU sort 564 is also available as "gnusort" or the default can be set back to 565 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 566 installed as "bsdsort". 567 56820120611: 569 A new version of ZFS (pool version 5000) has been merged to -HEAD. 570 Starting with this version the old system of ZFS pool versioning 571 is superseded by "feature flags". This concept enables forward 572 compatibility against certain future changes in functionality of ZFS 573 pools. The first read-only compatible "feature flag" for ZFS pools 574 is named "com.delphix:async_destroy". For more information 575 read the new zpool-features(5) manual page. 576 Please refer to the "ZFS notes" section of this file for information 577 on upgrading boot ZFS pools. 578 57920120417: 580 The malloc(3) implementation embedded in libc now uses sources imported 581 as contrib/jemalloc. The most disruptive API change is to 582 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 583 delete it prior to installworld, and optionally re-create it using the 584 new format after rebooting. See malloc.conf(5) for details 585 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 586 NAMESPACE section). 587 58820120328: 589 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 590 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 591 now spelled mips. This is to aid compatibility with third-party 592 software that expects this naming scheme in uname(3). Little-endian 593 settings are unchanged. If you are updating a big-endian mips64 machine 594 from before this change, you may need to set MACHINE_ARCH=mips64 in 595 your environment before the new build system will recognize your machine. 596 59720120306: 598 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 599 platforms. 600 60120120229: 602 Now unix domain sockets behave "as expected" on nullfs(5). Previously 603 nullfs(5) did not pass through all behaviours to the underlying layer, 604 as a result if we bound to a socket on the lower layer we could connect 605 only to the lower path; if we bound to the upper layer we could connect 606 only to the upper path. The new behavior is one can connect to both the 607 lower and the upper paths regardless what layer path one binds to. 608 60920120211: 610 The getifaddrs upgrade path broken with 20111215 has been restored. 611 If you have upgraded in between 20111215 and 20120209 you need to 612 recompile libc again with your kernel. You still need to recompile 613 world to be able to configure CARP but this restriction already 614 comes from 20111215. 615 61620120114: 617 The set_rcvar() function has been removed from /etc/rc.subr. All 618 base and ports rc.d scripts have been updated, so if you have a 619 port installed with a script in /usr/local/etc/rc.d you can either 620 hand-edit the rcvar= line, or reinstall the port. 621 622 An easy way to handle the mass-update of /etc/rc.d: 623 rm /etc/rc.d/* && mergemaster -i 624 62520120109: 626 panic(9) now stops other CPUs in the SMP systems, disables interrupts 627 on the current CPU and prevents other threads from running. 628 This behavior can be reverted using the kern.stop_scheduler_on_panic 629 tunable/sysctl. 630 The new behavior can be incompatible with kern.sync_on_panic. 631 63220111215: 633 The carp(4) facility has been changed significantly. Configuration 634 of the CARP protocol via ifconfig(8) has changed, as well as format 635 of CARP events submitted to devd(8) has changed. See manual pages 636 for more information. The arpbalance feature of carp(4) is currently 637 not supported anymore. 638 639 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 640 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 641 need to be recompiled. 642 64320111122: 644 The acpi_wmi(4) status device /dev/wmistat has been renamed to 645 /dev/wmistat0. 646 64720111108: 648 The option VFS_ALLOW_NONMPSAFE option has been added in order to 649 explicitely support non-MPSAFE filesystems. 650 It is on by default for all supported platform at this present 651 time. 652 65320111101: 654 The broken amd(4) driver has been replaced with esp(4) in the amd64, 655 i386 and pc98 GENERIC kernel configuration files. 656 65720110930: 658 sysinstall has been removed 659 66020110923: 661 The stable/9 branch created in subversion. This corresponds to the 662 RELENG_9 branch in CVS. 663 66420110913: 665 This commit modifies vfs_register() so that it uses a hash 666 calculation to set vfc_typenum, which is enabled by default. 667 The first time a system is booted after this change, the 668 vfc_typenum values will change for all file systems. The 669 main effect of this is a change to the NFS server file handles 670 for file systems that use vfc_typenum in their fsid, such as ZFS. 671 It will, however, prevent vfc_typenum from changing when file 672 systems are loaded in a different order for subsequent reboots. 673 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 674 until you are ready to remount all NFS clients after a reboot. 675 67620110828: 677 Bump the shared library version numbers for libraries that 678 do not use symbol versioning, have changed the ABI compared 679 to stable/8 and which shared library version was not bumped. 680 Done as part of 9.0-RELEASE cycle. 681 68220110815: 683 During the merge of Capsicum features, the fget(9) KPI was modified. 684 This may require the rebuilding of out-of-tree device drivers -- 685 issues have been reported specifically with the nVidia device driver. 686 __FreeBSD_version is bumped to 900041. 687 688 Also, there is a period between 20110811 and 20110814 where the 689 special devices /dev/{stdin,stdout,stderr} did not work correctly. 690 Building world from a kernel during that window may not work. 691 69220110628: 693 The packet filter (pf) code has been updated to OpenBSD 4.5. 694 You need to update userland tools to be in sync with kernel. 695 This update breaks backward compatibility with earlier pfsync(4) 696 versions. Care must be taken when updating redundant firewall setups. 697 69820110608: 699 The following sysctls and tunables are retired on x86 platforms: 700 machdep.hlt_cpus 701 machdep.hlt_logical_cpus 702 The following sysctl is retired: 703 machdep.hyperthreading_allowed 704 The sysctls were supposed to provide a way to dynamically offline and 705 online selected CPUs on x86 platforms, but the implementation has not 706 been reliable especially with SCHED_ULE scheduler. 707 machdep.hyperthreading_allowed tunable is still available to ignore 708 hyperthreading CPUs at OS level. 709 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 710 where X is an APIC ID of a CPU. Be advised, though, that disabling 711 CPUs in non-uniform fashion will result in non-uniform topology and 712 may lead to sub-optimal system performance with SCHED_ULE, which is 713 a default scheduler. 714 71520110607: 716 cpumask_t type is retired and cpuset_t is used in order to describe 717 a mask of CPUs. 718 71920110531: 720 Changes to ifconfig(8) for dynamic address family detection mandate 721 that you are running a kernel of 20110525 or later. Make sure to 722 follow the update procedure to boot a new kernel before installing 723 world. 724 72520110513: 726 Support for sun4v architecture is officially dropped 727 72820110503: 729 Several KPI breaking changes have been committed to the mii(4) layer, 730 the PHY drivers and consequently some Ethernet drivers using mii(4). 731 This means that miibus.ko and the modules of the affected Ethernet 732 drivers need to be recompiled. 733 734 Note to kernel developers: Given that the OUI bit reversion problem 735 was fixed as part of these changes all mii(4) commits related to OUIs, 736 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 737 handling, no longer can be merged verbatim to stable/8 and previous 738 branches. 739 74020110430: 741 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 742 into their kernel configurations along with 'device pci'. 743 74420110427: 745 The default NFS client is now the new NFS client, so fstype "newnfs" 746 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 747 Although mounts via fstype "nfs" will usually work without userland 748 changes, it is recommended that the mount(8) and mount_nfs(8) 749 commands be rebuilt from sources and that a link to mount_nfs called 750 mount_oldnfs be created. The new client is compiled into the 751 kernel with "options NFSCL" and this is needed for diskless root 752 file systems. The GENERIC kernel configs have been changed to use 753 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 754 To use the regular/old client, you can "mount -t oldnfs ...". For 755 a diskless root file system, you must also include a line like: 756 757 vfs.root.mountfrom="oldnfs:" 758 759 in the boot/loader.conf on the root fs on the NFS server to make 760 a diskless root fs use the old client. 761 76220110424: 763 The GENERIC kernels for all architectures now default to the new 764 CAM-based ATA stack. It means that all legacy ATA drivers were 765 removed and replaced by respective CAM drivers. If you are using 766 ATA device names in /etc/fstab or other places, make sure to update 767 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 768 where 'Y's are the sequential numbers starting from zero for each type 769 in order of detection, unless configured otherwise with tunables, 770 see cam(4)). There will be symbolic links created in /dev/ to map 771 old adX devices to the respective adaY. They should provide basic 772 compatibility for file systems mounting in most cases, but they do 773 not support old user-level APIs and do not have respective providers 774 in GEOM. Consider using updated management tools with new device names. 775 776 It is possible to load devices ahci, ata, siis and mvs as modules, 777 but option ATA_CAM should remain in kernel configuration to make ata 778 module work as CAM driver supporting legacy ATA controllers. Device ata 779 still can be used in modular fashion (atacore + ...). Modules atadisk 780 and atapi* are not used and won't affect operation in ATA_CAM mode. 781 Note that to use CAM-based ATA kernel should include CAM devices 782 scbus, pass, da (or explicitly ada), cd and optionally others. All of 783 them are parts of the cam module. 784 785 ataraid(4) functionality is now supported by the RAID GEOM class. 786 To use it you can load geom_raid kernel module and use graid(8) tool 787 for management. Instead of /dev/arX device names, use /dev/raid/rX. 788 789 No kernel config options or code have been removed, so if a problem 790 arises, please report it and optionally revert to the old ATA stack. 791 In order to do it you can remove from the kernel config: 792 options ATA_CAM 793 device ahci 794 device mvs 795 device siis 796 , and instead add back: 797 device atadisk # ATA disk drives 798 device ataraid # ATA RAID drives 799 device atapicd # ATAPI CDROM drives 800 device atapifd # ATAPI floppy drives 801 device atapist # ATAPI tape drives 802 80320110423: 804 The default NFS server has been changed to the new server, which 805 was referred to as the experimental server. If you need to switch 806 back to the old NFS server, you must now put the "-o" option on 807 both the mountd and nfsd commands. This can be done using the 808 mountd_flags and nfs_server_flags rc.conf variables until an 809 update to the rc scripts is committed, which is coming soon. 810 81120110418: 812 The GNU Objective-C runtime library (libobjc), and other Objective-C 813 related components have been removed from the base system. If you 814 require an Objective-C library, please use one of the available ports. 815 81620110331: 817 ath(4) has been split into bus- and device- modules. if_ath contains 818 the HAL, the TX rate control and the network device code. if_ath_pci 819 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 820 contains the AHB glue. Users need to load both if_ath_pci and if_ath 821 in order to use ath on everything else. 822 823 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 824 need to load if_ath and if_ath_pci for ath(4) operation. 825 82620110314: 827 As part of the replacement of sysinstall, the process of building 828 release media has changed significantly. For details, please re-read 829 release(7), which has been updated to reflect the new build process. 830 83120110218: 832 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 833 is the last available version under GPLv2. It brings a number of new 834 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 835 4.1 and SSE 4.2), better support for powerpc64, a number of new 836 directives, and lots of other small improvements. See the ChangeLog 837 file in contrib/binutils for the full details. 838 83920110218: 840 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 841 compliant, and will now use half of hash for authentication. 842 This will break interoperability with all stacks (including all 843 actual FreeBSD versions) who implement 844 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 845 authentication). 846 The only workaround with such peers is to use another HMAC 847 algorithm for IPsec ("phase 2") authentication. 848 84920110207: 850 Remove the uio_yield prototype and symbol. This function has 851 been misnamed since it was introduced and should not be 852 globally exposed with this name. The equivalent functionality 853 is now available using kern_yield(curthread->td_user_pri). 854 The function remains undocumented. 855 85620110112: 857 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 858 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 859 for scalar sysctls is defined but disabled. Code that needs 860 UQUAD to pass the type checking that must compile on older 861 systems where the define is not present can check against 862 __FreeBSD_version >= 900030. 863 864 The system dialog(1) has been replaced with a new version previously 865 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 866 with the previous version, but the libdialog associated with it has 867 a largely incompatible API. As such, the original version of libdialog 868 will be kept temporarily as libodialog, until its base system consumers 869 are replaced or updated. Bump __FreeBSD_version to 900030. 870 87120110103: 872 If you are trying to run make universe on a -stable system, and you get 873 the following warning: 874 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 875 unknown. config(8) likely too old." 876 or something similar to it, then you must upgrade your -stable system 877 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 878 stable/8) or build the config from the latest stable/8 branch and 879 install it on your system. 880 881 Prior to this date, building a current universe on 8-stable system from 882 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 883 error in the first kernel build phase. A new config on those old 884 systems will fix that problem for older versions of -current. 885 88620101228: 887 The TCP stack has been modified to allow Khelp modules to interact with 888 it via helper hook points and store per-connection data in the TCP 889 control block. Bump __FreeBSD_version to 900029. User space tools that 890 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 891 be recompiled. 892 89320101114: 894 Generic IEEE 802.3 annex 31B full duplex flow control support has been 895 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 896 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 897 to take advantage of it instead of using custom implementations. This 898 means that these drivers now no longer unconditionally advertise 899 support for flow control but only do so if flow control is a selected 900 media option. This was implemented in the generic support that way in 901 order to allow flow control to be switched on and off via ifconfig(8) 902 with the PHY specific default to typically off in order to protect 903 from unwanted effects. Consequently, if you used flow control with 904 one of the above mentioned drivers you now need to explicitly enable 905 it, for example via: 906 ifconfig bge0 media auto mediaopt flowcontrol 907 908 Along with the above mentioned changes generic support for setting 909 1000baseT master mode also has been added and brgphy(4), ciphy(4), 910 e1000phy(4) as well as ip1000phy(4) have been converted to take 911 advantage of it. This means that these drivers now no longer take the 912 link0 parameter for selecting master mode but the master media option 913 has to be used instead, for example like in the following: 914 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 915 916 Selection of master mode now is also available with all other PHY 917 drivers supporting 1000baseT. 918 91920101111: 920 The TCP stack has received a significant update to add support for 921 modularised congestion control and generally improve the clarity of 922 congestion control decisions. Bump __FreeBSD_version to 900025. User 923 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 924 sockstat) need to be recompiled. 925 92620101002: 927 The man(1) utility has been replaced by a new version that no longer 928 uses /etc/manpath.config. Please consult man.conf(5) for how to 929 migrate local entries to the new format. 930 93120100928: 932 The copyright strings printed by login(1) and sshd(8) at the time of a 933 new connection have been removed to follow other operating systems and 934 upstream sshd. 935 93620100915: 937 A workaround for a fixed ld bug has been removed in kernel code, 938 so make sure that your system ld is built from sources after 939 revision 210245 from 2010-07-19 (r211583 if building head kernel 940 on stable/8, r211584 for stable/7; both from 2010-08-21). 941 A symptom of incorrect ld version is different addresses for 942 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 943 94420100913: 945 The $ipv6_prefer variable in rc.conf(5) has been split into 946 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 947 948 The $ip6addrctl_policy is a variable to choose a pre-defined 949 address selection policy set by ip6addrctl(8). A value 950 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 951 default is "AUTO". 952 953 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 954 flag (see an entry of 20090926) is set on an interface with no 955 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 956 security reason. If you want IPv6 link-local address on all 957 interfaces by default, set this to "YES". 958 959 The old ipv6_prefer="YES" is equivalent to 960 ipv6_activate_all_interfaces="YES" and 961 ip6addrctl_policy="ipv6_prefer". 962 96320100913: 964 DTrace has grown support for userland tracing. Due to this, DTrace is 965 now i386 and amd64 only. 966 dtruss(1) is now installed by default on those systems and a new 967 kernel module is needed for userland tracing: fasttrap. 968 No changes to your kernel config file are necessary to enable 969 userland tracing, but you might consider adding 'STRIP=' and 970 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 971 to have informative userland stack traces in DTrace (ustack). 972 97320100725: 974 The acpi_aiboost(4) driver has been removed in favor of the new 975 aibs(4) driver. You should update your kernel configuration file. 976 97720100722: 978 BSD grep has been imported to the base system and it is built by 979 default. It is completely BSD licensed, highly GNU-compatible, uses 980 less memory than its GNU counterpart and has a small codebase. 981 However, it is slower than its GNU counterpart, which is mostly 982 noticeable for larger searches, for smaller ones it is measurable 983 but not significant. The reason is complex, the most important factor 984 is that we lack a modern and efficient regex library and GNU 985 overcomes this by optimizing the searches internally. Future work 986 on improving the regex performance is planned, for the meantime, 987 users that need better performance, can build GNU grep instead by 988 setting the WITH_GNU_GREP knob. 989 99020100713: 991 Due to the import of powerpc64 support, all existing powerpc kernel 992 configuration files must be updated with a machine directive like this: 993 machine powerpc powerpc 994 995 In addition, an updated config(8) is required to build powerpc kernels 996 after this change. 997 99820100713: 999 A new version of ZFS (version 15) has been merged to -HEAD. 1000 This version uses a python library for the following subcommands: 1001 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 1002 For full functionality of these commands the following port must 1003 be installed: sysutils/py-zfs 1004 100520100429: 1006 'vm_page's are now hashed by physical address to an array of mutexes. 1007 Currently this is only used to serialize access to hold_count. Over 1008 time the page queue mutex will be peeled away. This changes the size 1009 of pmap on every architecture. And requires all callers of vm_page_hold 1010 and vm_page_unhold to be updated. 1011 101220100402: 1013 WITH_CTF can now be specified in src.conf (not recommended, there 1014 are some problems with static executables), make.conf (would also 1015 affect ports which do not use GNU make and do not override the 1016 compile targets) or in the kernel config (via "makeoptions 1017 WITH_CTF=yes"). 1018 When WITH_CTF was specified there before this was silently ignored, 1019 so make sure that WITH_CTF is not used in places which could lead 1020 to unwanted behavior. 1021 102220100311: 1023 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 1024 to allow 32-bit compatibility on non-x86 platforms. All kernel 1025 configurations on amd64 and ia64 platforms using these options must 1026 be modified accordingly. 1027 102820100113: 1029 The utmp user accounting database has been replaced with utmpx, 1030 the user accounting interface standardized by POSIX. 1031 Unfortunately the semantics of utmp and utmpx don't match, 1032 making it practically impossible to support both interfaces. 1033 The user accounting database is used by tools like finger(1), 1034 last(1), talk(1), w(1) and ac(8). 1035 1036 All applications in the base system use utmpx. This means only 1037 local binaries (e.g. from the ports tree) may still use these 1038 utmp database files. These applications must be rebuilt to make 1039 use of utmpx. 1040 1041 After the system has been upgraded, it is safe to remove the old 1042 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 1043 assuming their contents is of no importance anymore. Old wtmp 1044 databases can only be used by last(1) and ac(8) after they have 1045 been converted to the new format using wtmpcvt(1). 1046 104720100108: 1048 Introduce the kernel thread "deadlock resolver" (which can be enabled 1049 via the DEADLKRES option, see NOTES for more details) and the 1050 sleepq_type() function for sleepqueues. 1051 105220091202: 1053 The rc.firewall and rc.firewall6 were unified, and 1054 rc.firewall6 and rc.d/ip6fw were removed. 1055 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 1056 variables are obsoleted. Instead, the following new rc 1057 variables are added to rc.d/ipfw: 1058 1059 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 1060 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 1061 firewall_simple_onet_ipv6, firewall_trusted_ipv6 1062 1063 The meanings correspond to the relevant IPv4 variables. 1064 106520091125: 1066 8.0-RELEASE. 1067 106820091113: 1069 The default terminal emulation for syscons(4) has been changed 1070 from cons25 to xterm on all platforms except pc98. This means 1071 that the /etc/ttys file needs to be updated to ensure correct 1072 operation of applications on the console. 1073 1074 The terminal emulation style can be toggled per window by using 1075 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 1076 options can be used to change the compile-time default back to 1077 cons25. 1078 1079 To prevent graphical artifacts, make sure the TERM environment 1080 variable is set to match the terminal emulation that is being 1081 performed by syscons(4). 1082 108320091109: 1084 The layout of the structure ieee80211req_scan_result has changed. 1085 Applications that require wireless scan results (e.g. ifconfig(8)) 1086 from net80211 need to be recompiled. 1087 1088 Applications such as wpa_supplicant(8) may require a full world 1089 build without using NO_CLEAN in order to get synchronized with the 1090 new structure. 1091 109220091025: 1093 The iwn(4) driver has been updated to support the 5000 and 5150 series. 1094 There's one kernel module for each firmware. Adding "device iwnfw" 1095 to the kernel configuration file means including all three firmware 1096 images inside the kernel. If you want to include just the one for 1097 your wireless card, use the devices iwn4965fw, iwn5000fw or 1098 iwn5150fw. 1099 110020090926: 1101 The rc.d/network_ipv6, IPv6 configuration script has been integrated 1102 into rc.d/netif. The changes are the following: 1103 1104 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 1105 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 1106 Note that both variables need the "inet6" keyword at the head. 1107 1108 Do not set $ipv6_network_interfaces manually if you do not 1109 understand what you are doing. It is not needed in most cases. 1110 1111 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 1112 they are obsolete. 1113 1114 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 1115 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 1116 1117 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 1118 all configured interfaces have "inet6 accept_rtadv" in the 1119 $ifconfig_IF_ipv6. These are for backward compatibility. 1120 1121 3. A new variable $ipv6_prefer has been added. If NO, IPv6 1122 functionality of interfaces with no corresponding 1123 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 1124 and the default address selection policy of ip6addrctl(8) 1125 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 1126 Note that if you want to configure IPv6 functionality on the 1127 disabled interfaces after boot, first you need to clear the flag by 1128 using ifconfig(8) like: 1129 1130 ifconfig em0 inet6 -ifdisabled 1131 1132 If YES, the default address selection policy is set as 1133 IPv6-preferred. 1134 1135 The default value of $ipv6_prefer is NO. 1136 1137 4. If your system need to receive Router Advertisement messages, 1138 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1139 scripts automatically invoke rtsol(8) when the interface becomes 1140 UP. The Router Advertisement messages are used for SLAAC 1141 (State-Less Address AutoConfiguration). 1142 114320090922: 1144 802.11s D3.03 support was committed. This is incompatible with the 1145 previous code, which was based on D3.0. 1146 114720090912: 1148 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1149 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1150 control whether accepting Router Advertisement messages or not. 1151 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1152 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1153 The ifconfig(8) utility now supports these flags. 1154 115520090910: 1156 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1157 mount(8) and -a option for df(1) to see them. 1158 115920090825: 1160 The old tunable hw.bus.devctl_disable has been superseded by 1161 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1162 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1163 is 1000. 1164 116520090813: 1166 Remove the option STOP_NMI. The default action is now to use NMI only 1167 for KDB via the newly introduced function stop_cpus_hard() and 1168 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1169 117020090803: 1171 The stable/8 branch created in subversion. This corresponds to the 1172 RELENG_8 branch in CVS. 1173 117420090719: 1175 Bump the shared library version numbers for all libraries that do not 1176 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1177 __FreeBSD_version to 800105. 1178 117920090714: 1180 Due to changes in the implementation of virtual network stack support, 1181 all network-related kernel modules must be recompiled. As this change 1182 breaks the ABI, bump __FreeBSD_version to 800104. 1183 118420090713: 1185 The TOE interface to the TCP syncache has been modified to remove 1186 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1187 The cxgb driver is the only TOE consumer affected by this change, and 1188 needs to be recompiled along with the kernel. As this change breaks 1189 the ABI, bump __FreeBSD_version to 800103. 1190 119120090712: 1192 Padding has been added to struct tcpcb, sackhint and tcpstat in 1193 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1194 maintaining the ABI. However, this change breaks the ABI, so bump 1195 __FreeBSD_version to 800102. User space tools that rely on the size of 1196 any of these structs (e.g. sockstat) need to be recompiled. 1197 119820090630: 1199 The NFS_LEGACYRPC option has been removed along with the old kernel 1200 RPC implementation that this option selected. Kernel configurations 1201 may need to be adjusted. 1202 120320090629: 1204 The network interface device nodes at /dev/net/<interface> have been 1205 removed. All ioctl operations can be performed the normal way using 1206 routing sockets. The kqueue functionality can generally be replaced 1207 with routing sockets. 1208 120920090628: 1210 The documentation from the FreeBSD Documentation Project (Handbook, 1211 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1212 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1213 121420090624: 1215 The ABI of various structures related to the SYSV IPC API have been 1216 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1217 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1218 800100. 1219 122020090622: 1221 Layout of struct vnet has changed as routing related variables were 1222 moved to their own Vimage module. Modules need to be recompiled. Bump 1223 __FreeBSD_version to 800099. 1224 122520090619: 1226 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1227 respectively. As long as no more than 16 groups per process are used, 1228 no changes should be visible. When more than 16 groups are used, old 1229 binaries may fail if they call getgroups() or getgrouplist() with 1230 statically sized storage. Recompiling will work around this, but 1231 applications should be modified to use dynamically allocated storage 1232 for group arrays as POSIX.1-2008 does not cap an implementation's 1233 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1234 1235 NFS and portalfs mounts may also be affected as the list of groups is 1236 truncated to 16. Users of NFS who use more than 16 groups, should 1237 take care that negative group permissions are not used on the exported 1238 file systems as they will not be reliable unless a GSSAPI based 1239 authentication method is used. 1240 124120090616: 1242 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1243 option compiles in the support for adaptive spinning for lockmgrs 1244 which want to enable it. The lockinit() function now accepts the flag 1245 LK_ADAPTIVE in order to make the lock object subject to adaptive 1246 spinning when both held in write and read mode. 1247 124820090613: 1249 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1250 changed. User applications that use this ioctl need to be rebuilt. 1251 125220090611: 1253 The layout of struct thread has changed. Kernel and modules need to 1254 be rebuilt. 1255 125620090608: 1257 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1258 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1259 126020090602: 1261 window(1) has been removed from the base system. It can now be 1262 installed from ports. The port is called misc/window. 1263 126420090601: 1265 The way we are storing and accessing `routing table' entries has 1266 changed. Programs reading the FIB, like netstat, need to be 1267 re-compiled. 1268 126920090601: 1270 A new netisr implementation has been added for FreeBSD 8. Network 1271 file system modules, such as igmp, ipdivert, and others, should be 1272 rebuilt. 1273 Bump __FreeBSD_version to 800096. 1274 127520090530: 1276 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1277 more valid. 1278 127920090530: 1280 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1281 Bump __FreeBSD_version to 800094. 1282 128320090529: 1284 Add mnt_xflag field to 'struct mount'. File system modules need to be 1285 rebuilt. 1286 Bump __FreeBSD_version to 800093. 1287 128820090528: 1289 The compiling option ADAPTIVE_SX has been retired while it has been 1290 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1291 The KPI for sx_init_flags() changes as accepting flags: 1292 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1293 been introduced in order to handle the reversed logic. 1294 Bump __FreeBSD_version to 800092. 1295 129620090527: 1297 Add support for hierarchical jails. Remove global securelevel. 1298 Bump __FreeBSD_version to 800091. 1299 130020090523: 1301 The layout of struct vnet_net has changed, therefore modules 1302 need to be rebuilt. 1303 Bump __FreeBSD_version to 800090. 1304 130520090523: 1306 The newly imported zic(8) produces a new format in the output. Please 1307 run tzsetup(8) to install the newly created data to /etc/localtime. 1308 130920090520: 1310 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1311 hw.usb.* and is now consistent again with previous releases. 1312 131320090520: 1314 802.11 monitor mode support was revised and driver api's were changed. 1315 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1316 of DLT_IEEE802_11. No user-visible data structures were changed but 1317 applications that use DLT_IEEE802_11 may require changes. 1318 Bump __FreeBSD_version to 800088. 1319 132020090430: 1321 The layout of the following structs has changed: sysctl_oid, 1322 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1323 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1324 panics may be experienced. World rebuild is required for 1325 correctly checking networking state from userland. 1326 Bump __FreeBSD_version to 800085. 1327 132820090429: 1329 MLDv2 and Source-Specific Multicast (SSM) have been merged 1330 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1331 The implementation of SSM within FreeBSD's IPv6 stack closely 1332 follows the IPv4 implementation. 1333 1334 For kernel developers: 1335 1336 * The most important changes are that the ip6_output() and 1337 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1338 and this lock has been downgraded to a non-recursive mutex. 1339 1340 * As with the changes to the IPv4 stack to support SSM, filtering 1341 of inbound multicast traffic must now be performed by transport 1342 protocols within the IPv6 stack. This does not apply to TCP and 1343 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1344 1345 * The KPIs used by IPv6 multicast are similar to those used by 1346 the IPv4 stack, with the following differences: 1347 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1348 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1349 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1350 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1351 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1352 for MLDv1 have an additional 'timer' argument which is used to 1353 jitter the initial membership report for the solicited-node 1354 multicast membership on-link. 1355 * This is not strictly needed for MLDv2, which already jitters 1356 its report transmissions. However, the 'timer' argument is 1357 preserved in case MLDv1 is active on the interface. 1358 1359 * The KAME linked-list based IPv6 membership implementation has 1360 been refactored to use a vector similar to that used by the IPv4 1361 stack. 1362 Code which maintains a list of its own multicast memberships 1363 internally, e.g. carp, has been updated to reflect the new 1364 semantics. 1365 1366 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1367 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1368 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1369 implementation constraint which needs to be addressed in HEAD. 1370 1371 For application developers: 1372 1373 * The changes are broadly similar to those made for the IPv4 1374 stack. 1375 1376 * The use of IPv4 and IPv6 multicast socket options on the same 1377 socket, using mapped addresses, HAS NOT been tested or supported. 1378 1379 * There are a number of issues with the implementation of various 1380 IPv6 multicast APIs which need to be resolved in the API surface 1381 before the implementation is fully compatible with KAME userland 1382 use, and these are mostly to do with interface index treatment. 1383 1384 * The literature available discusses the use of either the delta / ASM 1385 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1386 using setsourcefilter(3)/getsourcefilter(3). For more information 1387 please refer to RFC 3768, 'Socket Interface Extensions for 1388 Multicast Source Filters'. 1389 1390 * Applications which use the published RFC 3678 APIs should be fine. 1391 1392 For systems administrators: 1393 1394 * The mtest(8) utility has been refactored to support IPv6, in 1395 addition to IPv4. Interface addresses are no longer accepted 1396 as arguments, their names must be used instead. The utility 1397 will map the interface name to its first IPv4 address as 1398 returned by getifaddrs(3). 1399 1400 * The ifmcstat(8) utility has also been updated to print the MLDv2 1401 endpoint state and source filter lists via sysctl(3). 1402 1403 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1404 loopback of IPv6 multicast datagrams by default; it defaults to 1 1405 to preserve the existing behaviour. Disabling multicast loopback is 1406 recommended for optimal system performance. 1407 1408 * The IPv6 MROUTING code has been changed to examine this sysctl 1409 instead of attempting to perform a group lookup before looping 1410 back forwarded datagrams. 1411 1412 Bump __FreeBSD_version to 800084. 1413 141420090422: 1415 Implement low-level Bluetooth HCI API. 1416 Bump __FreeBSD_version to 800083. 1417 141820090419: 1419 The layout of struct malloc_type, used by modules to register new 1420 memory allocation types, has changed. Most modules will need to 1421 be rebuilt or panics may be experienced. 1422 Bump __FreeBSD_version to 800081. 1423 142420090415: 1425 Anticipate overflowing inp_flags - add inp_flags2. 1426 This changes most offsets in inpcb, so checking v4 connection 1427 state will require a world rebuild. 1428 Bump __FreeBSD_version to 800080. 1429 143020090415: 1431 Add an llentry to struct route and struct route_in6. Modules 1432 embedding a struct route will need to be recompiled. 1433 Bump __FreeBSD_version to 800079. 1434 143520090414: 1436 The size of rt_metrics_lite and by extension rtentry has changed. 1437 Networking administration apps will need to be recompiled. 1438 The route command now supports show as an alias for get, weighting 1439 of routes, sticky and nostick flags to alter the behavior of stateful 1440 load balancing. 1441 Bump __FreeBSD_version to 800078. 1442 144320090408: 1444 Do not use Giant for kbdmux(4) locking. This is wrong and 1445 apparently causing more problems than it solves. This will 1446 re-open the issue where interrupt handlers may race with 1447 kbdmux(4) in polling mode. Typical symptoms include (but 1448 not limited to) duplicated and/or missing characters when 1449 low level console functions (such as gets) are used while 1450 interrupts are enabled (for example geli password prompt, 1451 mountroot prompt etc.). Disabling kbdmux(4) may help. 1452 145320090407: 1454 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1455 kernel modules referencing any of the above need to be recompiled. 1456 Bump __FreeBSD_version to 800075. 1457 145820090320: 1459 GEOM_PART has become the default partition slicer for storage devices, 1460 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1461 introduces some changes: 1462 1463 MSDOS/EBR: the devices created from MSDOS extended partition entries 1464 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1465 to devices with offset-based names. fstabs may need to be modified. 1466 1467 BSD: the "geometry does not match label" warning is harmless in most 1468 cases but it points to problems in file system misalignment with 1469 disk geometry. The "c" partition is now implicit, covers the whole 1470 top-level drive and cannot be (mis)used by users. 1471 1472 General: Kernel dumps are now not allowed to be written to devices 1473 whose partition types indicate they are meant to be used for file 1474 systems (or, in case of MSDOS partitions, as something else than 1475 the "386BSD" type). 1476 1477 Most of these changes date approximately from 200812. 1478 147920090319: 1480 The uscanner(4) driver has been removed from the kernel. This follows 1481 Linux removing theirs in 2.6 and making libusb the default interface 1482 (supported by sane). 1483 148420090319: 1485 The multicast forwarding code has been cleaned up. netstat(1) 1486 only relies on KVM now for printing bandwidth upcall meters. 1487 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1488 ip6_mroute_mod respectively. The config(5) options for statically 1489 compiling this code remain the same, i.e. 'options MROUTING'. 1490 149120090315: 1492 Support for the IFF_NEEDSGIANT network interface flag has been 1493 removed, which means that non-MPSAFE network device drivers are no 1494 longer supported. In particular, if_ar, if_sr, and network device 1495 drivers from the old (legacy) USB stack can no longer be built or 1496 used. 1497 149820090313: 1499 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1500 a bunch of new language catalog files have also been added. 1501 This means that some common libc messages are now localized and 1502 they depend on the LC_MESSAGES environmental variable. 1503 150420090313: 1505 The k8temp(4) driver has been renamed to amdtemp(4) since 1506 support for Family 10 and Family 11 CPU families was added. 1507 150820090309: 1509 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1510 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1511 1512 For kernel developers, the most important changes are that the 1513 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1514 and this lock has been downgraded to a non-recursive mutex. 1515 1516 Transport protocols (UDP, Raw IP) are now responsible for filtering 1517 inbound multicast traffic according to group membership and source 1518 filters. The imo_multicast_filter() KPI exists for this purpose. 1519 Transports which do not use multicast (SCTP, TCP) already reject 1520 multicast by default. Forwarding and receive performance may improve 1521 as a mutex acquisition is no longer needed in the ip_input() 1522 low-level input path. in_addmulti() and in_delmulti() are shimmed 1523 to new KPIs which exist to support SSM in-kernel. 1524 1525 For application developers, it is recommended that loopback of 1526 multicast datagrams be disabled for best performance, as this 1527 will still cause the lock to be taken for each looped-back 1528 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1529 be tuned to 0 to disable loopback by default; it defaults to 1 1530 to preserve the existing behaviour. 1531 1532 For systems administrators, to obtain best performance with 1533 multicast reception and multiple groups, it is always recommended 1534 that a card with a suitably precise hash filter is used. Hash 1535 collisions will still result in the lock being taken within the 1536 transport protocol input path to check group membership. 1537 1538 If deploying FreeBSD in an environment with IGMP snooping switches, 1539 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1540 enabled; this forces 224.0.0.0/24 group membership to be announced 1541 via IGMP. 1542 1543 The size of 'struct igmpstat' has changed; netstat needs to be 1544 recompiled to reflect this. 1545 Bump __FreeBSD_version to 800070. 1546 154720090309: 1548 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1549 updated to use it. This requires a buildworld/installworld in order to 1550 update the library and dependencies (usbconfig, etc). Its advisable to 1551 rebuild all ports which uses libusb. More specific directions are given 1552 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1553 libusb are no longer required and can be removed. 1554 155520090302: 1556 A workaround is committed to allow the creation of System V shared 1557 memory segment of size > 2 GB on the 64-bit architectures. 1558 Due to a limitation of the existing ABI, the shm_segsz member 1559 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1560 wrong for large segments. Note that limits must be explicitly 1561 raised to allow such segments to be created. 1562 156320090301: 1564 The layout of struct ifnet has changed, requiring a rebuild of all 1565 network device driver modules. 1566 156720090227: 1568 The /dev handling for the new USB stack has changed, a 1569 buildworld/installworld is required for libusb20. 1570 157120090223: 1572 The new USB2 stack has now been permanently moved in and all kernel and 1573 module names reverted to their previous values (eg, usb, ehci, ohci, 1574 ums, ...). The old usb stack can be compiled in by prefixing the name 1575 with the letter 'o', the old usb modules have been removed. 1576 Updating entry 20090216 for xorg and 20090215 for libmap may still 1577 apply. 1578 157920090217: 1580 The rc.conf(5) option if_up_delay has been renamed to 1581 defaultroute_delay to better reflect its purpose. If you have 1582 customized this setting in /etc/rc.conf you need to update it to 1583 use the new name. 1584 158520090216: 1586 xorg 7.4 wants to configure its input devices via hald which does not 1587 yet work with USB2. If the keyboard/mouse does not work in xorg then 1588 add 1589 Option "AllowEmptyInput" "off" 1590 to your ServerLayout section. This will cause X to use the configured 1591 kbd and mouse sections from your xorg.conf. 1592 159320090215: 1594 The GENERIC kernels for all architectures now default to the new USB2 1595 stack. No kernel config options or code have been removed so if a 1596 problem arises please report it and optionally revert to the old USB 1597 stack. If you are loading USB kernel modules or have a custom kernel 1598 that includes GENERIC then ensure that usb names are also changed over, 1599 eg uftdi -> usb2_serial_ftdi. 1600 1601 Older programs linked against the ports libusb 0.1 need to be 1602 redirected to the new stack's libusb20. /etc/libmap.conf can 1603 be used for this: 1604 # Map old usb library to new one for usb2 stack 1605 libusb-0.1.so.8 libusb20.so.1 1606 160720090209: 1608 All USB ethernet devices now attach as interfaces under the name ueN 1609 (eg. ue0). This is to provide a predictable name as vendors often 1610 change usb chipsets in a product without notice. 1611 161220090203: 1613 The ichsmb(4) driver has been changed to require SMBus slave 1614 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1615 All of the other SMBus controller drivers require left-justified 1616 slave addresses, so this change makes all the drivers provide the 1617 same interface. 1618 161920090201: 1620 INET6 statistics (struct ip6stat) was updated. 1621 netstat(1) needs to be recompiled. 1622 162320090119: 1624 NTFS has been removed from GENERIC kernel on amd64 to match 1625 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1626 will load ntfs.ko module automatically when NTFS support is 1627 actually needed, unless ntfs.ko is not installed or security 1628 level prohibits loading kernel modules. If either is the case, 1629 "options NTFS" has to be added into kernel config. 1630 163120090115: 1632 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1633 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1634 800061. User space tools that rely on the size of struct tcpcb in 1635 tcp_var.h (e.g. sockstat) need to be recompiled. 1636 163720081225: 1638 ng_tty(4) module updated to match the new TTY subsystem. 1639 Due to API change, user-level applications must be updated. 1640 New API support added to mpd5 CVS and expected to be present 1641 in next mpd5.3 release. 1642 164320081219: 1644 With __FreeBSD_version 800060 the makefs tool is part of 1645 the base system (it was a port). 1646 164720081216: 1648 The afdata and ifnet locks have been changed from mutexes to 1649 rwlocks, network modules will need to be re-compiled. 1650 165120081214: 1652 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1653 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1654 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1655 architecture and 40 bytes on 64-bit architecture. The userland 1656 applications "arp" and "ndp" have been updated accordingly. 1657 The output from "netstat -r" shows only routing entries and 1658 none of the L2 information. 1659 166020081130: 1661 __FreeBSD_version 800057 marks the switchover from the 1662 binary ath hal to source code. Users must add the line: 1663 1664 options AH_SUPPORT_AR5416 1665 1666 to their kernel config files when specifying: 1667 1668 device ath_hal 1669 1670 The ath_hal module no longer exists; the code is now compiled 1671 together with the driver in the ath module. It is now 1672 possible to tailor chip support (i.e. reduce the set of chips 1673 and thereby the code size); consult ath_hal(4) for details. 1674 167520081121: 1676 __FreeBSD_version 800054 adds memory barriers to 1677 <machine/atomic.h>, new interfaces to ifnet to facilitate 1678 multiple hardware transmit queues for cards that support 1679 them, and a lock-less ring-buffer implementation to 1680 enable drivers to more efficiently manage queueing of 1681 packets. 1682 168320081117: 1684 A new version of ZFS (version 13) has been merged to -HEAD. 1685 This version has zpool attribute "listsnapshots" off by 1686 default, which means "zfs list" does not show snapshots, 1687 and is the same as Solaris behavior. 1688 168920081028: 1690 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1691 169220081009: 1693 The uhci, ohci, ehci and slhci USB Host controller drivers have 1694 been put into separate modules. If you load the usb module 1695 separately through loader.conf you will need to load the 1696 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1697 controller add the following to loader.conf: 1698 1699 uhci_load="YES" 1700 ehci_load="YES" 1701 170220081009: 1703 The ABI used by the PMC toolset has changed. Please keep 1704 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1705 sync. 1706 170720081009: 1708 atapci kernel module now includes only generic PCI ATA 1709 driver. AHCI driver moved to ataahci kernel module. 1710 All vendor-specific code moved into separate kernel modules: 1711 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1712 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1713 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1714 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1715 171620080820: 1717 The TTY subsystem of the kernel has been replaced by a new 1718 implementation, which provides better scalability and an 1719 improved driver model. Most common drivers have been migrated to 1720 the new TTY subsystem, while others have not. The following 1721 drivers have not yet been ported to the new TTY layer: 1722 1723 PCI/ISA: 1724 cy, digi, rc, rp, sio 1725 1726 USB: 1727 ubser, ucycom 1728 1729 Line disciplines: 1730 ng_h4, ng_tty, ppp, sl, snp 1731 1732 Adding these drivers to your kernel configuration file shall 1733 cause compilation to fail. 1734 173520080818: 1736 ntpd has been upgraded to 4.2.4p5. 1737 173820080801: 1739 OpenSSH has been upgraded to 5.1p1. 1740 1741 For many years, FreeBSD's version of OpenSSH preferred DSA 1742 over RSA for host and user authentication keys. With this 1743 upgrade, we've switched to the vendor's default of RSA over 1744 DSA. This may cause upgraded clients to warn about unknown 1745 host keys even for previously known hosts. Users should 1746 follow the usual procedure for verifying host keys before 1747 accepting the RSA key. 1748 1749 This can be circumvented by setting the "HostKeyAlgorithms" 1750 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1751 command line. 1752 1753 Please note that the sequence of keys offered for 1754 authentication has been changed as well. You may want to 1755 specify IdentityFile in a different order to revert this 1756 behavior. 1757 175820080713: 1759 The sio(4) driver has been removed from the i386 and amd64 1760 kernel configuration files. This means uart(4) is now the 1761 default serial port driver on those platforms as well. 1762 1763 To prevent collisions with the sio(4) driver, the uart(4) driver 1764 uses different names for its device nodes. This means the 1765 onboard serial port will now most likely be called "ttyu0" 1766 instead of "ttyd0". You may need to reconfigure applications to 1767 use the new device names. 1768 1769 When using the serial port as a boot console, be sure to update 1770 /boot/device.hints and /etc/ttys before booting the new kernel. 1771 If you forget to do so, you can still manually specify the hints 1772 at the loader prompt: 1773 1774 set hint.uart.0.at="isa" 1775 set hint.uart.0.port="0x3F8" 1776 set hint.uart.0.flags="0x10" 1777 set hint.uart.0.irq="4" 1778 boot -s 1779 178020080609: 1781 The gpt(8) utility has been removed. Use gpart(8) to partition 1782 disks instead. 1783 178420080603: 1785 The version that Linuxulator emulates was changed from 2.4.2 1786 to 2.6.16. If you experience any problems with Linux binaries 1787 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1788 if it fixes the problem contact emulation mailing list. 1789 179020080525: 1791 ISDN4BSD (I4B) was removed from the src tree. You may need to 1792 update a your kernel configuration and remove relevant entries. 1793 179420080509: 1795 I have checked in code to support multiple routing tables. 1796 See the man pages setfib(1) and setfib(2). 1797 This is a hopefully backwards compatible version, 1798 but to make use of it you need to compile your kernel 1799 with options ROUTETABLES=2 (or more up to 16). 1800 180120080420: 1802 The 802.11 wireless support was redone to enable multi-bss 1803 operation on devices that are capable. The underlying device 1804 is no longer used directly but instead wlanX devices are 1805 cloned with ifconfig. This requires changes to rc.conf files. 1806 For example, change: 1807 ifconfig_ath0="WPA DHCP" 1808 to 1809 wlans_ath0=wlan0 1810 ifconfig_wlan0="WPA DHCP" 1811 see rc.conf(5) for more details. In addition, mergemaster of 1812 /etc/rc.d is highly recommended. Simultaneous update of userland 1813 and kernel wouldn't hurt either. 1814 1815 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1816 modules were merged into the base wlan module. All references 1817 to these modules (e.g. in kernel config files) must be removed. 1818 181920080408: 1820 psm(4) has gained write(2) support in native operation level. 1821 Arbitrary commands can be written to /dev/psm%d and status can 1822 be read back from it. Therefore, an application is responsible 1823 for status validation and error recovery. It is a no-op in 1824 other operation levels. 1825 182620080312: 1827 Support for KSE threading has been removed from the kernel. To 1828 run legacy applications linked against KSE libmap.conf may 1829 be used. The following libmap.conf may be used to ensure 1830 compatibility with any prior release: 1831 1832 libpthread.so.1 libthr.so.1 1833 libpthread.so.2 libthr.so.2 1834 libkse.so.3 libthr.so.3 1835 183620080301: 1837 The layout of struct vmspace has changed. This affects libkvm 1838 and any executables that link against libkvm and use the 1839 kvm_getprocs() function. In particular, but not exclusively, 1840 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1841 The effects are minimal, but it's advisable to upgrade world 1842 nonetheless. 1843 184420080229: 1845 The latest em driver no longer has support in it for the 1846 82575 adapter, this is now moved to the igb driver. The 1847 split was done to make new features that are incompatible 1848 with older hardware easier to do. 1849 185020080220: 1851 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1852 likewise the kernel option is now GEOM_LINUX_LVM. 1853 185420080211: 1855 The default NFS mount mode has changed from UDP to TCP for 1856 increased reliability. If you rely on (insecurely) NFS 1857 mounting across a firewall you may need to update your 1858 firewall rules. 1859 186020080208: 1861 Belatedly note the addition of m_collapse for compacting 1862 mbuf chains. 1863 186420080126: 1865 The fts(3) structures have been changed to use adequate 1866 integer types for their members and so to be able to cope 1867 with huge file trees. The old fts(3) ABI is preserved 1868 through symbol versioning in libc, so third-party binaries 1869 using fts(3) should still work, although they will not take 1870 advantage of the extended types. At the same time, some 1871 third-party software might fail to build after this change 1872 due to unportable assumptions made in its source code about 1873 fts(3) structure members. Such software should be fixed 1874 by its vendor or, in the worst case, in the ports tree. 1875 FreeBSD_version 800015 marks this change for the unlikely 1876 case that a portable fix is impossible. 1877 187820080123: 1879 To upgrade to -current after this date, you must be running 1880 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1881 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1882 188320071128: 1884 The ADAPTIVE_GIANT kernel option has been retired because its 1885 functionality is the default now. 1886 188720071118: 1888 The AT keyboard emulation of sunkbd(4) has been turned on 1889 by default. In order to make the special symbols of the Sun 1890 keyboards driven by sunkbd(4) work under X these now have 1891 to be configured the same way as Sun USB keyboards driven 1892 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1893 1894 Option "XkbLayout" "us" 1895 Option "XkbRules" "xorg" 1896 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1897 189820071024: 1899 It has been decided that it is desirable to provide ABI 1900 backwards compatibility to the FreeBSD 4/5/6 versions of the 1901 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1902 broken with the introduction of PCI domain support (see the 1903 20070930 entry). Unfortunately, this required the ABI of 1904 PCIOCGETCONF to be broken again in order to be able to 1905 provide backwards compatibility to the old version of that 1906 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1907 again. As for prominent ports this affects neither pciutils 1908 nor xorg-server this time, the hal port needs to be rebuilt 1909 however. 1910 191120071020: 1912 The misnamed kthread_create() and friends have been renamed 1913 to kproc_create() etc. Many of the callers already 1914 used kproc_start().. 1915 I will return kthread_create() and friends in a while 1916 with implementations that actually create threads, not procs. 1917 Renaming corresponds with version 800002. 1918 191920071010: 1920 RELENG_7 branched. 1921 1922COMMON ITEMS: 1923 1924 General Notes 1925 ------------- 1926 Avoid using make -j when upgrading. While generally safe, there are 1927 sometimes problems using -j to upgrade. If your upgrade fails with 1928 -j, please try again without -j. From time to time in the past there 1929 have been problems using -j with buildworld and/or installworld. This 1930 is especially true when upgrading between "distant" versions (eg one 1931 that cross a major release boundary or several minor releases, or when 1932 several months have passed on the -current branch). 1933 1934 Sometimes, obscure build problems are the result of environment 1935 poisoning. This can happen because the make utility reads its 1936 environment when searching for values for global variables. To run 1937 your build attempts in an "environmental clean room", prefix all make 1938 commands with 'env -i '. See the env(1) manual page for more details. 1939 1940 When upgrading from one major version to another it is generally best 1941 to upgrade to the latest code in the currently installed branch first, 1942 then do an upgrade to the new branch. This is the best-tested upgrade 1943 path, and has the highest probability of being successful. Please try 1944 this approach before reporting problems with a major version upgrade. 1945 1946 When upgrading a live system, having a root shell around before 1947 installing anything can help undo problems. Not having a root shell 1948 around can lead to problems if pam has changed too much from your 1949 starting point to allow continued authentication after the upgrade. 1950 1951 ZFS notes 1952 --------- 1953 When upgrading the boot ZFS pool to a new version, always follow 1954 these two steps: 1955 1956 1.) recompile and reinstall the ZFS boot loader and boot block 1957 (this is part of "make buildworld" and "make installworld") 1958 1959 2.) update the ZFS boot block on your boot drive 1960 1961 The following example updates the ZFS boot block on the first 1962 partition (freebsd-boot) of a GPT partitioned drive ad0: 1963 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 1964 1965 Non-boot pools do not need these updates. 1966 1967 To build a kernel 1968 ----------------- 1969 If you are updating from a prior version of FreeBSD (even one just 1970 a few days old), you should follow this procedure. It is the most 1971 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1972 1973 make kernel-toolchain 1974 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1975 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1976 1977 To test a kernel once 1978 --------------------- 1979 If you just want to boot a kernel once (because you are not sure 1980 if it works, or if you want to boot a known bad kernel to provide 1981 debugging information) run 1982 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1983 nextboot -k testkernel 1984 1985 To just build a kernel when you know that it won't mess you up 1986 -------------------------------------------------------------- 1987 This assumes you are already running a CURRENT system. Replace 1988 ${arch} with the architecture of your machine (e.g. "i386", 1989 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1990 1991 cd src/sys/${arch}/conf 1992 config KERNEL_NAME_HERE 1993 cd ../compile/KERNEL_NAME_HERE 1994 make depend 1995 make 1996 make install 1997 1998 If this fails, go to the "To build a kernel" section. 1999 2000 To rebuild everything and install it on the current system. 2001 ----------------------------------------------------------- 2002 # Note: sometimes if you are running current you gotta do more than 2003 # is listed here if you are upgrading from a really old current. 2004 2005 <make sure you have good level 0 dumps> 2006 make buildworld 2007 make kernel KERNCONF=YOUR_KERNEL_HERE 2008 [1] 2009 <reboot in single user> [3] 2010 mergemaster -p [5] 2011 make installworld 2012 mergemaster -i [4] 2013 make delete-old [6] 2014 <reboot> 2015 2016 To cross-install current onto a separate partition 2017 -------------------------------------------------- 2018 # In this approach we use a separate partition to hold 2019 # current's root, 'usr', and 'var' directories. A partition 2020 # holding "/", "/usr" and "/var" should be about 2GB in 2021 # size. 2022 2023 <make sure you have good level 0 dumps> 2024 <boot into -stable> 2025 make buildworld 2026 make buildkernel KERNCONF=YOUR_KERNEL_HERE 2027 <maybe newfs current's root partition> 2028 <mount current's root partition on directory ${CURRENT_ROOT}> 2029 make installworld DESTDIR=${CURRENT_ROOT} 2030 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 2031 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 2032 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 2033 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 2034 <reboot into current> 2035 <do a "native" rebuild/install as described in the previous section> 2036 <maybe install compatibility libraries from ports/misc/compat*> 2037 <reboot> 2038 2039 2040 To upgrade in-place from stable to current 2041 ---------------------------------------------- 2042 <make sure you have good level 0 dumps> 2043 make buildworld [9] 2044 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 2045 [1] 2046 <reboot in single user> [3] 2047 mergemaster -p [5] 2048 make installworld 2049 mergemaster -i [4] 2050 make delete-old [6] 2051 <reboot> 2052 2053 Make sure that you've read the UPDATING file to understand the 2054 tweaks to various things you need. At this point in the life 2055 cycle of current, things change often and you are on your own 2056 to cope. The defaults can also change, so please read ALL of 2057 the UPDATING entries. 2058 2059 Also, if you are tracking -current, you must be subscribed to 2060 freebsd-current@freebsd.org. Make sure that before you update 2061 your sources that you have read and understood all the recent 2062 messages there. If in doubt, please track -stable which has 2063 much fewer pitfalls. 2064 2065 [1] If you have third party modules, such as vmware, you 2066 should disable them at this point so they don't crash your 2067 system on reboot. 2068 2069 [3] From the bootblocks, boot -s, and then do 2070 fsck -p 2071 mount -u / 2072 mount -a 2073 cd src 2074 adjkerntz -i # if CMOS is wall time 2075 Also, when doing a major release upgrade, it is required that 2076 you boot into single user mode to do the installworld. 2077 2078 [4] Note: This step is non-optional. Failure to do this step 2079 can result in a significant reduction in the functionality of the 2080 system. Attempting to do it by hand is not recommended and those 2081 that pursue this avenue should read this file carefully, as well 2082 as the archives of freebsd-current and freebsd-hackers mailing lists 2083 for potential gotchas. The -U option is also useful to consider. 2084 See mergemaster(8) for more information. 2085 2086 [5] Usually this step is a noop. However, from time to time 2087 you may need to do this if you get unknown user in the following 2088 step. It never hurts to do it all the time. You may need to 2089 install a new mergemaster (cd src/usr.sbin/mergemaster && make 2090 install) after the buildworld before this step if you last updated 2091 from current before 20130425 or from -stable before 20130430. 2092 2093 [6] This only deletes old files and directories. Old libraries 2094 can be deleted by "make delete-old-libs", but you have to make 2095 sure that no program is using those libraries anymore. 2096 2097 [8] In order to have a kernel that can run the 4.x binaries needed to 2098 do an installworld, you must include the COMPAT_FREEBSD4 option in 2099 your kernel. Failure to do so may leave you with a system that is 2100 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 2101 required to run the 5.x binaries on more recent kernels. And so on 2102 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 2103 2104 Make sure that you merge any new devices from GENERIC since the 2105 last time you updated your kernel config file. 2106 2107 [9] When checking out sources, you must include the -P flag to have 2108 cvs prune empty directories. 2109 2110 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 2111 "?=" instead of the "=" assignment operator, so that buildworld can 2112 override the CPUTYPE if it needs to. 2113 2114 MAKEOBJDIRPREFIX must be defined in an environment variable, and 2115 not on the command line, or in /etc/make.conf. buildworld will 2116 warn if it is improperly defined. 2117FORMAT: 2118 2119This file contains a list, in reverse chronological order, of major 2120breakages in tracking -current. It is not guaranteed to be a complete 2121list of such breakages, and only contains entries since October 10, 2007. 2122If you need to see UPDATING entries from before that date, you will need 2123to fetch an UPDATING file from an older FreeBSD release. 2124 2125Copyright information: 2126 2127Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 2128 2129Redistribution, publication, translation and use, with or without 2130modification, in full or in part, in any form or format of this 2131document are permitted without further permission from the author. 2132 2133THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 2134IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2135WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2136DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 2137INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2138(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2139SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2140HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2141STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2142IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2143POSSIBILITY OF SUCH DAMAGE. 2144 2145Contact Warner Losh if you have any questions about your use of 2146this document. 2147 2148$FreeBSD: releng/10.0/UPDATING 277195 2015-01-14 21:27:46Z delphij $ 2149