UPDATING revision 308205
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 1420161102 p50 FreeBSD-SA-16:34.bind 15 FreeBSD-SA-16:35.openssl 16 17 Fix BIND remote Denial of Service vulnerability. [SA-16:34] 18 19 Fix OpenSSL remote DoS vulnerability. [SA-16:35] 20 2120161025 p49 FreeBSD-SA-16:15.sysarch [revised] 22 23 Fix incorrect argument validation in sysarch(2). [SA-16:15] 24 2520161010 p48 FreeBSD-SA-16:28.bind 26 FreeBSD-SA-16:29.bspatch 27 FreeBSD-SA-16:30.portsnap 28 29 Fix BIND remote Denial of Service vulnerability. [SA-16:28] 30 31 Fix bspatch heap overflow vulnerability. [SA-16:29] 32 33 Fix multiple portsnap vulnerabilities. [SA-16:30] 34 3520160926 p47 FreeBSD-SA-16:26.openssl [revised] 36 37 Fix OpenSSL regression introduced in SA-16:26. 38 3920160923 p46 FreeBSD-SA-16:26.openssl 40 41 Fix multiple OpenSSL vulnerabilitites. 42 4320160725 p45 FreeBSD-SA-16:25.bspatch 44 FreeBSD-EN-16:09.freebsd-update 45 46 Fix bspatch heap overflow vulnerability. [SA-16:25] 47 48 Fix freebsd-update(8) support of FreeBSD 11.0 release 49 distribution. [EN-16:09] 50 5120160604 p44 FreeBSD-SA-16:24.ntp 52 53 Fix multiple vulnerabilities of ntp. 54 5520160531 p43 FreeBSD-SA-16:20.linux 56 FreeBSD-SA-16:21.43bsd 57 FreeBSD-SA-16:22.libarchive 58 FreeBSD-SA-16:23.libarchive 59 60 Fix kernel stack disclosure in Linux compatibility layer. [SA-16:20] 61 Fix kernel stack disclosure in 4.3BSD compatibility layer. [SA-16:21] 62 Fix directory traversal in cpio(1). [SA-16:22] 63 Fix buffer overflow in libarchive(3). [SA-16:23] 64 6520160517 p42 FreeBSD-SA-16:18.atkbd 66 67 Fix buffer overflow in keyboard driver. [SA-16:18] 68 6920160504 p41 FreeBSD-SA-16:17.openssl 70 FreeBSD-EN-16:08.zfs 71 72 Fix multiple OpenSSL vulnerabilitites. [SA-16:17] 73 74 Fix memory leak in ZFS. [EN-16:08] 75 7620160429 p40 FreeBSD-SA-16:16.ntp 77 78 Fix multiple vulnerabilities of ntp. 79 8020160316 p39 FreeBSD-SA-16:14.openssh-xauth 81 FreeBSD-SA-16:15.sysarch 82 83 Fix OpenSSH xauth(1) command injection. [SA-16:14] 84 Fix incorrect argument validation in sysarch(2). [SA-16:15] 85 8620160310 p38 FreeBSD-SA-16:13.bind 87 FreeBSD-SA-16:12.openssl [revised] 88 89 Fix multiple vulnerabilities of BIND. [SA-16:13] 90 91 Fix a regression with OpenSSL patch. [SA-16:12] 92 9320160303 p37 FreeBSD-SA-16:12.openssl 94 95 Fix multiple vulnerabilities of OpenSSL. 96 9720160130 p36 FreeBSD-SA-16:11.openssl 98 99 Fix OpenSSL SSLv2 ciphersuite downgrade vulnerability. [SA-16:11] 100 10120160127 p35 FreeBSD-SA-16:08.bind 102 FreeBSD-SA-16:09.ntp 103 FreeBSD-SA-16:10.linux 104 105 Fix BIND remote denial of service vulnerability. [SA-16:08] 106 107 Fix multiple vulnerabilities of ntp. [SA-16:09] 108 109 Fix Linux compatibility layer issetugid(2) system call 110 vulnerability. [SA-16:10] 111 11220160114 p34 FreeBSD-SA-16:07.openssh 113 114 Fix OpenSSH client information leak. [SA-16:07] 115 11620160114 p33 FreeBSD-EN-16:02.pf 117 FreeBSD-EN-16:03.yplib 118 FreeBSD-SA-16:01.sctp 119 FreeBSD-SA-16:02.ntp 120 FreeBSD-SA-16:03.linux 121 FreeBSD-SA-16:04.linux 122 FreeBSD-SA-16:05.tcp 123 FreeBSD-SA-16:06.bsnmpd 124 125 Fix pf(4) generating bad TCP checksums. [EN-16:02] 126 Fix infinite loop in YP/NIS client library. [EN-16:03] 127 Fix remote denial of service in SCTP. [SA-16:01] 128 Update NTP to 4.2.8p5. [SA-16:02] 129 Fix kernel memory diclosure in Linux compatibility layer. [SA-16:03] 130 Fix kernel memory overwrite in Linux compatibility layer. [SA-16:04] 131 Fix crash in TCP MD5 signatures. [SA-16:05] 132 Fix insecure default permissions for snmpd.config. [SA-16:06] 133 13420151216 p32 FreeBSD-SA-15:27.bind 135 Fix BIND remote denial of service vulnerability. [SA-15:27] 136 13720151205 p31 FreeBSD-SA-15:26.openssl 138 139 Fix OpenSSL X509_ATTRIBUTE memory leak. [SA-15:26] 140 14120151104 p30 FreeBSD-SA-15:25.ntp [revised] 142 FreeBSD-EN-15:19.kqueue 143 FreeBSD-EN-15:20.vm 144 145 Fix regression of ntpq(8) utility exiting due to trap 6 in 146 9.3-RELEASE-p29. [SA-15:25] 147 148 Fix regression in ntpd(8) lacking support for RAWDCF reference 149 clock in 9.3-RELEASE-p29. [SA-15:25] 150 151 Fix kqueue write events never fired for files greater 2GB. [EN-15:19] 152 153 Fix applications exiting due to segmentation violation on a correct 154 memory address. [EN-15:20] 155 15620151026: p29 FreeBSD-SA-15:25.ntp 157 158 Fix multiple NTP vulnerabilities. New NTP version is 4.2.8p4. 159 160 The configuration file syntax has been changed, thus mergemaster 161 run is recommended. Now the "kod" parameter requires "limited" 162 parameter. If the ntp.conf is not updated, the ntpd will run 163 successfully, but with KoD disabled. 164 16520151002: p28 FreeBSD-SA-15:24.rpcbind [revised] 166 Revised patch to address a regression that prevents NIS from working. 167 16820150929: p27 FreeBSD-SA-15:24.rpcbind 169 170 Fix rpcbind(8) remote denial of service. [SA-15:24] 171 17220150916: p26 FreeBSD-EN-15:18.pkg 173 174 Implement pubkey support for pkg(7) bootstrap. [EN-15:18] 175 17620150902: p25 FreeBSD-SA-15:23.bind 177 178 Fix BIND remote denial of service vulnerability. [SA-15:23] 179 18020150825: p24 FreeBSD-SA-15:21.amd64 181 FreeBSD-SA-15:22.openssh 182 FreeBSD-EN-15:15.pkg 183 184 Fix local privilege escalation in IRET handler. [SA-15:21] 185 186 Fix OpenSSH multiple vulnerabilities. [SA-15:22] 187 188 Fix insufficient check of unsupported pkg(7) signature methods. 189 [EN-15:15] 190 19120150818: p23 FreeBSD-SA-15:20.expat 192 193 Fix multiple integer overflows in expat (libbsdxml) XML parser. 194 [SA-15:20] 195 19620150805: p22 FreeBSD-SA-15:19.routed 197 198 Fix routed remote denial of service vulnerability. 199 20020150728: p21 FreeBSD-SA-15:15.tcp 201 FreeBSD-SA-15:16.openssh 202 FreeBSD-SA-15:17.bind 203 204 Fix resource exhaustion in TCP reassembly. [SA-15:15] 205 206 Fix OpenSSH multiple vulnerabilities. [SA-15:16] 207 208 Fix BIND remote denial of service vulnerability. [SA-15:17] 209 21020150721: p20 FreeBSD-SA-15:13.tcp 211 212 Fix resource exhaustion due to sessions stuck in LAST_ACK state. 213 [SA-15:13] 214 21520150707: p19 FreeBSD-SA-15:11.bind 216 Fix BIND resolver remote denial of service when validating. 217 21820150630: p18 FreeBSD-EN-15:08.sendmail [revised] 219 FreeBSD-EN-15:09.xlocale 220 221 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 222 223 Fix inconsistency between locale and rune locale states. 224 [EN-15:09] 225 22620150618: p17 FreeBSD-EN-15:08.sendmail 227 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 228 22920150612: p16 FreeBSD-SA-15:10.openssl 230 Fix multiple vulnerabilities in OpenSSL. [SA-15:10] 231 23220150609: p15 FreeBSD-EN-15:06.file 233 234 Updated base system file(1) to 5.22 to address multiple denial 235 of service issues. 236 23720150513: p14 FreeBSD-EN-15:04.freebsd-update 238 239 Fix bug with freebsd-update(8) that does not ensure the previous 240 upgrade was completed. [EN-15:04] 241 24220150407: p13 FreeBSD-SA-15:04.igmp [revised] 243 FreeBSD-SA-15:07.ntp 244 FreeBSD-SA-15:09.ipv6 245 246 Improved patch for SA-15:04.igmp. 247 248 Fix multiple vulnerabilities of ntp. [SA-15:07] 249 250 Fix Denial of Service with IPv6 Router Advertisements. [SA-15:09] 251 25220150320: p12 253 Fix patch for SA-15:06.openssl. 254 25520150319: p11 FreeBSD-SA-15:06.openssl 256 Fix multiple vulnerabilities in OpenSSL. [SA-15:06] 257 25820150225: p10 FreeBSD-SA-15:04.igmp 259 FreeBSD-SA-15:05.bind 260 FreeBSD-EN-15:01.vt 261 FreeBSD-EN-15:02.openssl 262 FreeBSD-EN-15:03.freebsd-update 263 264 Fix integer overflow in IGMP protocol. [SA-15:04] 265 266 Fix BIND remote denial of service vulnerability. [SA-15:05] 267 268 Fix vt(4) crash with improper ioctl parameters. [EN-15:01] 269 270 Updated base system OpenSSL to 0.9.8zd. [EN-15:02] 271 272 Fix freebsd-update libraries update ordering issue. [EN-15:03] 273 27420150127: p9 FreeBSD-SA-15:02.kmem 275 FreeBSD-SA-15:03.sctp 276 277 Fix SCTP SCTP_SS_VALUE kernel memory corruption and disclosure 278 vulnerability. [SA-15:02] 279 280 Fix SCTP stream reset vulnerability. [SA-15:03] 281 28220150114: p8 FreeBSD-SA-15:01.openssl 283 Fix multiple vulnerabilities in OpenSSL. [SA-15:01] 284 28520141223: p7 FreeBSD-SA-14:31.ntp 286 FreeBSD-EN-14:13.freebsd-update 287 288 Fix multiple vulnerabilities in NTP suite. [SA-14:31] 289 Fix directory deletion issue in freebsd-update. [EN-14:13] 290 29120141210: p6 FreeBSD-SA-14:28.file 292 FreeBSD-SA-14:29.bind 293 294 Fix multiple vulnerabilities in file(1) and libmagic(3). 295 [SA-14:28] 296 297 Fix BIND remote denial of service vulnerability. [SA-14:29] 298 29920141104: p5 FreeBSD-SA-14:25.setlogin 300 FreeBSD-SA-14:26.ftp 301 FreeBSD-EN-14:12.zfs 302 303 Fix kernel stack disclosure in setlogin(2) / getlogin(2). 304 [SA-14:25] 305 306 Fix remote command execution in ftp(1). [SA-14:26] 307 308 Fix NFSv4 and ZFS cache consistency issue. [EN-14:12] 309 31020141022: p4 FreeBSD-EN-14:10.tzdata 311 FreeBSD-EN-14:11.crypt 312 313 Time zone data file update. [EN-14:10] 314 315 Change crypt(3) default hashing algorithm back to DES. [EN-14:11] 316 31720141021: p3 FreeBSD-SA-14:20.rtsold 318 FreeBSD-SA-14:21.routed 319 FreeBSD-SA-14:22.namei 320 FreeBSD-SA-14:23.openssl 321 322 Fix rtsold(8) remote buffer overflow vulnerability. [SA-14:20] 323 324 Fix routed(8) remote denial of service vulnerability. [SA-14:21] 325 326 Fix memory leak in sandboxed namei lookup. [SA-14:22] 327 328 Fix OpenSSL multiple vulnerabilities. [SA-14:23] 329 33020140916: p2 FreeBSD-SA-14:19.tcp 331 Fix Denial of Service in TCP packet processing. [SA-14:19] 332 33320140909: p1 FreeBSD-SA-14:18.openssl 334 Fix OpenSSL multiple vulnerabilities. [SA-14:18] 335 33620140716: 337 9.3-RELEASE. 338 33920140608: 340 On i386 and amd64 systems, the onifconsole flag is now set by default 341 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 342 as a login TTY if it is set in the bootloader as an active kernel 343 console. No changes in behavior should result otherwise. To revert to 344 the previous behavior, set ttyu0 to "off" in /etc/ttys. 345 34620140512: 347 Clang and llvm have been upgraded to 3.4.1 release. 348 34920140321: 350 Clang and llvm have been upgraded to 3.4 release. 351 35220140216: 353 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 354 been deprecated and will not be part of FreeBSD 11.0 and later 355 releases. If you use this driver, please consider switching to 356 the nfe(4) driver instead. 357 35820131216: 359 The behavior of gss_pseudo_random() for the krb5 mechanism 360 has changed, for applications requesting a longer random string 361 than produced by the underlying enctype's pseudo-random() function. 362 In particular, the random string produced from a session key of 363 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 364 be different at the 17th octet and later, after this change. 365 The counter used in the PRF+ construction is now encoded as a 366 big-endian integer in accordance with RFC 4402. 367 __FreeBSD_version is bumped to 902505. 368 36920130930: 370 9.2-RELEASE. 371 37220130823: 373 Behavior of devfs rules path matching has been changed. 374 Pattern is now always matched against fully qualified devfs 375 path and slash characters must be explicitly matched by 376 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 377 subdirectories must be reviewed. 378 37920130705: 380 hastctl(8)'s `status' command output changed to terse one-liner format. 381 Scripts using this should switch to `list' command or be rewritten. 382 38320130618: 384 Fix a bug that allowed a tracing process (e.g. gdb) to write 385 to a memory-mapped file in the traced process's address space 386 even if neither the traced process nor the tracing process had 387 write access to that file. 388 38920130605: 390 Added ZFS TRIM support which is enabled by default. To disable 391 ZFS TRIM support set vfs.zfs.trim.enabled=0 in loader.conf. 392 393 Creating new ZFS pools and adding new devices to existing pools 394 first performs a full device level TRIM which can take a significant 395 amount of time. The sysctl vfs.zfs.vdev.trim_on_init can be set to 0 396 to disable this behaviour. 397 398 ZFS TRIM requires the underlying device support BIO_DELETE which 399 is currently provided by methods such as ATA TRIM and SCSI UNMAP 400 via CAM, which are typically supported by SSD's. 401 402 Stats for ZFS TRIM can be monitored by looking at the sysctl's 403 under kstat.zfs.misc.zio_trim. 404 40520130524: 406 `list' command has been added to hastctl(8). For now, it is full 407 equivalent of `status' command. 408 WARNING: in the near future the output of hastctl's status command 409 will change to more terse format. If you use `hastctl status' 410 for parsing in your scripts, switch to `hastctl list'. 411 41220130430: 413 The mergemaster command now uses the default MAKEOBJDIRPREFIX 414 rather than creating it's own in the temporary directory in 415 order allow access to bootstrapped versions of tools such as 416 install and mtree. When upgrading from version of FreeBSD where 417 the install command does not support -l, you will need to 418 install a new mergemaster command if mergemaster -p is required. 419 This can be accomplished with the command (cd src/usr.sbin/mergemaster 420 && make install). 421 422 Due to the use of the new -l option to install(1) during build 423 and install, you must take care not to directly set the INSTALL 424 make variable in your /etc/make.conf, /etc/src.conf, or on the 425 command line. If you wish to use the -C flag for all installs 426 you may be able to add INSTALL+=-C to /etc/make.conf or 427 /etc/src.conf. 428 42920130429: 430 Fix a bug that allows NFS clients to issue READDIR on files. 431 43220130315: 433 The install(1) option -M has changed meaning and now takes an 434 argument that is a file or path to append logs to. In the 435 unlikely event that -M was the last option on the command line 436 and the command line contained at least two files and a target 437 directory the first file will have logs appended to it. The -M 438 option served little practical purpose in the last decade so it's 439 used expected to be extremely rare. 440 44120130225: 442 A new compression method (lz4) has been merged to. Please refer to 443 zpool-features(7) for more information. 444 445 Please refer to the "ZFS notes" section of this file for information 446 on upgrading boot ZFS pools. 447 44820121224: 449 The VFS KBI was changed with the merge of several nullfs 450 optimizations and fixes. All filesystem modules must be 451 recompiled. 452 45320121218: 454 With the addition of auditdistd(8), a new auditdistd user is now 455 depended on during installworld. "mergemaster -p" can be used to add 456 the user prior to installworld, as documented in the handbook. 457 45820121205: 459 9.1-RELEASE. 460 46120121129: 462 A new version of ZFS (pool version 5000) has been merged to 9-STABLE. 463 Starting with this version the old system of ZFS pool versioning 464 is superseded by "feature flags". This concept enables forward 465 compatibility against certain future changes in functionality of ZFS 466 pools. The first two read-only compatible "feature flags" for ZFS 467 pools are "com.delphix:async_destroy" and "com.delphix:empty_bpobj". 468 For more information read the new zpool-features(7) manual page. 469 Please refer to the "ZFS notes" section of this file for information 470 on upgrading boot ZFS pools. 471 47220121114: 473 The commit introducing bsd.compiler.mk breaks the traditional 474 building of kernels before this point. Add -m ${SRC}/share/mk 475 (for the right value of SRC) to your command lines to work 476 around; update your useland to a point after this; or use the 477 buildkernel/installkernel top-level targets. See also 20120829. 478 47920121102: 480 The IPFIREWALL_FORWARD kernel option has been removed. Its 481 functionality now turned on by default. 482 48320120913: 484 The random(4) support for the VIA hardware random number 485 generator (`PADLOCK') is no longer enabled unconditionally. 486 Add the PADLOCK_RNG option in the custom kernel config if 487 needed. The GENERIC kernels on i386 and amd64 do include the 488 option, so the change only affects the custom kernel 489 configurations. 490 49120120829: 492 The amd64 kernel now uses xsetbv, xrstor instructions. To compile with 493 the traditional method, you must update your system with an installworld 494 before the kernel will build. The documented make buildkernel/installkernel 495 interfaces (coupled with fresh make kernel-toolchain) continue to work. 496 49720120727: 498 The sparc64 ZFS loader has been changed to no longer try to auto- 499 detect ZFS providers based on diskN aliases but now requires these 500 to be explicitly listed in the OFW boot-device environment variable. 501 50220120422: 503 Now unix domain sockets behave "as expected" on nullfs(5). Previously 504 nullfs(5) did not pass through all behaviours to the underlying layer, 505 as a result if we bound to a socket on the lower layer we could connect 506 only to the lower path; if we bound to the upper layer we could connect 507 only to the upper path. The new behavior is one can connect to both the 508 lower and the upper paths regardless what layer path one binds to. 509 51020120109: 511 The acpi_wmi(4) status device /dev/wmistat has been renamed to 512 /dev/wmistat0. 513 51420120106: 515 A new VOP_ADVISE() was added to support posix_fadvise(2). All 516 filesystem modules must be recompiled. 517 51820120106: 519 The interface of the VOP_VPTOCNP(9) changed, now the returned 520 vnode shall be referenced, previously it was required to be 521 only held. All in-tree filesystems are converted. 522 52320120106: 524 9.0-RELEASE. 525 52620111101: 527 The broken amd(4) driver has been replaced with esp(4) in the amd64, 528 i386 and pc98 GENERIC kernel configuration files. 529 53020110913: 531 This commit modifies vfs_register() so that it uses a hash 532 calculation to set vfc_typenum, which is enabled by default. 533 The first time a system is booted after this change, the 534 vfc_typenum values will change for all file systems. The 535 main effect of this is a change to the NFS server file handles 536 for file systems that use vfc_typenum in their fsid, such as ZFS. 537 It will, however, prevent vfc_typenum from changing when file 538 systems are loaded in a different order for subsequent reboots. 539 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 540 until you are ready to remount all NFS clients after a reboot. 541 54220110828: 543 Bump the shared library version numbers for libraries that 544 do not use symbol versioning, have changed the ABI compared 545 to stable/8 and which shared library version was not bumped. 546 Done as part of 9.0-RELEASE cycle. 547 54820110815: 549 During the merge of Capsicum features, the fget(9) KPI was modified. 550 This may require the rebuilding of out-of-tree device drivers -- 551 issues have been reported specifically with the nVidia device driver. 552 __FreeBSD_version is bumped to 900041. 553 554 Also, there is a period between 20110811 and 20110814 where the 555 special devices /dev/{stdin,stdout,stderr} did not work correctly. 556 Building world from a kernel during that window may not work. 557 55820110628: 559 The packet filter (pf) code has been updated to OpenBSD 4.5. 560 You need to update userland tools to be in sync with kernel. 561 This update breaks backward compatibility with earlier pfsync(4) 562 versions. Care must be taken when updating redundant firewall setups. 563 56420110608: 565 The following sysctls and tunables are retired on x86 platforms: 566 machdep.hlt_cpus 567 machdep.hlt_logical_cpus 568 The following sysctl is retired: 569 machdep.hyperthreading_allowed 570 The sysctls were supposed to provide a way to dynamically offline and 571 online selected CPUs on x86 platforms, but the implementation has not 572 been reliable especially with SCHED_ULE scheduler. 573 machdep.hyperthreading_allowed tunable is still available to ignore 574 hyperthreading CPUs at OS level. 575 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 576 where X is an APIC ID of a CPU. Be advised, though, that disabling 577 CPUs in non-uniform fashion will result in non-uniform topology and 578 may lead to sub-optimal system performance with SCHED_ULE, which is 579 a default scheduler. 580 58120110607: 582 cpumask_t type is retired and cpuset_t is used in order to describe 583 a mask of CPUs. 584 58520110531: 586 Changes to ifconfig(8) for dynamic address family detection mandate 587 that you are running a kernel of 20110525 or later. Make sure to 588 follow the update procedure to boot a new kernel before installing 589 world. 590 59120110513: 592 Support for sun4v architecture is officially dropped 593 59420110503: 595 Several KPI breaking changes have been committed to the mii(4) layer, 596 the PHY drivers and consequently some Ethernet drivers using mii(4). 597 This means that miibus.ko and the modules of the affected Ethernet 598 drivers need to be recompiled. 599 600 Note to kernel developers: Given that the OUI bit reversion problem 601 was fixed as part of these changes all mii(4) commits related to OUIs, 602 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 603 handling, no longer can be merged verbatim to stable/8 and previous 604 branches. 605 60620110430: 607 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 608 into their kernel configurations along with 'device pci'. 609 61020110427: 611 The default NFS client is now the new NFS client, so fstype "newnfs" 612 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 613 Although mounts via fstype "nfs" will usually work without userland 614 changes, it is recommended that the mount(8) and mount_nfs(8) 615 commands be rebuilt from sources and that a link to mount_nfs called 616 mount_oldnfs be created. The new client is compiled into the 617 kernel with "options NFSCL" and this is needed for diskless root 618 file systems. The GENERIC kernel configs have been changed to use 619 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 620 To use the regular/old client, you can "mount -t oldnfs ...". For 621 a diskless root file system, you must also include a line like: 622 623 vfs.root.mountfrom="oldnfs:" 624 625 in the boot/loader.conf on the root fs on the NFS server to make 626 a diskless root fs use the old client. 627 62820110424: 629 The GENERIC kernels for all architectures now default to the new 630 CAM-based ATA stack. It means that all legacy ATA drivers were 631 removed and replaced by respective CAM drivers. If you are using 632 ATA device names in /etc/fstab or other places, make sure to update 633 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 634 where 'Y's are the sequential numbers starting from zero for each type 635 in order of detection, unless configured otherwise with tunables, 636 see cam(4)). There will be symbolic links created in /dev/ to map 637 old adX devices to the respective adaY. They should provide basic 638 compatibility for file systems mounting in most cases, but they do 639 not support old user-level APIs and do not have respective providers 640 in GEOM. Consider using updated management tools with new device names. 641 642 It is possible to load devices ahci, ata, siis and mvs as modules, 643 but option ATA_CAM should remain in kernel configuration to make ata 644 module work as CAM driver supporting legacy ATA controllers. Device ata 645 still can be used in modular fashion (atacore + ...). Modules atadisk 646 and atapi* are not used and won't affect operation in ATA_CAM mode. 647 Note that to use CAM-based ATA kernel should include CAM devices 648 scbus, pass, da (or explicitly ada), cd and optionally others. All of 649 them are parts of the cam module. 650 651 ataraid(4) functionality is now supported by the RAID GEOM class. 652 To use it you can load geom_raid kernel module and use graid(8) tool 653 for management. Instead of /dev/arX device names, use /dev/raid/rX. 654 655 No kernel config options or code have been removed, so if a problem 656 arises, please report it and optionally revert to the old ATA stack. 657 In order to do it you can remove from the kernel config: 658 options ATA_CAM 659 device ahci 660 device mvs 661 device siis 662 , and instead add back: 663 device atadisk # ATA disk drives 664 device ataraid # ATA RAID drives 665 device atapicd # ATAPI CDROM drives 666 device atapifd # ATAPI floppy drives 667 device atapist # ATAPI tape drives 668 66920110423: 670 The default NFS server has been changed to the new server, which 671 was referred to as the experimental server. If you need to switch 672 back to the old NFS server, you must now put the "-o" option on 673 both the mountd and nfsd commands. This can be done using the 674 mountd_flags and nfs_server_flags rc.conf variables until an 675 update to the rc scripts is committed, which is coming soon. 676 67720110418: 678 The GNU Objective-C runtime library (libobjc), and other Objective-C 679 related components have been removed from the base system. If you 680 require an Objective-C library, please use one of the available ports. 681 68220110331: 683 ath(4) has been split into bus- and device- modules. if_ath contains 684 the HAL, the TX rate control and the network device code. if_ath_pci 685 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 686 contains the AHB glue. Users need to load both if_ath_pci and if_ath 687 in order to use ath on everything else. 688 689 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 690 need to load if_ath and if_ath_pci for ath(4) operation. 691 69220110314: 693 As part of the replacement of sysinstall, the process of building 694 release media has changed significantly. For details, please re-read 695 release(7), which has been updated to reflect the new build process. 696 69720110218: 698 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 699 is the last available version under GPLv2. It brings a number of new 700 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 701 4.1 and SSE 4.2), better support for powerpc64, a number of new 702 directives, and lots of other small improvements. See the ChangeLog 703 file in contrib/binutils for the full details. 704 70520110218: 706 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 707 compliant, and will now use half of hash for authentication. 708 This will break interoperability with all stacks (including all 709 actual FreeBSD versions) who implement 710 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 711 authentication). 712 The only workaround with such peers is to use another HMAC 713 algorithm for IPsec ("phase 2") authentication. 714 71520110207: 716 Remove the uio_yield prototype and symbol. This function has 717 been misnamed since it was introduced and should not be 718 globally exposed with this name. The equivalent functionality 719 is now available using kern_yield(curthread->td_user_pri). 720 The function remains undocumented. 721 72220110112: 723 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 724 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 725 for scalar sysctls is defined but disabled. Code that needs 726 UQUAD to pass the type checking that must compile on older 727 systems where the define is not present can check against 728 __FreeBSD_version >= 900030. 729 730 The system dialog(1) has been replaced with a new version previously 731 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 732 with the previous version, but the libdialog associated with it has 733 a largely incompatible API. As such, the original version of libdialog 734 will be kept temporarily as libodialog, until its base system consumers 735 are replaced or updated. Bump __FreeBSD_version to 900030. 736 73720110103: 738 If you are trying to run make universe on a -stable system, and you get 739 the following warning: 740 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 741 unknown. config(8) likely too old." 742 or something similar to it, then you must upgrade your -stable system 743 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 744 stable/8) or build the config from the latest stable/8 branch and 745 install it on your system. 746 747 Prior to this date, building a current universe on 8-stable system from 748 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 749 error in the first kernel build phase. A new config on those old 750 systems will fix that problem for older versions of -current. 751 75220101228: 753 The TCP stack has been modified to allow Khelp modules to interact with 754 it via helper hook points and store per-connection data in the TCP 755 control block. Bump __FreeBSD_version to 900029. User space tools that 756 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 757 be recompiled. 758 75920101114: 760 Generic IEEE 802.3 annex 31B full duplex flow control support has been 761 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 762 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 763 to take advantage of it instead of using custom implementations. This 764 means that these drivers now no longer unconditionally advertise 765 support for flow control but only do so if flow control is a selected 766 media option. This was implemented in the generic support that way in 767 order to allow flow control to be switched on and off via ifconfig(8) 768 with the PHY specific default to typically off in order to protect 769 from unwanted effects. Consequently, if you used flow control with 770 one of the above mentioned drivers you now need to explicitly enable 771 it, for example via: 772 ifconfig bge0 media auto mediaopt flowcontrol 773 774 Along with the above mentioned changes generic support for setting 775 1000baseT master mode also has been added and brgphy(4), ciphy(4), 776 e1000phy(4) as well as ip1000phy(4) have been converted to take 777 advantage of it. This means that these drivers now no longer take the 778 link0 parameter for selecting master mode but the master media option 779 has to be used instead, for example like in the following: 780 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 781 782 Selection of master mode now is also available with all other PHY 783 drivers supporting 1000baseT. 784 78520101111: 786 The TCP stack has received a significant update to add support for 787 modularised congestion control and generally improve the clarity of 788 congestion control decisions. Bump __FreeBSD_version to 900025. User 789 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 790 sockstat) need to be recompiled. 791 79220101002: 793 The man(1) utility has been replaced by a new version that no longer 794 uses /etc/manpath.config. Please consult man.conf(5) for how to 795 migrate local entries to the new format. 796 79720100928: 798 The copyright strings printed by login(1) and sshd(8) at the time of a 799 new connection have been removed to follow other operating systems and 800 upstream sshd. 801 80220100915: 803 A workaround for a fixed ld bug has been removed in kernel code, 804 so make sure that your system ld is built from sources after 805 revision 210245 from 2010-07-19 (r211583 if building head kernel 806 on stable/8, r211584 for stable/7; both from 2010-08-21). 807 A symptom of incorrect ld version is different addresses for 808 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 809 81020100913: 811 The $ipv6_prefer variable in rc.conf(5) has been split into 812 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 813 814 The $ip6addrctl_policy is a variable to choose a pre-defined 815 address selection policy set by ip6addrctl(8). A value 816 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 817 default is "AUTO". 818 819 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 820 flag (see an entry of 20090926) is set on an interface with no 821 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 822 security reason. If you want IPv6 link-local address on all 823 interfaces by default, set this to "YES". 824 825 The old ipv6_prefer="YES" is equivalent to 826 ipv6_activate_all_interfaces="YES" and 827 ip6addrctl_policy="ipv6_prefer". 828 82920100913: 830 DTrace has grown support for userland tracing. Due to this, DTrace is 831 now i386 and amd64 only. 832 dtruss(1) is now installed by default on those systems and a new 833 kernel module is needed for userland tracing: fasttrap. 834 No changes to your kernel config file are necessary to enable 835 userland tracing, but you might consider adding 'STRIP=' and 836 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 837 to have informative userland stack traces in DTrace (ustack). 838 83920100725: 840 The acpi_aiboost(4) driver has been removed in favor of the new 841 aibs(4) driver. You should update your kernel configuration file. 842 84320100722: 844 BSD grep has been imported to the base system and it is built by 845 default. It is completely BSD licensed, highly GNU-compatible, uses 846 less memory than its GNU counterpart and has a small codebase. 847 However, it is slower than its GNU counterpart, which is mostly 848 noticeable for larger searches, for smaller ones it is measurable 849 but not significant. The reason is complex, the most important factor 850 is that we lack a modern and efficient regex library and GNU 851 overcomes this by optimizing the searches internally. Future work 852 on improving the regex performance is planned, for the meantime, 853 users that need better performance, can build GNU grep instead by 854 setting the WITH_GNU_GREP knob. 855 85620100713: 857 Due to the import of powerpc64 support, all existing powerpc kernel 858 configuration files must be updated with a machine directive like this: 859 machine powerpc powerpc 860 861 In addition, an updated config(8) is required to build powerpc kernels 862 after this change. 863 86420100713: 865 A new version of ZFS (version 15) has been merged to -HEAD. 866 This version uses a python library for the following subcommands: 867 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 868 For full functionality of these commands the following port must 869 be installed: sysutils/py-zfs 870 87120100429: 872 'vm_page's are now hashed by physical address to an array of mutexes. 873 Currently this is only used to serialize access to hold_count. Over 874 time the page queue mutex will be peeled away. This changes the size 875 of pmap on every architecture. And requires all callers of vm_page_hold 876 and vm_page_unhold to be updated. 877 87820100402: 879 WITH_CTF can now be specified in src.conf (not recommended, there 880 are some problems with static executables), make.conf (would also 881 affect ports which do not use GNU make and do not override the 882 compile targets) or in the kernel config (via "makeoptions 883 WITH_CTF=yes"). 884 When WITH_CTF was specified there before this was silently ignored, 885 so make sure that WITH_CTF is not used in places which could lead 886 to unwanted behavior. 887 88820100311: 889 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 890 to allow 32-bit compatibility on non-x86 platforms. All kernel 891 configurations on amd64 and ia64 platforms using these options must 892 be modified accordingly. 893 89420100113: 895 The utmp user accounting database has been replaced with utmpx, 896 the user accounting interface standardized by POSIX. 897 Unfortunately the semantics of utmp and utmpx don't match, 898 making it practically impossible to support both interfaces. 899 The user accounting database is used by tools like finger(1), 900 last(1), talk(1), w(1) and ac(8). 901 902 All applications in the base system use utmpx. This means only 903 local binaries (e.g. from the ports tree) may still use these 904 utmp database files. These applications must be rebuilt to make 905 use of utmpx. 906 907 After the system has been upgraded, it is safe to remove the old 908 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 909 assuming their contents is of no importance anymore. Old wtmp 910 databases can only be used by last(1) and ac(8) after they have 911 been converted to the new format using wtmpcvt(1). 912 91320100108: 914 Introduce the kernel thread "deadlock resolver" (which can be enabled 915 via the DEADLKRES option, see NOTES for more details) and the 916 sleepq_type() function for sleepqueues. 917 91820091202: 919 The rc.firewall and rc.firewall6 were unified, and 920 rc.firewall6 and rc.d/ip6fw were removed. 921 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 922 variables are obsoleted. Instead, the following new rc 923 variables are added to rc.d/ipfw: 924 925 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 926 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 927 firewall_simple_onet_ipv6, firewall_trusted_ipv6 928 929 The meanings correspond to the relevant IPv4 variables. 930 93120091125: 932 8.0-RELEASE. 933 93420091113: 935 The default terminal emulation for syscons(4) has been changed 936 from cons25 to xterm on all platforms except pc98. This means 937 that the /etc/ttys file needs to be updated to ensure correct 938 operation of applications on the console. 939 940 The terminal emulation style can be toggled per window by using 941 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 942 options can be used to change the compile-time default back to 943 cons25. 944 945 To prevent graphical artifacts, make sure the TERM environment 946 variable is set to match the terminal emulation that is being 947 performed by syscons(4). 948 94920091109: 950 The layout of the structure ieee80211req_scan_result has changed. 951 Applications that require wireless scan results (e.g. ifconfig(8)) 952 from net80211 need to be recompiled. 953 954 Applications such as wpa_supplicant(8) may require a full world 955 build without using NO_CLEAN in order to get synchronized with the 956 new structure. 957 95820091025: 959 The iwn(4) driver has been updated to support the 5000 and 5150 series. 960 There's one kernel module for each firmware. Adding "device iwnfw" 961 to the kernel configuration file means including all three firmware 962 images inside the kernel. If you want to include just the one for 963 your wireless card, use the devices iwn4965fw, iwn5000fw or 964 iwn5150fw. 965 96620090926: 967 The rc.d/network_ipv6, IPv6 configuration script has been integrated 968 into rc.d/netif. The changes are the following: 969 970 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 971 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 972 Note that both variables need the "inet6" keyword at the head. 973 974 Do not set $ipv6_network_interfaces manually if you do not 975 understand what you are doing. It is not needed in most cases. 976 977 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 978 they are obsolete. 979 980 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 981 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 982 983 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 984 all configured interfaces have "inet6 accept_rtadv" in the 985 $ifconfig_IF_ipv6. These are for backward compatibility. 986 987 3. A new variable $ipv6_prefer has been added. If NO, IPv6 988 functionality of interfaces with no corresponding 989 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 990 and the default address selection policy of ip6addrctl(8) 991 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 992 Note that if you want to configure IPv6 functionality on the 993 disabled interfaces after boot, first you need to clear the flag by 994 using ifconfig(8) like: 995 996 ifconfig em0 inet6 -ifdisabled 997 998 If YES, the default address selection policy is set as 999 IPv6-preferred. 1000 1001 The default value of $ipv6_prefer is NO. 1002 1003 4. If your system need to receive Router Advertisement messages, 1004 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 1005 scripts automatically invoke rtsol(8) when the interface becomes 1006 UP. The Router Advertisement messages are used for SLAAC 1007 (State-Less Address AutoConfiguration). 1008 100920090922: 1010 802.11s D3.03 support was committed. This is incompatible with the 1011 previous code, which was based on D3.0. 1012 101320090912: 1014 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1015 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1016 control whether accepting Router Advertisement messages or not. 1017 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1018 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1019 The ifconfig(8) utility now supports these flags. 1020 102120090910: 1022 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1023 mount(8) and -a option for df(1) to see them. 1024 102520090825: 1026 The old tunable hw.bus.devctl_disable has been superseded by 1027 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1028 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1029 is 1000. 1030 103120090813: 1032 Remove the option STOP_NMI. The default action is now to use NMI only 1033 for KDB via the newly introduced function stop_cpus_hard() and 1034 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1035 103620090803: 1037 The stable/8 branch created in subversion. This corresponds to the 1038 RELENG_8 branch in CVS. 1039 104020090719: 1041 Bump the shared library version numbers for all libraries that do not 1042 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1043 __FreeBSD_version to 800105. 1044 104520090714: 1046 Due to changes in the implementation of virtual network stack support, 1047 all network-related kernel modules must be recompiled. As this change 1048 breaks the ABI, bump __FreeBSD_version to 800104. 1049 105020090713: 1051 The TOE interface to the TCP syncache has been modified to remove 1052 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1053 The cxgb driver is the only TOE consumer affected by this change, and 1054 needs to be recompiled along with the kernel. As this change breaks 1055 the ABI, bump __FreeBSD_version to 800103. 1056 105720090712: 1058 Padding has been added to struct tcpcb, sackhint and tcpstat in 1059 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1060 maintaining the ABI. However, this change breaks the ABI, so bump 1061 __FreeBSD_version to 800102. User space tools that rely on the size of 1062 any of these structs (e.g. sockstat) need to be recompiled. 1063 106420090630: 1065 The NFS_LEGACYRPC option has been removed along with the old kernel 1066 RPC implementation that this option selected. Kernel configurations 1067 may need to be adjusted. 1068 106920090629: 1070 The network interface device nodes at /dev/net/<interface> have been 1071 removed. All ioctl operations can be performed the normal way using 1072 routing sockets. The kqueue functionality can generally be replaced 1073 with routing sockets. 1074 107520090628: 1076 The documentation from the FreeBSD Documentation Project (Handbook, 1077 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1078 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1079 108020090624: 1081 The ABI of various structures related to the SYSV IPC API have been 1082 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1083 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1084 800100. 1085 108620090622: 1087 Layout of struct vnet has changed as routing related variables were 1088 moved to their own Vimage module. Modules need to be recompiled. Bump 1089 __FreeBSD_version to 800099. 1090 109120090619: 1092 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1093 respectively. As long as no more than 16 groups per process are used, 1094 no changes should be visible. When more than 16 groups are used, old 1095 binaries may fail if they call getgroups() or getgrouplist() with 1096 statically sized storage. Recompiling will work around this, but 1097 applications should be modified to use dynamically allocated storage 1098 for group arrays as POSIX.1-2008 does not cap an implementation's 1099 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1100 1101 NFS and portalfs mounts may also be affected as the list of groups is 1102 truncated to 16. Users of NFS who use more than 16 groups, should 1103 take care that negative group permissions are not used on the exported 1104 file systems as they will not be reliable unless a GSSAPI based 1105 authentication method is used. 1106 110720090616: 1108 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1109 option compiles in the support for adaptive spinning for lockmgrs 1110 which want to enable it. The lockinit() function now accepts the flag 1111 LK_ADAPTIVE in order to make the lock object subject to adaptive 1112 spinning when both held in write and read mode. 1113 111420090613: 1115 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1116 changed. User applications that use this ioctl need to be rebuilt. 1117 111820090611: 1119 The layout of struct thread has changed. Kernel and modules need to 1120 be rebuilt. 1121 112220090608: 1123 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1124 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1125 112620090602: 1127 window(1) has been removed from the base system. It can now be 1128 installed from ports. The port is called misc/window. 1129 113020090601: 1131 The way we are storing and accessing `routing table' entries has 1132 changed. Programs reading the FIB, like netstat, need to be 1133 re-compiled. 1134 113520090601: 1136 A new netisr implementation has been added for FreeBSD 8. Network 1137 file system modules, such as igmp, ipdivert, and others, should be 1138 rebuilt. 1139 Bump __FreeBSD_version to 800096. 1140 114120090530: 1142 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1143 more valid. 1144 114520090530: 1146 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1147 Bump __FreeBSD_version to 800094. 1148 114920090529: 1150 Add mnt_xflag field to 'struct mount'. File system modules need to be 1151 rebuilt. 1152 Bump __FreeBSD_version to 800093. 1153 115420090528: 1155 The compiling option ADAPTIVE_SX has been retired while it has been 1156 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1157 The KPI for sx_init_flags() changes as accepting flags: 1158 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1159 been introduced in order to handle the reversed logic. 1160 Bump __FreeBSD_version to 800092. 1161 116220090527: 1163 Add support for hierarchical jails. Remove global securelevel. 1164 Bump __FreeBSD_version to 800091. 1165 116620090523: 1167 The layout of struct vnet_net has changed, therefore modules 1168 need to be rebuilt. 1169 Bump __FreeBSD_version to 800090. 1170 117120090523: 1172 The newly imported zic(8) produces a new format in the output. Please 1173 run tzsetup(8) to install the newly created data to /etc/localtime. 1174 117520090520: 1176 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1177 hw.usb.* and is now consistent again with previous releases. 1178 117920090520: 1180 802.11 monitor mode support was revised and driver api's were changed. 1181 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1182 of DLT_IEEE802_11. No user-visible data structures were changed but 1183 applications that use DLT_IEEE802_11 may require changes. 1184 Bump __FreeBSD_version to 800088. 1185 118620090430: 1187 The layout of the following structs has changed: sysctl_oid, 1188 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1189 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1190 panics may be experienced. World rebuild is required for 1191 correctly checking networking state from userland. 1192 Bump __FreeBSD_version to 800085. 1193 119420090429: 1195 MLDv2 and Source-Specific Multicast (SSM) have been merged 1196 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1197 The implementation of SSM within FreeBSD's IPv6 stack closely 1198 follows the IPv4 implementation. 1199 1200 For kernel developers: 1201 1202 * The most important changes are that the ip6_output() and 1203 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1204 and this lock has been downgraded to a non-recursive mutex. 1205 1206 * As with the changes to the IPv4 stack to support SSM, filtering 1207 of inbound multicast traffic must now be performed by transport 1208 protocols within the IPv6 stack. This does not apply to TCP and 1209 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1210 1211 * The KPIs used by IPv6 multicast are similar to those used by 1212 the IPv4 stack, with the following differences: 1213 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1214 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1215 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1216 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1217 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1218 for MLDv1 have an additional 'timer' argument which is used to 1219 jitter the initial membership report for the solicited-node 1220 multicast membership on-link. 1221 * This is not strictly needed for MLDv2, which already jitters 1222 its report transmissions. However, the 'timer' argument is 1223 preserved in case MLDv1 is active on the interface. 1224 1225 * The KAME linked-list based IPv6 membership implementation has 1226 been refactored to use a vector similar to that used by the IPv4 1227 stack. 1228 Code which maintains a list of its own multicast memberships 1229 internally, e.g. carp, has been updated to reflect the new 1230 semantics. 1231 1232 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1233 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1234 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1235 implementation constraint which needs to be addressed in HEAD. 1236 1237 For application developers: 1238 1239 * The changes are broadly similar to those made for the IPv4 1240 stack. 1241 1242 * The use of IPv4 and IPv6 multicast socket options on the same 1243 socket, using mapped addresses, HAS NOT been tested or supported. 1244 1245 * There are a number of issues with the implementation of various 1246 IPv6 multicast APIs which need to be resolved in the API surface 1247 before the implementation is fully compatible with KAME userland 1248 use, and these are mostly to do with interface index treatment. 1249 1250 * The literature available discusses the use of either the delta / ASM 1251 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1252 using setsourcefilter(3)/getsourcefilter(3). For more information 1253 please refer to RFC 3768, 'Socket Interface Extensions for 1254 Multicast Source Filters'. 1255 1256 * Applications which use the published RFC 3678 APIs should be fine. 1257 1258 For systems administrators: 1259 1260 * The mtest(8) utility has been refactored to support IPv6, in 1261 addition to IPv4. Interface addresses are no longer accepted 1262 as arguments, their names must be used instead. The utility 1263 will map the interface name to its first IPv4 address as 1264 returned by getifaddrs(3). 1265 1266 * The ifmcstat(8) utility has also been updated to print the MLDv2 1267 endpoint state and source filter lists via sysctl(3). 1268 1269 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1270 loopback of IPv6 multicast datagrams by default; it defaults to 1 1271 to preserve the existing behaviour. Disabling multicast loopback is 1272 recommended for optimal system performance. 1273 1274 * The IPv6 MROUTING code has been changed to examine this sysctl 1275 instead of attempting to perform a group lookup before looping 1276 back forwarded datagrams. 1277 1278 Bump __FreeBSD_version to 800084. 1279 128020090422: 1281 Implement low-level Bluetooth HCI API. 1282 Bump __FreeBSD_version to 800083. 1283 128420090419: 1285 The layout of struct malloc_type, used by modules to register new 1286 memory allocation types, has changed. Most modules will need to 1287 be rebuilt or panics may be experienced. 1288 Bump __FreeBSD_version to 800081. 1289 129020090415: 1291 Anticipate overflowing inp_flags - add inp_flags2. 1292 This changes most offsets in inpcb, so checking v4 connection 1293 state will require a world rebuild. 1294 Bump __FreeBSD_version to 800080. 1295 129620090415: 1297 Add an llentry to struct route and struct route_in6. Modules 1298 embedding a struct route will need to be recompiled. 1299 Bump __FreeBSD_version to 800079. 1300 130120090414: 1302 The size of rt_metrics_lite and by extension rtentry has changed. 1303 Networking administration apps will need to be recompiled. 1304 The route command now supports show as an alias for get, weighting 1305 of routes, sticky and nostick flags to alter the behavior of stateful 1306 load balancing. 1307 Bump __FreeBSD_version to 800078. 1308 130920090408: 1310 Do not use Giant for kbdmux(4) locking. This is wrong and 1311 apparently causing more problems than it solves. This will 1312 re-open the issue where interrupt handlers may race with 1313 kbdmux(4) in polling mode. Typical symptoms include (but 1314 not limited to) duplicated and/or missing characters when 1315 low level console functions (such as gets) are used while 1316 interrupts are enabled (for example geli password prompt, 1317 mountroot prompt etc.). Disabling kbdmux(4) may help. 1318 131920090407: 1320 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1321 kernel modules referencing any of the above need to be recompiled. 1322 Bump __FreeBSD_version to 800075. 1323 132420090320: 1325 GEOM_PART has become the default partition slicer for storage devices, 1326 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1327 introduces some changes: 1328 1329 MSDOS/EBR: the devices created from MSDOS extended partition entries 1330 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1331 to devices with offset-based names. fstabs may need to be modified. 1332 1333 BSD: the "geometry does not match label" warning is harmless in most 1334 cases but it points to problems in file system misalignment with 1335 disk geometry. The "c" partition is now implicit, covers the whole 1336 top-level drive and cannot be (mis)used by users. 1337 1338 General: Kernel dumps are now not allowed to be written to devices 1339 whose partition types indicate they are meant to be used for file 1340 systems (or, in case of MSDOS partitions, as something else than 1341 the "386BSD" type). 1342 1343 Most of these changes date approximately from 200812. 1344 134520090319: 1346 The uscanner(4) driver has been removed from the kernel. This follows 1347 Linux removing theirs in 2.6 and making libusb the default interface 1348 (supported by sane). 1349 135020090319: 1351 The multicast forwarding code has been cleaned up. netstat(1) 1352 only relies on KVM now for printing bandwidth upcall meters. 1353 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1354 ip6_mroute_mod respectively. The config(5) options for statically 1355 compiling this code remain the same, i.e. 'options MROUTING'. 1356 135720090315: 1358 Support for the IFF_NEEDSGIANT network interface flag has been 1359 removed, which means that non-MPSAFE network device drivers are no 1360 longer supported. In particular, if_ar, if_sr, and network device 1361 drivers from the old (legacy) USB stack can no longer be built or 1362 used. 1363 136420090313: 1365 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1366 a bunch of new language catalog files have also been added. 1367 This means that some common libc messages are now localized and 1368 they depend on the LC_MESSAGES environmental variable. 1369 137020090313: 1371 The k8temp(4) driver has been renamed to amdtemp(4) since 1372 support for Family 10 and Family 11 CPU families was added. 1373 137420090309: 1375 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1376 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1377 1378 For kernel developers, the most important changes are that the 1379 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1380 and this lock has been downgraded to a non-recursive mutex. 1381 1382 Transport protocols (UDP, Raw IP) are now responsible for filtering 1383 inbound multicast traffic according to group membership and source 1384 filters. The imo_multicast_filter() KPI exists for this purpose. 1385 Transports which do not use multicast (SCTP, TCP) already reject 1386 multicast by default. Forwarding and receive performance may improve 1387 as a mutex acquisition is no longer needed in the ip_input() 1388 low-level input path. in_addmulti() and in_delmulti() are shimmed 1389 to new KPIs which exist to support SSM in-kernel. 1390 1391 For application developers, it is recommended that loopback of 1392 multicast datagrams be disabled for best performance, as this 1393 will still cause the lock to be taken for each looped-back 1394 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1395 be tuned to 0 to disable loopback by default; it defaults to 1 1396 to preserve the existing behaviour. 1397 1398 For systems administrators, to obtain best performance with 1399 multicast reception and multiple groups, it is always recommended 1400 that a card with a suitably precise hash filter is used. Hash 1401 collisions will still result in the lock being taken within the 1402 transport protocol input path to check group membership. 1403 1404 If deploying FreeBSD in an environment with IGMP snooping switches, 1405 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1406 enabled; this forces 224.0.0.0/24 group membership to be announced 1407 via IGMP. 1408 1409 The size of 'struct igmpstat' has changed; netstat needs to be 1410 recompiled to reflect this. 1411 Bump __FreeBSD_version to 800070. 1412 141320090309: 1414 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1415 updated to use it. This requires a buildworld/installworld in order to 1416 update the library and dependencies (usbconfig, etc). Its advisable to 1417 rebuild all ports which uses libusb. More specific directions are given 1418 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1419 libusb are no longer required and can be removed. 1420 142120090302: 1422 A workaround is committed to allow the creation of System V shared 1423 memory segment of size > 2 GB on the 64-bit architectures. 1424 Due to a limitation of the existing ABI, the shm_segsz member 1425 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1426 wrong for large segments. Note that limits must be explicitly 1427 raised to allow such segments to be created. 1428 142920090301: 1430 The layout of struct ifnet has changed, requiring a rebuild of all 1431 network device driver modules. 1432 143320090227: 1434 The /dev handling for the new USB stack has changed, a 1435 buildworld/installworld is required for libusb20. 1436 143720090223: 1438 The new USB2 stack has now been permanently moved in and all kernel and 1439 module names reverted to their previous values (eg, usb, ehci, ohci, 1440 ums, ...). The old usb stack can be compiled in by prefixing the name 1441 with the letter 'o', the old usb modules have been removed. 1442 Updating entry 20090216 for xorg and 20090215 for libmap may still 1443 apply. 1444 144520090217: 1446 The rc.conf(5) option if_up_delay has been renamed to 1447 defaultroute_delay to better reflect its purpose. If you have 1448 customized this setting in /etc/rc.conf you need to update it to 1449 use the new name. 1450 145120090216: 1452 xorg 7.4 wants to configure its input devices via hald which does not 1453 yet work with USB2. If the keyboard/mouse does not work in xorg then 1454 add 1455 Option "AllowEmptyInput" "off" 1456 to your ServerLayout section. This will cause X to use the configured 1457 kbd and mouse sections from your xorg.conf. 1458 145920090215: 1460 The GENERIC kernels for all architectures now default to the new USB2 1461 stack. No kernel config options or code have been removed so if a 1462 problem arises please report it and optionally revert to the old USB 1463 stack. If you are loading USB kernel modules or have a custom kernel 1464 that includes GENERIC then ensure that usb names are also changed over, 1465 eg uftdi -> usb2_serial_ftdi. 1466 1467 Older programs linked against the ports libusb 0.1 need to be 1468 redirected to the new stack's libusb20. /etc/libmap.conf can 1469 be used for this: 1470 # Map old usb library to new one for usb2 stack 1471 libusb-0.1.so.8 libusb20.so.1 1472 147320090209: 1474 All USB ethernet devices now attach as interfaces under the name ueN 1475 (eg. ue0). This is to provide a predictable name as vendors often 1476 change usb chipsets in a product without notice. 1477 147820090203: 1479 The ichsmb(4) driver has been changed to require SMBus slave 1480 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1481 All of the other SMBus controller drivers require left-justified 1482 slave addresses, so this change makes all the drivers provide the 1483 same interface. 1484 148520090201: 1486 INET6 statistics (struct ip6stat) was updated. 1487 netstat(1) needs to be recompiled. 1488 148920090119: 1490 NTFS has been removed from GENERIC kernel on amd64 to match 1491 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1492 will load ntfs.ko module automatically when NTFS support is 1493 actually needed, unless ntfs.ko is not installed or security 1494 level prohibits loading kernel modules. If either is the case, 1495 "options NTFS" has to be added into kernel config. 1496 149720090115: 1498 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1499 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1500 800061. User space tools that rely on the size of struct tcpcb in 1501 tcp_var.h (e.g. sockstat) need to be recompiled. 1502 150320081225: 1504 ng_tty(4) module updated to match the new TTY subsystem. 1505 Due to API change, user-level applications must be updated. 1506 New API support added to mpd5 CVS and expected to be present 1507 in next mpd5.3 release. 1508 150920081219: 1510 With __FreeBSD_version 800060 the makefs tool is part of 1511 the base system (it was a port). 1512 151320081216: 1514 The afdata and ifnet locks have been changed from mutexes to 1515 rwlocks, network modules will need to be re-compiled. 1516 151720081214: 1518 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1519 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1520 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1521 architecture and 40 bytes on 64-bit architecture. The userland 1522 applications "arp" and "ndp" have been updated accordingly. 1523 The output from "netstat -r" shows only routing entries and 1524 none of the L2 information. 1525 152620081130: 1527 __FreeBSD_version 800057 marks the switchover from the 1528 binary ath hal to source code. Users must add the line: 1529 1530 options AH_SUPPORT_AR5416 1531 1532 to their kernel config files when specifying: 1533 1534 device ath_hal 1535 1536 The ath_hal module no longer exists; the code is now compiled 1537 together with the driver in the ath module. It is now 1538 possible to tailor chip support (i.e. reduce the set of chips 1539 and thereby the code size); consult ath_hal(4) for details. 1540 154120081121: 1542 __FreeBSD_version 800054 adds memory barriers to 1543 <machine/atomic.h>, new interfaces to ifnet to facilitate 1544 multiple hardware transmit queues for cards that support 1545 them, and a lock-less ring-buffer implementation to 1546 enable drivers to more efficiently manage queueing of 1547 packets. 1548 154920081117: 1550 A new version of ZFS (version 13) has been merged to -HEAD. 1551 This version has zpool attribute "listsnapshots" off by 1552 default, which means "zfs list" does not show snapshots, 1553 and is the same as Solaris behavior. 1554 155520081028: 1556 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1557 155820081009: 1559 The uhci, ohci, ehci and slhci USB Host controller drivers have 1560 been put into separate modules. If you load the usb module 1561 separately through loader.conf you will need to load the 1562 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1563 controller add the following to loader.conf: 1564 1565 uhci_load="YES" 1566 ehci_load="YES" 1567 156820081009: 1569 The ABI used by the PMC toolset has changed. Please keep 1570 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1571 sync. 1572 157320081009: 1574 atapci kernel module now includes only generic PCI ATA 1575 driver. AHCI driver moved to ataahci kernel module. 1576 All vendor-specific code moved into separate kernel modules: 1577 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1578 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1579 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1580 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1581 158220080820: 1583 The TTY subsystem of the kernel has been replaced by a new 1584 implementation, which provides better scalability and an 1585 improved driver model. Most common drivers have been migrated to 1586 the new TTY subsystem, while others have not. The following 1587 drivers have not yet been ported to the new TTY layer: 1588 1589 PCI/ISA: 1590 cy, digi, rc, rp, sio 1591 1592 USB: 1593 ubser, ucycom 1594 1595 Line disciplines: 1596 ng_h4, ng_tty, ppp, sl, snp 1597 1598 Adding these drivers to your kernel configuration file shall 1599 cause compilation to fail. 1600 160120080818: 1602 ntpd has been upgraded to 4.2.4p5. 1603 160420080801: 1605 OpenSSH has been upgraded to 5.1p1. 1606 1607 For many years, FreeBSD's version of OpenSSH preferred DSA 1608 over RSA for host and user authentication keys. With this 1609 upgrade, we've switched to the vendor's default of RSA over 1610 DSA. This may cause upgraded clients to warn about unknown 1611 host keys even for previously known hosts. Users should 1612 follow the usual procedure for verifying host keys before 1613 accepting the RSA key. 1614 1615 This can be circumvented by setting the "HostKeyAlgorithms" 1616 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1617 command line. 1618 1619 Please note that the sequence of keys offered for 1620 authentication has been changed as well. You may want to 1621 specify IdentityFile in a different order to revert this 1622 behavior. 1623 162420080713: 1625 The sio(4) driver has been removed from the i386 and amd64 1626 kernel configuration files. This means uart(4) is now the 1627 default serial port driver on those platforms as well. 1628 1629 To prevent collisions with the sio(4) driver, the uart(4) driver 1630 uses different names for its device nodes. This means the 1631 onboard serial port will now most likely be called "ttyu0" 1632 instead of "ttyd0". You may need to reconfigure applications to 1633 use the new device names. 1634 1635 When using the serial port as a boot console, be sure to update 1636 /boot/device.hints and /etc/ttys before booting the new kernel. 1637 If you forget to do so, you can still manually specify the hints 1638 at the loader prompt: 1639 1640 set hint.uart.0.at="isa" 1641 set hint.uart.0.port="0x3F8" 1642 set hint.uart.0.flags="0x10" 1643 set hint.uart.0.irq="4" 1644 boot -s 1645 164620080609: 1647 The gpt(8) utility has been removed. Use gpart(8) to partition 1648 disks instead. 1649 165020080603: 1651 The version that Linuxulator emulates was changed from 2.4.2 1652 to 2.6.16. If you experience any problems with Linux binaries 1653 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1654 if it fixes the problem contact emulation mailing list. 1655 165620080525: 1657 ISDN4BSD (I4B) was removed from the src tree. You may need to 1658 update a your kernel configuration and remove relevant entries. 1659 166020080509: 1661 I have checked in code to support multiple routing tables. 1662 See the man pages setfib(1) and setfib(2). 1663 This is a hopefully backwards compatible version, 1664 but to make use of it you need to compile your kernel 1665 with options ROUTETABLES=2 (or more up to 16). 1666 166720080420: 1668 The 802.11 wireless support was redone to enable multi-bss 1669 operation on devices that are capable. The underlying device 1670 is no longer used directly but instead wlanX devices are 1671 cloned with ifconfig. This requires changes to rc.conf files. 1672 For example, change: 1673 ifconfig_ath0="WPA DHCP" 1674 to 1675 wlans_ath0=wlan0 1676 ifconfig_wlan0="WPA DHCP" 1677 see rc.conf(5) for more details. In addition, mergemaster of 1678 /etc/rc.d is highly recommended. Simultaneous update of userland 1679 and kernel wouldn't hurt either. 1680 1681 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1682 modules were merged into the base wlan module. All references 1683 to these modules (e.g. in kernel config files) must be removed. 1684 168520080408: 1686 psm(4) has gained write(2) support in native operation level. 1687 Arbitrary commands can be written to /dev/psm%d and status can 1688 be read back from it. Therefore, an application is responsible 1689 for status validation and error recovery. It is a no-op in 1690 other operation levels. 1691 169220080312: 1693 Support for KSE threading has been removed from the kernel. To 1694 run legacy applications linked against KSE libmap.conf may 1695 be used. The following libmap.conf may be used to ensure 1696 compatibility with any prior release: 1697 1698 libpthread.so.1 libthr.so.1 1699 libpthread.so.2 libthr.so.2 1700 libkse.so.3 libthr.so.3 1701 170220080301: 1703 The layout of struct vmspace has changed. This affects libkvm 1704 and any executables that link against libkvm and use the 1705 kvm_getprocs() function. In particular, but not exclusively, 1706 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1707 The effects are minimal, but it's advisable to upgrade world 1708 nonetheless. 1709 171020080229: 1711 The latest em driver no longer has support in it for the 1712 82575 adapter, this is now moved to the igb driver. The 1713 split was done to make new features that are incompatible 1714 with older hardware easier to do. 1715 171620080220: 1717 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1718 likewise the kernel option is now GEOM_LINUX_LVM. 1719 172020080211: 1721 The default NFS mount mode has changed from UDP to TCP for 1722 increased reliability. If you rely on (insecurely) NFS 1723 mounting across a firewall you may need to update your 1724 firewall rules. 1725 172620080208: 1727 Belatedly note the addition of m_collapse for compacting 1728 mbuf chains. 1729 173020080126: 1731 The fts(3) structures have been changed to use adequate 1732 integer types for their members and so to be able to cope 1733 with huge file trees. The old fts(3) ABI is preserved 1734 through symbol versioning in libc, so third-party binaries 1735 using fts(3) should still work, although they will not take 1736 advantage of the extended types. At the same time, some 1737 third-party software might fail to build after this change 1738 due to unportable assumptions made in its source code about 1739 fts(3) structure members. Such software should be fixed 1740 by its vendor or, in the worst case, in the ports tree. 1741 FreeBSD_version 800015 marks this change for the unlikely 1742 case that a portable fix is impossible. 1743 174420080123: 1745 To upgrade to -current after this date, you must be running 1746 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1747 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1748 174920071128: 1750 The ADAPTIVE_GIANT kernel option has been retired because its 1751 functionality is the default now. 1752 175320071118: 1754 The AT keyboard emulation of sunkbd(4) has been turned on 1755 by default. In order to make the special symbols of the Sun 1756 keyboards driven by sunkbd(4) work under X these now have 1757 to be configured the same way as Sun USB keyboards driven 1758 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1759 1760 Option "XkbLayout" "us" 1761 Option "XkbRules" "xorg" 1762 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1763 176420071024: 1765 It has been decided that it is desirable to provide ABI 1766 backwards compatibility to the FreeBSD 4/5/6 versions of the 1767 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1768 broken with the introduction of PCI domain support (see the 1769 20070930 entry). Unfortunately, this required the ABI of 1770 PCIOCGETCONF to be broken again in order to be able to 1771 provide backwards compatibility to the old version of that 1772 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1773 again. As for prominent ports this affects neither pciutils 1774 nor xorg-server this time, the hal port needs to be rebuilt 1775 however. 1776 177720071020: 1778 The misnamed kthread_create() and friends have been renamed 1779 to kproc_create() etc. Many of the callers already 1780 used kproc_start().. 1781 I will return kthread_create() and friends in a while 1782 with implementations that actually create threads, not procs. 1783 Renaming corresponds with version 800002. 1784 178520071010: 1786 RELENG_7 branched. 1787 1788COMMON ITEMS: 1789 1790 General Notes 1791 ------------- 1792 Avoid using make -j when upgrading. While generally safe, there are 1793 sometimes problems using -j to upgrade. If your upgrade fails with 1794 -j, please try again without -j. From time to time in the past there 1795 have been problems using -j with buildworld and/or installworld. This 1796 is especially true when upgrading between "distant" versions (eg one 1797 that cross a major release boundary or several minor releases, or when 1798 several months have passed on the -current branch). 1799 1800 Sometimes, obscure build problems are the result of environment 1801 poisoning. This can happen because the make utility reads its 1802 environment when searching for values for global variables. To run 1803 your build attempts in an "environmental clean room", prefix all make 1804 commands with 'env -i '. See the env(1) manual page for more details. 1805 1806 When upgrading from one major version to another it is generally best 1807 to upgrade to the latest code in the currently installed branch first, 1808 then do an upgrade to the new branch. This is the best-tested upgrade 1809 path, and has the highest probability of being successful. Please try 1810 this approach before reporting problems with a major version upgrade. 1811 1812 ZFS notes 1813 --------- 1814 When upgrading the boot ZFS pool to a new version, always follow 1815 these two steps: 1816 1817 1.) recompile and reinstall the ZFS boot loader and boot block 1818 (this is part of "make buildworld" and "make installworld") 1819 1820 2.) update the ZFS boot block on your boot drive 1821 1822 The following example updates the ZFS boot block on the first 1823 partition (freebsd-boot) of a GPT partitioned drive ad0: 1824 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 1825 1826 Non-boot pools do not need these updates. 1827 1828 To build a kernel 1829 ----------------- 1830 If you are updating from a prior version of FreeBSD (even one just 1831 a few days old), you should follow this procedure. It is the most 1832 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1833 1834 make kernel-toolchain 1835 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1836 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1837 1838 To test a kernel once 1839 --------------------- 1840 If you just want to boot a kernel once (because you are not sure 1841 if it works, or if you want to boot a known bad kernel to provide 1842 debugging information) run 1843 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1844 nextboot -k testkernel 1845 1846 To just build a kernel when you know that it won't mess you up 1847 -------------------------------------------------------------- 1848 This assumes you are already running a CURRENT system. Replace 1849 ${arch} with the architecture of your machine (e.g. "i386", 1850 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1851 1852 cd src/sys/${arch}/conf 1853 config KERNEL_NAME_HERE 1854 cd ../compile/KERNEL_NAME_HERE 1855 make depend 1856 make 1857 make install 1858 1859 If this fails, go to the "To build a kernel" section. 1860 1861 To rebuild everything and install it on the current system. 1862 ----------------------------------------------------------- 1863 # Note: sometimes if you are running current you gotta do more than 1864 # is listed here if you are upgrading from a really old current. 1865 1866 <make sure you have good level 0 dumps> 1867 make buildworld 1868 make kernel KERNCONF=YOUR_KERNEL_HERE 1869 [1] 1870 <reboot in single user> [3] 1871 mergemaster -p [5] 1872 make installworld 1873 mergemaster -i [4] 1874 make delete-old [6] 1875 <reboot> 1876 1877 1878 To cross-install current onto a separate partition 1879 -------------------------------------------------- 1880 # In this approach we use a separate partition to hold 1881 # current's root, 'usr', and 'var' directories. A partition 1882 # holding "/", "/usr" and "/var" should be about 2GB in 1883 # size. 1884 1885 <make sure you have good level 0 dumps> 1886 <boot into -stable> 1887 make buildworld 1888 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1889 <maybe newfs current's root partition> 1890 <mount current's root partition on directory ${CURRENT_ROOT}> 1891 make installworld DESTDIR=${CURRENT_ROOT} 1892 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1893 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1894 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1895 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1896 <reboot into current> 1897 <do a "native" rebuild/install as described in the previous section> 1898 <maybe install compatibility libraries from ports/misc/compat*> 1899 <reboot> 1900 1901 1902 To upgrade in-place from stable to current 1903 ---------------------------------------------- 1904 <make sure you have good level 0 dumps> 1905 make buildworld [9] 1906 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1907 [1] 1908 <reboot in single user> [3] 1909 mergemaster -p [5] 1910 make installworld 1911 mergemaster -i [4] 1912 make delete-old [6] 1913 <reboot> 1914 1915 Make sure that you've read the UPDATING file to understand the 1916 tweaks to various things you need. At this point in the life 1917 cycle of current, things change often and you are on your own 1918 to cope. The defaults can also change, so please read ALL of 1919 the UPDATING entries. 1920 1921 Also, if you are tracking -current, you must be subscribed to 1922 freebsd-current@freebsd.org. Make sure that before you update 1923 your sources that you have read and understood all the recent 1924 messages there. If in doubt, please track -stable which has 1925 much fewer pitfalls. 1926 1927 [1] If you have third party modules, such as vmware, you 1928 should disable them at this point so they don't crash your 1929 system on reboot. 1930 1931 [3] From the bootblocks, boot -s, and then do 1932 fsck -p 1933 mount -u / 1934 mount -a 1935 cd src 1936 adjkerntz -i # if CMOS is wall time 1937 Also, when doing a major release upgrade, it is required that 1938 you boot into single user mode to do the installworld. 1939 1940 [4] Note: This step is non-optional. Failure to do this step 1941 can result in a significant reduction in the functionality of the 1942 system. Attempting to do it by hand is not recommended and those 1943 that pursue this avenue should read this file carefully, as well 1944 as the archives of freebsd-current and freebsd-hackers mailing lists 1945 for potential gotchas. The -U option is also useful to consider. 1946 See mergemaster(8) for more information. 1947 1948 [5] Usually this step is a noop. However, from time to time 1949 you may need to do this if you get unknown user in the following 1950 step. It never hurts to do it all the time. You may need to 1951 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1952 install) after the buildworld before this step if you last updated 1953 from [78]-stable or 9-stable before 20130430. 1954 1955 [6] This only deletes old files and directories. Old libraries 1956 can be deleted by "make delete-old-libs", but you have to make 1957 sure that no program is using those libraries anymore. 1958 1959 [8] In order to have a kernel that can run the 4.x binaries needed to 1960 do an installworld, you must include the COMPAT_FREEBSD4 option in 1961 your kernel. Failure to do so may leave you with a system that is 1962 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 1963 required to run the 5.x binaries on more recent kernels. And so on 1964 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 1965 1966 Make sure that you merge any new devices from GENERIC since the 1967 last time you updated your kernel config file. 1968 1969 [9] When checking out sources, you must include the -P flag to have 1970 cvs prune empty directories. 1971 1972 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1973 "?=" instead of the "=" assignment operator, so that buildworld can 1974 override the CPUTYPE if it needs to. 1975 1976 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1977 not on the command line, or in /etc/make.conf. buildworld will 1978 warn if it is improperly defined. 1979FORMAT: 1980 1981This file contains a list, in reverse chronological order, of major 1982breakages in tracking -current. It is not guaranteed to be a complete 1983list of such breakages, and only contains entries since October 10, 2007. 1984If you need to see UPDATING entries from before that date, you will need 1985to fetch an UPDATING file from an older FreeBSD release. 1986 1987Copyright information: 1988 1989Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 1990 1991Redistribution, publication, translation and use, with or without 1992modification, in full or in part, in any form or format of this 1993document are permitted without further permission from the author. 1994 1995THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1996IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1997WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1998DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1999INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2000(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2001SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2002HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2003STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 2004IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2005POSSIBILITY OF SUCH DAMAGE. 2006 2007Contact Warner Losh if you have any questions about your use of 2008this document. 2009 2010$FreeBSD: releng/9.3/UPDATING 308205 2016-11-02 07:24:34Z delphij $ 2011