UPDATING revision 306942
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 1420161010 p48 FreeBSD-SA-16:28.bind 15 FreeBSD-SA-16:29.bspatch 16 FreeBSD-SA-16:30.portsnap 17 18 Fix BIND remote Denial of Service vulnerability. [SA-16:28] 19 20 Fix bspatch heap overflow vulnerability. [SA-16:29] 21 22 Fix multiple portsnap vulnerabilities. [SA-16:30] 23 2420160926 p47 FreeBSD-SA-16:26.openssl [revised] 25 26 Fix OpenSSL regression introduced in SA-16:26. 27 2820160923 p46 FreeBSD-SA-16:26.openssl 29 30 Fix multiple OpenSSL vulnerabilitites. 31 3220160725 p45 FreeBSD-SA-16:25.bspatch 33 FreeBSD-EN-16:09.freebsd-update 34 35 Fix bspatch heap overflow vulnerability. [SA-16:25] 36 37 Fix freebsd-update(8) support of FreeBSD 11.0 release 38 distribution. [EN-16:09] 39 4020160604 p44 FreeBSD-SA-16:24.ntp 41 42 Fix multiple vulnerabilities of ntp. 43 4420160531 p43 FreeBSD-SA-16:20.linux 45 FreeBSD-SA-16:21.43bsd 46 FreeBSD-SA-16:22.libarchive 47 FreeBSD-SA-16:23.libarchive 48 49 Fix kernel stack disclosure in Linux compatibility layer. [SA-16:20] 50 Fix kernel stack disclosure in 4.3BSD compatibility layer. [SA-16:21] 51 Fix directory traversal in cpio(1). [SA-16:22] 52 Fix buffer overflow in libarchive(3). [SA-16:23] 53 5420160517 p42 FreeBSD-SA-16:18.atkbd 55 56 Fix buffer overflow in keyboard driver. [SA-16:18] 57 5820160504 p41 FreeBSD-SA-16:17.openssl 59 FreeBSD-EN-16:08.zfs 60 61 Fix multiple OpenSSL vulnerabilitites. [SA-16:17] 62 63 Fix memory leak in ZFS. [EN-16:08] 64 6520160429 p40 FreeBSD-SA-16:16.ntp 66 67 Fix multiple vulnerabilities of ntp. 68 6920160316 p39 FreeBSD-SA-16:14.openssh-xauth 70 FreeBSD-SA-16:15.sysarch 71 72 Fix OpenSSH xauth(1) command injection. [SA-16:14] 73 Fix incorrect argument validation in sysarch(2). [SA-16:15] 74 7520160310 p38 FreeBSD-SA-16:13.bind 76 FreeBSD-SA-16:12.openssl [revised] 77 78 Fix multiple vulnerabilities of BIND. [SA-16:13] 79 80 Fix a regression with OpenSSL patch. [SA-16:12] 81 8220160303 p37 FreeBSD-SA-16:12.openssl 83 84 Fix multiple vulnerabilities of OpenSSL. 85 8620160130 p36 FreeBSD-SA-16:11.openssl 87 88 Fix OpenSSL SSLv2 ciphersuite downgrade vulnerability. [SA-16:11] 89 9020160127 p35 FreeBSD-SA-16:08.bind 91 FreeBSD-SA-16:09.ntp 92 FreeBSD-SA-16:10.linux 93 94 Fix BIND remote denial of service vulnerability. [SA-16:08] 95 96 Fix multiple vulnerabilities of ntp. [SA-16:09] 97 98 Fix Linux compatibility layer issetugid(2) system call 99 vulnerability. [SA-16:10] 100 10120160114 p34 FreeBSD-SA-16:07.openssh 102 103 Fix OpenSSH client information leak. [SA-16:07] 104 10520160114 p33 FreeBSD-EN-16:02.pf 106 FreeBSD-EN-16:03.yplib 107 FreeBSD-SA-16:01.sctp 108 FreeBSD-SA-16:02.ntp 109 FreeBSD-SA-16:03.linux 110 FreeBSD-SA-16:04.linux 111 FreeBSD-SA-16:05.tcp 112 FreeBSD-SA-16:06.bsnmpd 113 114 Fix pf(4) generating bad TCP checksums. [EN-16:02] 115 Fix infinite loop in YP/NIS client library. [EN-16:03] 116 Fix remote denial of service in SCTP. [SA-16:01] 117 Update NTP to 4.2.8p5. [SA-16:02] 118 Fix kernel memory diclosure in Linux compatibility layer. [SA-16:03] 119 Fix kernel memory overwrite in Linux compatibility layer. [SA-16:04] 120 Fix crash in TCP MD5 signatures. [SA-16:05] 121 Fix insecure default permissions for snmpd.config. [SA-16:06] 122 12320151216 p32 FreeBSD-SA-15:27.bind 124 Fix BIND remote denial of service vulnerability. [SA-15:27] 125 12620151205 p31 FreeBSD-SA-15:26.openssl 127 128 Fix OpenSSL X509_ATTRIBUTE memory leak. [SA-15:26] 129 13020151104 p30 FreeBSD-SA-15:25.ntp [revised] 131 FreeBSD-EN-15:19.kqueue 132 FreeBSD-EN-15:20.vm 133 134 Fix regression of ntpq(8) utility exiting due to trap 6 in 135 9.3-RELEASE-p29. [SA-15:25] 136 137 Fix regression in ntpd(8) lacking support for RAWDCF reference 138 clock in 9.3-RELEASE-p29. [SA-15:25] 139 140 Fix kqueue write events never fired for files greater 2GB. [EN-15:19] 141 142 Fix applications exiting due to segmentation violation on a correct 143 memory address. [EN-15:20] 144 14520151026: p29 FreeBSD-SA-15:25.ntp 146 147 Fix multiple NTP vulnerabilities. New NTP version is 4.2.8p4. 148 149 The configuration file syntax has been changed, thus mergemaster 150 run is recommended. Now the "kod" parameter requires "limited" 151 parameter. If the ntp.conf is not updated, the ntpd will run 152 successfully, but with KoD disabled. 153 15420151002: p28 FreeBSD-SA-15:24.rpcbind [revised] 155 Revised patch to address a regression that prevents NIS from working. 156 15720150929: p27 FreeBSD-SA-15:24.rpcbind 158 159 Fix rpcbind(8) remote denial of service. [SA-15:24] 160 16120150916: p26 FreeBSD-EN-15:18.pkg 162 163 Implement pubkey support for pkg(7) bootstrap. [EN-15:18] 164 16520150902: p25 FreeBSD-SA-15:23.bind 166 167 Fix BIND remote denial of service vulnerability. [SA-15:23] 168 16920150825: p24 FreeBSD-SA-15:21.amd64 170 FreeBSD-SA-15:22.openssh 171 FreeBSD-EN-15:15.pkg 172 173 Fix local privilege escalation in IRET handler. [SA-15:21] 174 175 Fix OpenSSH multiple vulnerabilities. [SA-15:22] 176 177 Fix insufficient check of unsupported pkg(7) signature methods. 178 [EN-15:15] 179 18020150818: p23 FreeBSD-SA-15:20.expat 181 182 Fix multiple integer overflows in expat (libbsdxml) XML parser. 183 [SA-15:20] 184 18520150805: p22 FreeBSD-SA-15:19.routed 186 187 Fix routed remote denial of service vulnerability. 188 18920150728: p21 FreeBSD-SA-15:15.tcp 190 FreeBSD-SA-15:16.openssh 191 FreeBSD-SA-15:17.bind 192 193 Fix resource exhaustion in TCP reassembly. [SA-15:15] 194 195 Fix OpenSSH multiple vulnerabilities. [SA-15:16] 196 197 Fix BIND remote denial of service vulnerability. [SA-15:17] 198 19920150721: p20 FreeBSD-SA-15:13.tcp 200 201 Fix resource exhaustion due to sessions stuck in LAST_ACK state. 202 [SA-15:13] 203 20420150707: p19 FreeBSD-SA-15:11.bind 205 Fix BIND resolver remote denial of service when validating. 206 20720150630: p18 FreeBSD-EN-15:08.sendmail [revised] 208 FreeBSD-EN-15:09.xlocale 209 210 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 211 212 Fix inconsistency between locale and rune locale states. 213 [EN-15:09] 214 21520150618: p17 FreeBSD-EN-15:08.sendmail 216 Improvements to sendmail TLS/DH interoperability. [EN-15:08] 217 21820150612: p16 FreeBSD-SA-15:10.openssl 219 Fix multiple vulnerabilities in OpenSSL. [SA-15:10] 220 22120150609: p15 FreeBSD-EN-15:06.file 222 223 Updated base system file(1) to 5.22 to address multiple denial 224 of service issues. 225 22620150513: p14 FreeBSD-EN-15:04.freebsd-update 227 228 Fix bug with freebsd-update(8) that does not ensure the previous 229 upgrade was completed. [EN-15:04] 230 23120150407: p13 FreeBSD-SA-15:04.igmp [revised] 232 FreeBSD-SA-15:07.ntp 233 FreeBSD-SA-15:09.ipv6 234 235 Improved patch for SA-15:04.igmp. 236 237 Fix multiple vulnerabilities of ntp. [SA-15:07] 238 239 Fix Denial of Service with IPv6 Router Advertisements. [SA-15:09] 240 24120150320: p12 242 Fix patch for SA-15:06.openssl. 243 24420150319: p11 FreeBSD-SA-15:06.openssl 245 Fix multiple vulnerabilities in OpenSSL. [SA-15:06] 246 24720150225: p10 FreeBSD-SA-15:04.igmp 248 FreeBSD-SA-15:05.bind 249 FreeBSD-EN-15:01.vt 250 FreeBSD-EN-15:02.openssl 251 FreeBSD-EN-15:03.freebsd-update 252 253 Fix integer overflow in IGMP protocol. [SA-15:04] 254 255 Fix BIND remote denial of service vulnerability. [SA-15:05] 256 257 Fix vt(4) crash with improper ioctl parameters. [EN-15:01] 258 259 Updated base system OpenSSL to 0.9.8zd. [EN-15:02] 260 261 Fix freebsd-update libraries update ordering issue. [EN-15:03] 262 26320150127: p9 FreeBSD-SA-15:02.kmem 264 FreeBSD-SA-15:03.sctp 265 266 Fix SCTP SCTP_SS_VALUE kernel memory corruption and disclosure 267 vulnerability. [SA-15:02] 268 269 Fix SCTP stream reset vulnerability. [SA-15:03] 270 27120150114: p8 FreeBSD-SA-15:01.openssl 272 Fix multiple vulnerabilities in OpenSSL. [SA-15:01] 273 27420141223: p7 FreeBSD-SA-14:31.ntp 275 FreeBSD-EN-14:13.freebsd-update 276 277 Fix multiple vulnerabilities in NTP suite. [SA-14:31] 278 Fix directory deletion issue in freebsd-update. [EN-14:13] 279 28020141210: p6 FreeBSD-SA-14:28.file 281 FreeBSD-SA-14:29.bind 282 283 Fix multiple vulnerabilities in file(1) and libmagic(3). 284 [SA-14:28] 285 286 Fix BIND remote denial of service vulnerability. [SA-14:29] 287 28820141104: p5 FreeBSD-SA-14:25.setlogin 289 FreeBSD-SA-14:26.ftp 290 FreeBSD-EN-14:12.zfs 291 292 Fix kernel stack disclosure in setlogin(2) / getlogin(2). 293 [SA-14:25] 294 295 Fix remote command execution in ftp(1). [SA-14:26] 296 297 Fix NFSv4 and ZFS cache consistency issue. [EN-14:12] 298 29920141022: p4 FreeBSD-EN-14:10.tzdata 300 FreeBSD-EN-14:11.crypt 301 302 Time zone data file update. [EN-14:10] 303 304 Change crypt(3) default hashing algorithm back to DES. [EN-14:11] 305 30620141021: p3 FreeBSD-SA-14:20.rtsold 307 FreeBSD-SA-14:21.routed 308 FreeBSD-SA-14:22.namei 309 FreeBSD-SA-14:23.openssl 310 311 Fix rtsold(8) remote buffer overflow vulnerability. [SA-14:20] 312 313 Fix routed(8) remote denial of service vulnerability. [SA-14:21] 314 315 Fix memory leak in sandboxed namei lookup. [SA-14:22] 316 317 Fix OpenSSL multiple vulnerabilities. [SA-14:23] 318 31920140916: p2 FreeBSD-SA-14:19.tcp 320 Fix Denial of Service in TCP packet processing. [SA-14:19] 321 32220140909: p1 FreeBSD-SA-14:18.openssl 323 Fix OpenSSL multiple vulnerabilities. [SA-14:18] 324 32520140716: 326 9.3-RELEASE. 327 32820140608: 329 On i386 and amd64 systems, the onifconsole flag is now set by default 330 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 331 as a login TTY if it is set in the bootloader as an active kernel 332 console. No changes in behavior should result otherwise. To revert to 333 the previous behavior, set ttyu0 to "off" in /etc/ttys. 334 33520140512: 336 Clang and llvm have been upgraded to 3.4.1 release. 337 33820140321: 339 Clang and llvm have been upgraded to 3.4 release. 340 34120140216: 342 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 343 been deprecated and will not be part of FreeBSD 11.0 and later 344 releases. If you use this driver, please consider switching to 345 the nfe(4) driver instead. 346 34720131216: 348 The behavior of gss_pseudo_random() for the krb5 mechanism 349 has changed, for applications requesting a longer random string 350 than produced by the underlying enctype's pseudo-random() function. 351 In particular, the random string produced from a session key of 352 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 353 be different at the 17th octet and later, after this change. 354 The counter used in the PRF+ construction is now encoded as a 355 big-endian integer in accordance with RFC 4402. 356 __FreeBSD_version is bumped to 902505. 357 35820130930: 359 9.2-RELEASE. 360 36120130823: 362 Behavior of devfs rules path matching has been changed. 363 Pattern is now always matched against fully qualified devfs 364 path and slash characters must be explicitly matched by 365 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 366 subdirectories must be reviewed. 367 36820130705: 369 hastctl(8)'s `status' command output changed to terse one-liner format. 370 Scripts using this should switch to `list' command or be rewritten. 371 37220130618: 373 Fix a bug that allowed a tracing process (e.g. gdb) to write 374 to a memory-mapped file in the traced process's address space 375 even if neither the traced process nor the tracing process had 376 write access to that file. 377 37820130605: 379 Added ZFS TRIM support which is enabled by default. To disable 380 ZFS TRIM support set vfs.zfs.trim.enabled=0 in loader.conf. 381 382 Creating new ZFS pools and adding new devices to existing pools 383 first performs a full device level TRIM which can take a significant 384 amount of time. The sysctl vfs.zfs.vdev.trim_on_init can be set to 0 385 to disable this behaviour. 386 387 ZFS TRIM requires the underlying device support BIO_DELETE which 388 is currently provided by methods such as ATA TRIM and SCSI UNMAP 389 via CAM, which are typically supported by SSD's. 390 391 Stats for ZFS TRIM can be monitored by looking at the sysctl's 392 under kstat.zfs.misc.zio_trim. 393 39420130524: 395 `list' command has been added to hastctl(8). For now, it is full 396 equivalent of `status' command. 397 WARNING: in the near future the output of hastctl's status command 398 will change to more terse format. If you use `hastctl status' 399 for parsing in your scripts, switch to `hastctl list'. 400 40120130430: 402 The mergemaster command now uses the default MAKEOBJDIRPREFIX 403 rather than creating it's own in the temporary directory in 404 order allow access to bootstrapped versions of tools such as 405 install and mtree. When upgrading from version of FreeBSD where 406 the install command does not support -l, you will need to 407 install a new mergemaster command if mergemaster -p is required. 408 This can be accomplished with the command (cd src/usr.sbin/mergemaster 409 && make install). 410 411 Due to the use of the new -l option to install(1) during build 412 and install, you must take care not to directly set the INSTALL 413 make variable in your /etc/make.conf, /etc/src.conf, or on the 414 command line. If you wish to use the -C flag for all installs 415 you may be able to add INSTALL+=-C to /etc/make.conf or 416 /etc/src.conf. 417 41820130429: 419 Fix a bug that allows NFS clients to issue READDIR on files. 420 42120130315: 422 The install(1) option -M has changed meaning and now takes an 423 argument that is a file or path to append logs to. In the 424 unlikely event that -M was the last option on the command line 425 and the command line contained at least two files and a target 426 directory the first file will have logs appended to it. The -M 427 option served little practical purpose in the last decade so it's 428 used expected to be extremely rare. 429 43020130225: 431 A new compression method (lz4) has been merged to. Please refer to 432 zpool-features(7) for more information. 433 434 Please refer to the "ZFS notes" section of this file for information 435 on upgrading boot ZFS pools. 436 43720121224: 438 The VFS KBI was changed with the merge of several nullfs 439 optimizations and fixes. All filesystem modules must be 440 recompiled. 441 44220121218: 443 With the addition of auditdistd(8), a new auditdistd user is now 444 depended on during installworld. "mergemaster -p" can be used to add 445 the user prior to installworld, as documented in the handbook. 446 44720121205: 448 9.1-RELEASE. 449 45020121129: 451 A new version of ZFS (pool version 5000) has been merged to 9-STABLE. 452 Starting with this version the old system of ZFS pool versioning 453 is superseded by "feature flags". This concept enables forward 454 compatibility against certain future changes in functionality of ZFS 455 pools. The first two read-only compatible "feature flags" for ZFS 456 pools are "com.delphix:async_destroy" and "com.delphix:empty_bpobj". 457 For more information read the new zpool-features(7) manual page. 458 Please refer to the "ZFS notes" section of this file for information 459 on upgrading boot ZFS pools. 460 46120121114: 462 The commit introducing bsd.compiler.mk breaks the traditional 463 building of kernels before this point. Add -m ${SRC}/share/mk 464 (for the right value of SRC) to your command lines to work 465 around; update your useland to a point after this; or use the 466 buildkernel/installkernel top-level targets. See also 20120829. 467 46820121102: 469 The IPFIREWALL_FORWARD kernel option has been removed. Its 470 functionality now turned on by default. 471 47220120913: 473 The random(4) support for the VIA hardware random number 474 generator (`PADLOCK') is no longer enabled unconditionally. 475 Add the PADLOCK_RNG option in the custom kernel config if 476 needed. The GENERIC kernels on i386 and amd64 do include the 477 option, so the change only affects the custom kernel 478 configurations. 479 48020120829: 481 The amd64 kernel now uses xsetbv, xrstor instructions. To compile with 482 the traditional method, you must update your system with an installworld 483 before the kernel will build. The documented make buildkernel/installkernel 484 interfaces (coupled with fresh make kernel-toolchain) continue to work. 485 48620120727: 487 The sparc64 ZFS loader has been changed to no longer try to auto- 488 detect ZFS providers based on diskN aliases but now requires these 489 to be explicitly listed in the OFW boot-device environment variable. 490 49120120422: 492 Now unix domain sockets behave "as expected" on nullfs(5). Previously 493 nullfs(5) did not pass through all behaviours to the underlying layer, 494 as a result if we bound to a socket on the lower layer we could connect 495 only to the lower path; if we bound to the upper layer we could connect 496 only to the upper path. The new behavior is one can connect to both the 497 lower and the upper paths regardless what layer path one binds to. 498 49920120109: 500 The acpi_wmi(4) status device /dev/wmistat has been renamed to 501 /dev/wmistat0. 502 50320120106: 504 A new VOP_ADVISE() was added to support posix_fadvise(2). All 505 filesystem modules must be recompiled. 506 50720120106: 508 The interface of the VOP_VPTOCNP(9) changed, now the returned 509 vnode shall be referenced, previously it was required to be 510 only held. All in-tree filesystems are converted. 511 51220120106: 513 9.0-RELEASE. 514 51520111101: 516 The broken amd(4) driver has been replaced with esp(4) in the amd64, 517 i386 and pc98 GENERIC kernel configuration files. 518 51920110913: 520 This commit modifies vfs_register() so that it uses a hash 521 calculation to set vfc_typenum, which is enabled by default. 522 The first time a system is booted after this change, the 523 vfc_typenum values will change for all file systems. The 524 main effect of this is a change to the NFS server file handles 525 for file systems that use vfc_typenum in their fsid, such as ZFS. 526 It will, however, prevent vfc_typenum from changing when file 527 systems are loaded in a different order for subsequent reboots. 528 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 529 until you are ready to remount all NFS clients after a reboot. 530 53120110828: 532 Bump the shared library version numbers for libraries that 533 do not use symbol versioning, have changed the ABI compared 534 to stable/8 and which shared library version was not bumped. 535 Done as part of 9.0-RELEASE cycle. 536 53720110815: 538 During the merge of Capsicum features, the fget(9) KPI was modified. 539 This may require the rebuilding of out-of-tree device drivers -- 540 issues have been reported specifically with the nVidia device driver. 541 __FreeBSD_version is bumped to 900041. 542 543 Also, there is a period between 20110811 and 20110814 where the 544 special devices /dev/{stdin,stdout,stderr} did not work correctly. 545 Building world from a kernel during that window may not work. 546 54720110628: 548 The packet filter (pf) code has been updated to OpenBSD 4.5. 549 You need to update userland tools to be in sync with kernel. 550 This update breaks backward compatibility with earlier pfsync(4) 551 versions. Care must be taken when updating redundant firewall setups. 552 55320110608: 554 The following sysctls and tunables are retired on x86 platforms: 555 machdep.hlt_cpus 556 machdep.hlt_logical_cpus 557 The following sysctl is retired: 558 machdep.hyperthreading_allowed 559 The sysctls were supposed to provide a way to dynamically offline and 560 online selected CPUs on x86 platforms, but the implementation has not 561 been reliable especially with SCHED_ULE scheduler. 562 machdep.hyperthreading_allowed tunable is still available to ignore 563 hyperthreading CPUs at OS level. 564 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 565 where X is an APIC ID of a CPU. Be advised, though, that disabling 566 CPUs in non-uniform fashion will result in non-uniform topology and 567 may lead to sub-optimal system performance with SCHED_ULE, which is 568 a default scheduler. 569 57020110607: 571 cpumask_t type is retired and cpuset_t is used in order to describe 572 a mask of CPUs. 573 57420110531: 575 Changes to ifconfig(8) for dynamic address family detection mandate 576 that you are running a kernel of 20110525 or later. Make sure to 577 follow the update procedure to boot a new kernel before installing 578 world. 579 58020110513: 581 Support for sun4v architecture is officially dropped 582 58320110503: 584 Several KPI breaking changes have been committed to the mii(4) layer, 585 the PHY drivers and consequently some Ethernet drivers using mii(4). 586 This means that miibus.ko and the modules of the affected Ethernet 587 drivers need to be recompiled. 588 589 Note to kernel developers: Given that the OUI bit reversion problem 590 was fixed as part of these changes all mii(4) commits related to OUIs, 591 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 592 handling, no longer can be merged verbatim to stable/8 and previous 593 branches. 594 59520110430: 596 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 597 into their kernel configurations along with 'device pci'. 598 59920110427: 600 The default NFS client is now the new NFS client, so fstype "newnfs" 601 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 602 Although mounts via fstype "nfs" will usually work without userland 603 changes, it is recommended that the mount(8) and mount_nfs(8) 604 commands be rebuilt from sources and that a link to mount_nfs called 605 mount_oldnfs be created. The new client is compiled into the 606 kernel with "options NFSCL" and this is needed for diskless root 607 file systems. The GENERIC kernel configs have been changed to use 608 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 609 To use the regular/old client, you can "mount -t oldnfs ...". For 610 a diskless root file system, you must also include a line like: 611 612 vfs.root.mountfrom="oldnfs:" 613 614 in the boot/loader.conf on the root fs on the NFS server to make 615 a diskless root fs use the old client. 616 61720110424: 618 The GENERIC kernels for all architectures now default to the new 619 CAM-based ATA stack. It means that all legacy ATA drivers were 620 removed and replaced by respective CAM drivers. If you are using 621 ATA device names in /etc/fstab or other places, make sure to update 622 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 623 where 'Y's are the sequential numbers starting from zero for each type 624 in order of detection, unless configured otherwise with tunables, 625 see cam(4)). There will be symbolic links created in /dev/ to map 626 old adX devices to the respective adaY. They should provide basic 627 compatibility for file systems mounting in most cases, but they do 628 not support old user-level APIs and do not have respective providers 629 in GEOM. Consider using updated management tools with new device names. 630 631 It is possible to load devices ahci, ata, siis and mvs as modules, 632 but option ATA_CAM should remain in kernel configuration to make ata 633 module work as CAM driver supporting legacy ATA controllers. Device ata 634 still can be used in modular fashion (atacore + ...). Modules atadisk 635 and atapi* are not used and won't affect operation in ATA_CAM mode. 636 Note that to use CAM-based ATA kernel should include CAM devices 637 scbus, pass, da (or explicitly ada), cd and optionally others. All of 638 them are parts of the cam module. 639 640 ataraid(4) functionality is now supported by the RAID GEOM class. 641 To use it you can load geom_raid kernel module and use graid(8) tool 642 for management. Instead of /dev/arX device names, use /dev/raid/rX. 643 644 No kernel config options or code have been removed, so if a problem 645 arises, please report it and optionally revert to the old ATA stack. 646 In order to do it you can remove from the kernel config: 647 options ATA_CAM 648 device ahci 649 device mvs 650 device siis 651 , and instead add back: 652 device atadisk # ATA disk drives 653 device ataraid # ATA RAID drives 654 device atapicd # ATAPI CDROM drives 655 device atapifd # ATAPI floppy drives 656 device atapist # ATAPI tape drives 657 65820110423: 659 The default NFS server has been changed to the new server, which 660 was referred to as the experimental server. If you need to switch 661 back to the old NFS server, you must now put the "-o" option on 662 both the mountd and nfsd commands. This can be done using the 663 mountd_flags and nfs_server_flags rc.conf variables until an 664 update to the rc scripts is committed, which is coming soon. 665 66620110418: 667 The GNU Objective-C runtime library (libobjc), and other Objective-C 668 related components have been removed from the base system. If you 669 require an Objective-C library, please use one of the available ports. 670 67120110331: 672 ath(4) has been split into bus- and device- modules. if_ath contains 673 the HAL, the TX rate control and the network device code. if_ath_pci 674 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 675 contains the AHB glue. Users need to load both if_ath_pci and if_ath 676 in order to use ath on everything else. 677 678 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 679 need to load if_ath and if_ath_pci for ath(4) operation. 680 68120110314: 682 As part of the replacement of sysinstall, the process of building 683 release media has changed significantly. For details, please re-read 684 release(7), which has been updated to reflect the new build process. 685 68620110218: 687 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 688 is the last available version under GPLv2. It brings a number of new 689 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 690 4.1 and SSE 4.2), better support for powerpc64, a number of new 691 directives, and lots of other small improvements. See the ChangeLog 692 file in contrib/binutils for the full details. 693 69420110218: 695 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 696 compliant, and will now use half of hash for authentication. 697 This will break interoperability with all stacks (including all 698 actual FreeBSD versions) who implement 699 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 700 authentication). 701 The only workaround with such peers is to use another HMAC 702 algorithm for IPsec ("phase 2") authentication. 703 70420110207: 705 Remove the uio_yield prototype and symbol. This function has 706 been misnamed since it was introduced and should not be 707 globally exposed with this name. The equivalent functionality 708 is now available using kern_yield(curthread->td_user_pri). 709 The function remains undocumented. 710 71120110112: 712 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 713 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 714 for scalar sysctls is defined but disabled. Code that needs 715 UQUAD to pass the type checking that must compile on older 716 systems where the define is not present can check against 717 __FreeBSD_version >= 900030. 718 719 The system dialog(1) has been replaced with a new version previously 720 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 721 with the previous version, but the libdialog associated with it has 722 a largely incompatible API. As such, the original version of libdialog 723 will be kept temporarily as libodialog, until its base system consumers 724 are replaced or updated. Bump __FreeBSD_version to 900030. 725 72620110103: 727 If you are trying to run make universe on a -stable system, and you get 728 the following warning: 729 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 730 unknown. config(8) likely too old." 731 or something similar to it, then you must upgrade your -stable system 732 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 733 stable/8) or build the config from the latest stable/8 branch and 734 install it on your system. 735 736 Prior to this date, building a current universe on 8-stable system from 737 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 738 error in the first kernel build phase. A new config on those old 739 systems will fix that problem for older versions of -current. 740 74120101228: 742 The TCP stack has been modified to allow Khelp modules to interact with 743 it via helper hook points and store per-connection data in the TCP 744 control block. Bump __FreeBSD_version to 900029. User space tools that 745 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 746 be recompiled. 747 74820101114: 749 Generic IEEE 802.3 annex 31B full duplex flow control support has been 750 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 751 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 752 to take advantage of it instead of using custom implementations. This 753 means that these drivers now no longer unconditionally advertise 754 support for flow control but only do so if flow control is a selected 755 media option. This was implemented in the generic support that way in 756 order to allow flow control to be switched on and off via ifconfig(8) 757 with the PHY specific default to typically off in order to protect 758 from unwanted effects. Consequently, if you used flow control with 759 one of the above mentioned drivers you now need to explicitly enable 760 it, for example via: 761 ifconfig bge0 media auto mediaopt flowcontrol 762 763 Along with the above mentioned changes generic support for setting 764 1000baseT master mode also has been added and brgphy(4), ciphy(4), 765 e1000phy(4) as well as ip1000phy(4) have been converted to take 766 advantage of it. This means that these drivers now no longer take the 767 link0 parameter for selecting master mode but the master media option 768 has to be used instead, for example like in the following: 769 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 770 771 Selection of master mode now is also available with all other PHY 772 drivers supporting 1000baseT. 773 77420101111: 775 The TCP stack has received a significant update to add support for 776 modularised congestion control and generally improve the clarity of 777 congestion control decisions. Bump __FreeBSD_version to 900025. User 778 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 779 sockstat) need to be recompiled. 780 78120101002: 782 The man(1) utility has been replaced by a new version that no longer 783 uses /etc/manpath.config. Please consult man.conf(5) for how to 784 migrate local entries to the new format. 785 78620100928: 787 The copyright strings printed by login(1) and sshd(8) at the time of a 788 new connection have been removed to follow other operating systems and 789 upstream sshd. 790 79120100915: 792 A workaround for a fixed ld bug has been removed in kernel code, 793 so make sure that your system ld is built from sources after 794 revision 210245 from 2010-07-19 (r211583 if building head kernel 795 on stable/8, r211584 for stable/7; both from 2010-08-21). 796 A symptom of incorrect ld version is different addresses for 797 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 798 79920100913: 800 The $ipv6_prefer variable in rc.conf(5) has been split into 801 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 802 803 The $ip6addrctl_policy is a variable to choose a pre-defined 804 address selection policy set by ip6addrctl(8). A value 805 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 806 default is "AUTO". 807 808 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 809 flag (see an entry of 20090926) is set on an interface with no 810 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 811 security reason. If you want IPv6 link-local address on all 812 interfaces by default, set this to "YES". 813 814 The old ipv6_prefer="YES" is equivalent to 815 ipv6_activate_all_interfaces="YES" and 816 ip6addrctl_policy="ipv6_prefer". 817 81820100913: 819 DTrace has grown support for userland tracing. Due to this, DTrace is 820 now i386 and amd64 only. 821 dtruss(1) is now installed by default on those systems and a new 822 kernel module is needed for userland tracing: fasttrap. 823 No changes to your kernel config file are necessary to enable 824 userland tracing, but you might consider adding 'STRIP=' and 825 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 826 to have informative userland stack traces in DTrace (ustack). 827 82820100725: 829 The acpi_aiboost(4) driver has been removed in favor of the new 830 aibs(4) driver. You should update your kernel configuration file. 831 83220100722: 833 BSD grep has been imported to the base system and it is built by 834 default. It is completely BSD licensed, highly GNU-compatible, uses 835 less memory than its GNU counterpart and has a small codebase. 836 However, it is slower than its GNU counterpart, which is mostly 837 noticeable for larger searches, for smaller ones it is measurable 838 but not significant. The reason is complex, the most important factor 839 is that we lack a modern and efficient regex library and GNU 840 overcomes this by optimizing the searches internally. Future work 841 on improving the regex performance is planned, for the meantime, 842 users that need better performance, can build GNU grep instead by 843 setting the WITH_GNU_GREP knob. 844 84520100713: 846 Due to the import of powerpc64 support, all existing powerpc kernel 847 configuration files must be updated with a machine directive like this: 848 machine powerpc powerpc 849 850 In addition, an updated config(8) is required to build powerpc kernels 851 after this change. 852 85320100713: 854 A new version of ZFS (version 15) has been merged to -HEAD. 855 This version uses a python library for the following subcommands: 856 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 857 For full functionality of these commands the following port must 858 be installed: sysutils/py-zfs 859 86020100429: 861 'vm_page's are now hashed by physical address to an array of mutexes. 862 Currently this is only used to serialize access to hold_count. Over 863 time the page queue mutex will be peeled away. This changes the size 864 of pmap on every architecture. And requires all callers of vm_page_hold 865 and vm_page_unhold to be updated. 866 86720100402: 868 WITH_CTF can now be specified in src.conf (not recommended, there 869 are some problems with static executables), make.conf (would also 870 affect ports which do not use GNU make and do not override the 871 compile targets) or in the kernel config (via "makeoptions 872 WITH_CTF=yes"). 873 When WITH_CTF was specified there before this was silently ignored, 874 so make sure that WITH_CTF is not used in places which could lead 875 to unwanted behavior. 876 87720100311: 878 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 879 to allow 32-bit compatibility on non-x86 platforms. All kernel 880 configurations on amd64 and ia64 platforms using these options must 881 be modified accordingly. 882 88320100113: 884 The utmp user accounting database has been replaced with utmpx, 885 the user accounting interface standardized by POSIX. 886 Unfortunately the semantics of utmp and utmpx don't match, 887 making it practically impossible to support both interfaces. 888 The user accounting database is used by tools like finger(1), 889 last(1), talk(1), w(1) and ac(8). 890 891 All applications in the base system use utmpx. This means only 892 local binaries (e.g. from the ports tree) may still use these 893 utmp database files. These applications must be rebuilt to make 894 use of utmpx. 895 896 After the system has been upgraded, it is safe to remove the old 897 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 898 assuming their contents is of no importance anymore. Old wtmp 899 databases can only be used by last(1) and ac(8) after they have 900 been converted to the new format using wtmpcvt(1). 901 90220100108: 903 Introduce the kernel thread "deadlock resolver" (which can be enabled 904 via the DEADLKRES option, see NOTES for more details) and the 905 sleepq_type() function for sleepqueues. 906 90720091202: 908 The rc.firewall and rc.firewall6 were unified, and 909 rc.firewall6 and rc.d/ip6fw were removed. 910 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 911 variables are obsoleted. Instead, the following new rc 912 variables are added to rc.d/ipfw: 913 914 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 915 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 916 firewall_simple_onet_ipv6, firewall_trusted_ipv6 917 918 The meanings correspond to the relevant IPv4 variables. 919 92020091125: 921 8.0-RELEASE. 922 92320091113: 924 The default terminal emulation for syscons(4) has been changed 925 from cons25 to xterm on all platforms except pc98. This means 926 that the /etc/ttys file needs to be updated to ensure correct 927 operation of applications on the console. 928 929 The terminal emulation style can be toggled per window by using 930 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 931 options can be used to change the compile-time default back to 932 cons25. 933 934 To prevent graphical artifacts, make sure the TERM environment 935 variable is set to match the terminal emulation that is being 936 performed by syscons(4). 937 93820091109: 939 The layout of the structure ieee80211req_scan_result has changed. 940 Applications that require wireless scan results (e.g. ifconfig(8)) 941 from net80211 need to be recompiled. 942 943 Applications such as wpa_supplicant(8) may require a full world 944 build without using NO_CLEAN in order to get synchronized with the 945 new structure. 946 94720091025: 948 The iwn(4) driver has been updated to support the 5000 and 5150 series. 949 There's one kernel module for each firmware. Adding "device iwnfw" 950 to the kernel configuration file means including all three firmware 951 images inside the kernel. If you want to include just the one for 952 your wireless card, use the devices iwn4965fw, iwn5000fw or 953 iwn5150fw. 954 95520090926: 956 The rc.d/network_ipv6, IPv6 configuration script has been integrated 957 into rc.d/netif. The changes are the following: 958 959 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 960 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 961 Note that both variables need the "inet6" keyword at the head. 962 963 Do not set $ipv6_network_interfaces manually if you do not 964 understand what you are doing. It is not needed in most cases. 965 966 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 967 they are obsolete. 968 969 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 970 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 971 972 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 973 all configured interfaces have "inet6 accept_rtadv" in the 974 $ifconfig_IF_ipv6. These are for backward compatibility. 975 976 3. A new variable $ipv6_prefer has been added. If NO, IPv6 977 functionality of interfaces with no corresponding 978 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 979 and the default address selection policy of ip6addrctl(8) 980 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 981 Note that if you want to configure IPv6 functionality on the 982 disabled interfaces after boot, first you need to clear the flag by 983 using ifconfig(8) like: 984 985 ifconfig em0 inet6 -ifdisabled 986 987 If YES, the default address selection policy is set as 988 IPv6-preferred. 989 990 The default value of $ipv6_prefer is NO. 991 992 4. If your system need to receive Router Advertisement messages, 993 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 994 scripts automatically invoke rtsol(8) when the interface becomes 995 UP. The Router Advertisement messages are used for SLAAC 996 (State-Less Address AutoConfiguration). 997 99820090922: 999 802.11s D3.03 support was committed. This is incompatible with the 1000 previous code, which was based on D3.0. 1001 100220090912: 1003 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 1004 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 1005 control whether accepting Router Advertisement messages or not. 1006 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 1007 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 1008 The ifconfig(8) utility now supports these flags. 1009 101020090910: 1011 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 1012 mount(8) and -a option for df(1) to see them. 1013 101420090825: 1015 The old tunable hw.bus.devctl_disable has been superseded by 1016 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 1017 replaced by hw.bus.devctl_queue=0. The default for this new tunable 1018 is 1000. 1019 102020090813: 1021 Remove the option STOP_NMI. The default action is now to use NMI only 1022 for KDB via the newly introduced function stop_cpus_hard() and 1023 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 1024 102520090803: 1026 The stable/8 branch created in subversion. This corresponds to the 1027 RELENG_8 branch in CVS. 1028 102920090719: 1030 Bump the shared library version numbers for all libraries that do not 1031 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 1032 __FreeBSD_version to 800105. 1033 103420090714: 1035 Due to changes in the implementation of virtual network stack support, 1036 all network-related kernel modules must be recompiled. As this change 1037 breaks the ABI, bump __FreeBSD_version to 800104. 1038 103920090713: 1040 The TOE interface to the TCP syncache has been modified to remove 1041 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 1042 The cxgb driver is the only TOE consumer affected by this change, and 1043 needs to be recompiled along with the kernel. As this change breaks 1044 the ABI, bump __FreeBSD_version to 800103. 1045 104620090712: 1047 Padding has been added to struct tcpcb, sackhint and tcpstat in 1048 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 1049 maintaining the ABI. However, this change breaks the ABI, so bump 1050 __FreeBSD_version to 800102. User space tools that rely on the size of 1051 any of these structs (e.g. sockstat) need to be recompiled. 1052 105320090630: 1054 The NFS_LEGACYRPC option has been removed along with the old kernel 1055 RPC implementation that this option selected. Kernel configurations 1056 may need to be adjusted. 1057 105820090629: 1059 The network interface device nodes at /dev/net/<interface> have been 1060 removed. All ioctl operations can be performed the normal way using 1061 routing sockets. The kqueue functionality can generally be replaced 1062 with routing sockets. 1063 106420090628: 1065 The documentation from the FreeBSD Documentation Project (Handbook, 1066 FAQ, etc.) is now installed via packages by sysinstall(8) and under 1067 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 1068 106920090624: 1070 The ABI of various structures related to the SYSV IPC API have been 1071 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 1072 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 1073 800100. 1074 107520090622: 1076 Layout of struct vnet has changed as routing related variables were 1077 moved to their own Vimage module. Modules need to be recompiled. Bump 1078 __FreeBSD_version to 800099. 1079 108020090619: 1081 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 1082 respectively. As long as no more than 16 groups per process are used, 1083 no changes should be visible. When more than 16 groups are used, old 1084 binaries may fail if they call getgroups() or getgrouplist() with 1085 statically sized storage. Recompiling will work around this, but 1086 applications should be modified to use dynamically allocated storage 1087 for group arrays as POSIX.1-2008 does not cap an implementation's 1088 number of supported groups at NGROUPS_MAX+1 as previous versions did. 1089 1090 NFS and portalfs mounts may also be affected as the list of groups is 1091 truncated to 16. Users of NFS who use more than 16 groups, should 1092 take care that negative group permissions are not used on the exported 1093 file systems as they will not be reliable unless a GSSAPI based 1094 authentication method is used. 1095 109620090616: 1097 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 1098 option compiles in the support for adaptive spinning for lockmgrs 1099 which want to enable it. The lockinit() function now accepts the flag 1100 LK_ADAPTIVE in order to make the lock object subject to adaptive 1101 spinning when both held in write and read mode. 1102 110320090613: 1104 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 1105 changed. User applications that use this ioctl need to be rebuilt. 1106 110720090611: 1108 The layout of struct thread has changed. Kernel and modules need to 1109 be rebuilt. 1110 111120090608: 1112 The layout of structs ifnet, domain, protosw and vnet_net has changed. 1113 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 1114 111520090602: 1116 window(1) has been removed from the base system. It can now be 1117 installed from ports. The port is called misc/window. 1118 111920090601: 1120 The way we are storing and accessing `routing table' entries has 1121 changed. Programs reading the FIB, like netstat, need to be 1122 re-compiled. 1123 112420090601: 1125 A new netisr implementation has been added for FreeBSD 8. Network 1126 file system modules, such as igmp, ipdivert, and others, should be 1127 rebuilt. 1128 Bump __FreeBSD_version to 800096. 1129 113020090530: 1131 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 1132 more valid. 1133 113420090530: 1135 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 1136 Bump __FreeBSD_version to 800094. 1137 113820090529: 1139 Add mnt_xflag field to 'struct mount'. File system modules need to be 1140 rebuilt. 1141 Bump __FreeBSD_version to 800093. 1142 114320090528: 1144 The compiling option ADAPTIVE_SX has been retired while it has been 1145 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 1146 The KPI for sx_init_flags() changes as accepting flags: 1147 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 1148 been introduced in order to handle the reversed logic. 1149 Bump __FreeBSD_version to 800092. 1150 115120090527: 1152 Add support for hierarchical jails. Remove global securelevel. 1153 Bump __FreeBSD_version to 800091. 1154 115520090523: 1156 The layout of struct vnet_net has changed, therefore modules 1157 need to be rebuilt. 1158 Bump __FreeBSD_version to 800090. 1159 116020090523: 1161 The newly imported zic(8) produces a new format in the output. Please 1162 run tzsetup(8) to install the newly created data to /etc/localtime. 1163 116420090520: 1165 The sysctl tree for the usb stack has renamed from hw.usb2.* to 1166 hw.usb.* and is now consistent again with previous releases. 1167 116820090520: 1169 802.11 monitor mode support was revised and driver api's were changed. 1170 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 1171 of DLT_IEEE802_11. No user-visible data structures were changed but 1172 applications that use DLT_IEEE802_11 may require changes. 1173 Bump __FreeBSD_version to 800088. 1174 117520090430: 1176 The layout of the following structs has changed: sysctl_oid, 1177 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 1178 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 1179 panics may be experienced. World rebuild is required for 1180 correctly checking networking state from userland. 1181 Bump __FreeBSD_version to 800085. 1182 118320090429: 1184 MLDv2 and Source-Specific Multicast (SSM) have been merged 1185 to the IPv6 stack. VIMAGE hooks are in but not yet used. 1186 The implementation of SSM within FreeBSD's IPv6 stack closely 1187 follows the IPv4 implementation. 1188 1189 For kernel developers: 1190 1191 * The most important changes are that the ip6_output() and 1192 ip6_input() paths no longer take the IN6_MULTI_LOCK, 1193 and this lock has been downgraded to a non-recursive mutex. 1194 1195 * As with the changes to the IPv4 stack to support SSM, filtering 1196 of inbound multicast traffic must now be performed by transport 1197 protocols within the IPv6 stack. This does not apply to TCP and 1198 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 1199 1200 * The KPIs used by IPv6 multicast are similar to those used by 1201 the IPv4 stack, with the following differences: 1202 * im6o_mc_filter() is analogous to imo_multicast_filter(). 1203 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 1204 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 1205 * IN6_LOOKUP_MULTI() has been deprecated and removed. 1206 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1207 for MLDv1 have an additional 'timer' argument which is used to 1208 jitter the initial membership report for the solicited-node 1209 multicast membership on-link. 1210 * This is not strictly needed for MLDv2, which already jitters 1211 its report transmissions. However, the 'timer' argument is 1212 preserved in case MLDv1 is active on the interface. 1213 1214 * The KAME linked-list based IPv6 membership implementation has 1215 been refactored to use a vector similar to that used by the IPv4 1216 stack. 1217 Code which maintains a list of its own multicast memberships 1218 internally, e.g. carp, has been updated to reflect the new 1219 semantics. 1220 1221 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1222 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1223 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1224 implementation constraint which needs to be addressed in HEAD. 1225 1226 For application developers: 1227 1228 * The changes are broadly similar to those made for the IPv4 1229 stack. 1230 1231 * The use of IPv4 and IPv6 multicast socket options on the same 1232 socket, using mapped addresses, HAS NOT been tested or supported. 1233 1234 * There are a number of issues with the implementation of various 1235 IPv6 multicast APIs which need to be resolved in the API surface 1236 before the implementation is fully compatible with KAME userland 1237 use, and these are mostly to do with interface index treatment. 1238 1239 * The literature available discusses the use of either the delta / ASM 1240 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1241 using setsourcefilter(3)/getsourcefilter(3). For more information 1242 please refer to RFC 3768, 'Socket Interface Extensions for 1243 Multicast Source Filters'. 1244 1245 * Applications which use the published RFC 3678 APIs should be fine. 1246 1247 For systems administrators: 1248 1249 * The mtest(8) utility has been refactored to support IPv6, in 1250 addition to IPv4. Interface addresses are no longer accepted 1251 as arguments, their names must be used instead. The utility 1252 will map the interface name to its first IPv4 address as 1253 returned by getifaddrs(3). 1254 1255 * The ifmcstat(8) utility has also been updated to print the MLDv2 1256 endpoint state and source filter lists via sysctl(3). 1257 1258 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1259 loopback of IPv6 multicast datagrams by default; it defaults to 1 1260 to preserve the existing behaviour. Disabling multicast loopback is 1261 recommended for optimal system performance. 1262 1263 * The IPv6 MROUTING code has been changed to examine this sysctl 1264 instead of attempting to perform a group lookup before looping 1265 back forwarded datagrams. 1266 1267 Bump __FreeBSD_version to 800084. 1268 126920090422: 1270 Implement low-level Bluetooth HCI API. 1271 Bump __FreeBSD_version to 800083. 1272 127320090419: 1274 The layout of struct malloc_type, used by modules to register new 1275 memory allocation types, has changed. Most modules will need to 1276 be rebuilt or panics may be experienced. 1277 Bump __FreeBSD_version to 800081. 1278 127920090415: 1280 Anticipate overflowing inp_flags - add inp_flags2. 1281 This changes most offsets in inpcb, so checking v4 connection 1282 state will require a world rebuild. 1283 Bump __FreeBSD_version to 800080. 1284 128520090415: 1286 Add an llentry to struct route and struct route_in6. Modules 1287 embedding a struct route will need to be recompiled. 1288 Bump __FreeBSD_version to 800079. 1289 129020090414: 1291 The size of rt_metrics_lite and by extension rtentry has changed. 1292 Networking administration apps will need to be recompiled. 1293 The route command now supports show as an alias for get, weighting 1294 of routes, sticky and nostick flags to alter the behavior of stateful 1295 load balancing. 1296 Bump __FreeBSD_version to 800078. 1297 129820090408: 1299 Do not use Giant for kbdmux(4) locking. This is wrong and 1300 apparently causing more problems than it solves. This will 1301 re-open the issue where interrupt handlers may race with 1302 kbdmux(4) in polling mode. Typical symptoms include (but 1303 not limited to) duplicated and/or missing characters when 1304 low level console functions (such as gets) are used while 1305 interrupts are enabled (for example geli password prompt, 1306 mountroot prompt etc.). Disabling kbdmux(4) may help. 1307 130820090407: 1309 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1310 kernel modules referencing any of the above need to be recompiled. 1311 Bump __FreeBSD_version to 800075. 1312 131320090320: 1314 GEOM_PART has become the default partition slicer for storage devices, 1315 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1316 introduces some changes: 1317 1318 MSDOS/EBR: the devices created from MSDOS extended partition entries 1319 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1320 to devices with offset-based names. fstabs may need to be modified. 1321 1322 BSD: the "geometry does not match label" warning is harmless in most 1323 cases but it points to problems in file system misalignment with 1324 disk geometry. The "c" partition is now implicit, covers the whole 1325 top-level drive and cannot be (mis)used by users. 1326 1327 General: Kernel dumps are now not allowed to be written to devices 1328 whose partition types indicate they are meant to be used for file 1329 systems (or, in case of MSDOS partitions, as something else than 1330 the "386BSD" type). 1331 1332 Most of these changes date approximately from 200812. 1333 133420090319: 1335 The uscanner(4) driver has been removed from the kernel. This follows 1336 Linux removing theirs in 2.6 and making libusb the default interface 1337 (supported by sane). 1338 133920090319: 1340 The multicast forwarding code has been cleaned up. netstat(1) 1341 only relies on KVM now for printing bandwidth upcall meters. 1342 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1343 ip6_mroute_mod respectively. The config(5) options for statically 1344 compiling this code remain the same, i.e. 'options MROUTING'. 1345 134620090315: 1347 Support for the IFF_NEEDSGIANT network interface flag has been 1348 removed, which means that non-MPSAFE network device drivers are no 1349 longer supported. In particular, if_ar, if_sr, and network device 1350 drivers from the old (legacy) USB stack can no longer be built or 1351 used. 1352 135320090313: 1354 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1355 a bunch of new language catalog files have also been added. 1356 This means that some common libc messages are now localized and 1357 they depend on the LC_MESSAGES environmental variable. 1358 135920090313: 1360 The k8temp(4) driver has been renamed to amdtemp(4) since 1361 support for Family 10 and Family 11 CPU families was added. 1362 136320090309: 1364 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1365 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1366 1367 For kernel developers, the most important changes are that the 1368 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1369 and this lock has been downgraded to a non-recursive mutex. 1370 1371 Transport protocols (UDP, Raw IP) are now responsible for filtering 1372 inbound multicast traffic according to group membership and source 1373 filters. The imo_multicast_filter() KPI exists for this purpose. 1374 Transports which do not use multicast (SCTP, TCP) already reject 1375 multicast by default. Forwarding and receive performance may improve 1376 as a mutex acquisition is no longer needed in the ip_input() 1377 low-level input path. in_addmulti() and in_delmulti() are shimmed 1378 to new KPIs which exist to support SSM in-kernel. 1379 1380 For application developers, it is recommended that loopback of 1381 multicast datagrams be disabled for best performance, as this 1382 will still cause the lock to be taken for each looped-back 1383 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1384 be tuned to 0 to disable loopback by default; it defaults to 1 1385 to preserve the existing behaviour. 1386 1387 For systems administrators, to obtain best performance with 1388 multicast reception and multiple groups, it is always recommended 1389 that a card with a suitably precise hash filter is used. Hash 1390 collisions will still result in the lock being taken within the 1391 transport protocol input path to check group membership. 1392 1393 If deploying FreeBSD in an environment with IGMP snooping switches, 1394 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1395 enabled; this forces 224.0.0.0/24 group membership to be announced 1396 via IGMP. 1397 1398 The size of 'struct igmpstat' has changed; netstat needs to be 1399 recompiled to reflect this. 1400 Bump __FreeBSD_version to 800070. 1401 140220090309: 1403 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1404 updated to use it. This requires a buildworld/installworld in order to 1405 update the library and dependencies (usbconfig, etc). Its advisable to 1406 rebuild all ports which uses libusb. More specific directions are given 1407 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1408 libusb are no longer required and can be removed. 1409 141020090302: 1411 A workaround is committed to allow the creation of System V shared 1412 memory segment of size > 2 GB on the 64-bit architectures. 1413 Due to a limitation of the existing ABI, the shm_segsz member 1414 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1415 wrong for large segments. Note that limits must be explicitly 1416 raised to allow such segments to be created. 1417 141820090301: 1419 The layout of struct ifnet has changed, requiring a rebuild of all 1420 network device driver modules. 1421 142220090227: 1423 The /dev handling for the new USB stack has changed, a 1424 buildworld/installworld is required for libusb20. 1425 142620090223: 1427 The new USB2 stack has now been permanently moved in and all kernel and 1428 module names reverted to their previous values (eg, usb, ehci, ohci, 1429 ums, ...). The old usb stack can be compiled in by prefixing the name 1430 with the letter 'o', the old usb modules have been removed. 1431 Updating entry 20090216 for xorg and 20090215 for libmap may still 1432 apply. 1433 143420090217: 1435 The rc.conf(5) option if_up_delay has been renamed to 1436 defaultroute_delay to better reflect its purpose. If you have 1437 customized this setting in /etc/rc.conf you need to update it to 1438 use the new name. 1439 144020090216: 1441 xorg 7.4 wants to configure its input devices via hald which does not 1442 yet work with USB2. If the keyboard/mouse does not work in xorg then 1443 add 1444 Option "AllowEmptyInput" "off" 1445 to your ServerLayout section. This will cause X to use the configured 1446 kbd and mouse sections from your xorg.conf. 1447 144820090215: 1449 The GENERIC kernels for all architectures now default to the new USB2 1450 stack. No kernel config options or code have been removed so if a 1451 problem arises please report it and optionally revert to the old USB 1452 stack. If you are loading USB kernel modules or have a custom kernel 1453 that includes GENERIC then ensure that usb names are also changed over, 1454 eg uftdi -> usb2_serial_ftdi. 1455 1456 Older programs linked against the ports libusb 0.1 need to be 1457 redirected to the new stack's libusb20. /etc/libmap.conf can 1458 be used for this: 1459 # Map old usb library to new one for usb2 stack 1460 libusb-0.1.so.8 libusb20.so.1 1461 146220090209: 1463 All USB ethernet devices now attach as interfaces under the name ueN 1464 (eg. ue0). This is to provide a predictable name as vendors often 1465 change usb chipsets in a product without notice. 1466 146720090203: 1468 The ichsmb(4) driver has been changed to require SMBus slave 1469 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1470 All of the other SMBus controller drivers require left-justified 1471 slave addresses, so this change makes all the drivers provide the 1472 same interface. 1473 147420090201: 1475 INET6 statistics (struct ip6stat) was updated. 1476 netstat(1) needs to be recompiled. 1477 147820090119: 1479 NTFS has been removed from GENERIC kernel on amd64 to match 1480 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1481 will load ntfs.ko module automatically when NTFS support is 1482 actually needed, unless ntfs.ko is not installed or security 1483 level prohibits loading kernel modules. If either is the case, 1484 "options NTFS" has to be added into kernel config. 1485 148620090115: 1487 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1488 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1489 800061. User space tools that rely on the size of struct tcpcb in 1490 tcp_var.h (e.g. sockstat) need to be recompiled. 1491 149220081225: 1493 ng_tty(4) module updated to match the new TTY subsystem. 1494 Due to API change, user-level applications must be updated. 1495 New API support added to mpd5 CVS and expected to be present 1496 in next mpd5.3 release. 1497 149820081219: 1499 With __FreeBSD_version 800060 the makefs tool is part of 1500 the base system (it was a port). 1501 150220081216: 1503 The afdata and ifnet locks have been changed from mutexes to 1504 rwlocks, network modules will need to be re-compiled. 1505 150620081214: 1507 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1508 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1509 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1510 architecture and 40 bytes on 64-bit architecture. The userland 1511 applications "arp" and "ndp" have been updated accordingly. 1512 The output from "netstat -r" shows only routing entries and 1513 none of the L2 information. 1514 151520081130: 1516 __FreeBSD_version 800057 marks the switchover from the 1517 binary ath hal to source code. Users must add the line: 1518 1519 options AH_SUPPORT_AR5416 1520 1521 to their kernel config files when specifying: 1522 1523 device ath_hal 1524 1525 The ath_hal module no longer exists; the code is now compiled 1526 together with the driver in the ath module. It is now 1527 possible to tailor chip support (i.e. reduce the set of chips 1528 and thereby the code size); consult ath_hal(4) for details. 1529 153020081121: 1531 __FreeBSD_version 800054 adds memory barriers to 1532 <machine/atomic.h>, new interfaces to ifnet to facilitate 1533 multiple hardware transmit queues for cards that support 1534 them, and a lock-less ring-buffer implementation to 1535 enable drivers to more efficiently manage queueing of 1536 packets. 1537 153820081117: 1539 A new version of ZFS (version 13) has been merged to -HEAD. 1540 This version has zpool attribute "listsnapshots" off by 1541 default, which means "zfs list" does not show snapshots, 1542 and is the same as Solaris behavior. 1543 154420081028: 1545 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1546 154720081009: 1548 The uhci, ohci, ehci and slhci USB Host controller drivers have 1549 been put into separate modules. If you load the usb module 1550 separately through loader.conf you will need to load the 1551 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1552 controller add the following to loader.conf: 1553 1554 uhci_load="YES" 1555 ehci_load="YES" 1556 155720081009: 1558 The ABI used by the PMC toolset has changed. Please keep 1559 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1560 sync. 1561 156220081009: 1563 atapci kernel module now includes only generic PCI ATA 1564 driver. AHCI driver moved to ataahci kernel module. 1565 All vendor-specific code moved into separate kernel modules: 1566 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1567 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1568 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1569 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1570 157120080820: 1572 The TTY subsystem of the kernel has been replaced by a new 1573 implementation, which provides better scalability and an 1574 improved driver model. Most common drivers have been migrated to 1575 the new TTY subsystem, while others have not. The following 1576 drivers have not yet been ported to the new TTY layer: 1577 1578 PCI/ISA: 1579 cy, digi, rc, rp, sio 1580 1581 USB: 1582 ubser, ucycom 1583 1584 Line disciplines: 1585 ng_h4, ng_tty, ppp, sl, snp 1586 1587 Adding these drivers to your kernel configuration file shall 1588 cause compilation to fail. 1589 159020080818: 1591 ntpd has been upgraded to 4.2.4p5. 1592 159320080801: 1594 OpenSSH has been upgraded to 5.1p1. 1595 1596 For many years, FreeBSD's version of OpenSSH preferred DSA 1597 over RSA for host and user authentication keys. With this 1598 upgrade, we've switched to the vendor's default of RSA over 1599 DSA. This may cause upgraded clients to warn about unknown 1600 host keys even for previously known hosts. Users should 1601 follow the usual procedure for verifying host keys before 1602 accepting the RSA key. 1603 1604 This can be circumvented by setting the "HostKeyAlgorithms" 1605 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1606 command line. 1607 1608 Please note that the sequence of keys offered for 1609 authentication has been changed as well. You may want to 1610 specify IdentityFile in a different order to revert this 1611 behavior. 1612 161320080713: 1614 The sio(4) driver has been removed from the i386 and amd64 1615 kernel configuration files. This means uart(4) is now the 1616 default serial port driver on those platforms as well. 1617 1618 To prevent collisions with the sio(4) driver, the uart(4) driver 1619 uses different names for its device nodes. This means the 1620 onboard serial port will now most likely be called "ttyu0" 1621 instead of "ttyd0". You may need to reconfigure applications to 1622 use the new device names. 1623 1624 When using the serial port as a boot console, be sure to update 1625 /boot/device.hints and /etc/ttys before booting the new kernel. 1626 If you forget to do so, you can still manually specify the hints 1627 at the loader prompt: 1628 1629 set hint.uart.0.at="isa" 1630 set hint.uart.0.port="0x3F8" 1631 set hint.uart.0.flags="0x10" 1632 set hint.uart.0.irq="4" 1633 boot -s 1634 163520080609: 1636 The gpt(8) utility has been removed. Use gpart(8) to partition 1637 disks instead. 1638 163920080603: 1640 The version that Linuxulator emulates was changed from 2.4.2 1641 to 2.6.16. If you experience any problems with Linux binaries 1642 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1643 if it fixes the problem contact emulation mailing list. 1644 164520080525: 1646 ISDN4BSD (I4B) was removed from the src tree. You may need to 1647 update a your kernel configuration and remove relevant entries. 1648 164920080509: 1650 I have checked in code to support multiple routing tables. 1651 See the man pages setfib(1) and setfib(2). 1652 This is a hopefully backwards compatible version, 1653 but to make use of it you need to compile your kernel 1654 with options ROUTETABLES=2 (or more up to 16). 1655 165620080420: 1657 The 802.11 wireless support was redone to enable multi-bss 1658 operation on devices that are capable. The underlying device 1659 is no longer used directly but instead wlanX devices are 1660 cloned with ifconfig. This requires changes to rc.conf files. 1661 For example, change: 1662 ifconfig_ath0="WPA DHCP" 1663 to 1664 wlans_ath0=wlan0 1665 ifconfig_wlan0="WPA DHCP" 1666 see rc.conf(5) for more details. In addition, mergemaster of 1667 /etc/rc.d is highly recommended. Simultaneous update of userland 1668 and kernel wouldn't hurt either. 1669 1670 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1671 modules were merged into the base wlan module. All references 1672 to these modules (e.g. in kernel config files) must be removed. 1673 167420080408: 1675 psm(4) has gained write(2) support in native operation level. 1676 Arbitrary commands can be written to /dev/psm%d and status can 1677 be read back from it. Therefore, an application is responsible 1678 for status validation and error recovery. It is a no-op in 1679 other operation levels. 1680 168120080312: 1682 Support for KSE threading has been removed from the kernel. To 1683 run legacy applications linked against KSE libmap.conf may 1684 be used. The following libmap.conf may be used to ensure 1685 compatibility with any prior release: 1686 1687 libpthread.so.1 libthr.so.1 1688 libpthread.so.2 libthr.so.2 1689 libkse.so.3 libthr.so.3 1690 169120080301: 1692 The layout of struct vmspace has changed. This affects libkvm 1693 and any executables that link against libkvm and use the 1694 kvm_getprocs() function. In particular, but not exclusively, 1695 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1696 The effects are minimal, but it's advisable to upgrade world 1697 nonetheless. 1698 169920080229: 1700 The latest em driver no longer has support in it for the 1701 82575 adapter, this is now moved to the igb driver. The 1702 split was done to make new features that are incompatible 1703 with older hardware easier to do. 1704 170520080220: 1706 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1707 likewise the kernel option is now GEOM_LINUX_LVM. 1708 170920080211: 1710 The default NFS mount mode has changed from UDP to TCP for 1711 increased reliability. If you rely on (insecurely) NFS 1712 mounting across a firewall you may need to update your 1713 firewall rules. 1714 171520080208: 1716 Belatedly note the addition of m_collapse for compacting 1717 mbuf chains. 1718 171920080126: 1720 The fts(3) structures have been changed to use adequate 1721 integer types for their members and so to be able to cope 1722 with huge file trees. The old fts(3) ABI is preserved 1723 through symbol versioning in libc, so third-party binaries 1724 using fts(3) should still work, although they will not take 1725 advantage of the extended types. At the same time, some 1726 third-party software might fail to build after this change 1727 due to unportable assumptions made in its source code about 1728 fts(3) structure members. Such software should be fixed 1729 by its vendor or, in the worst case, in the ports tree. 1730 FreeBSD_version 800015 marks this change for the unlikely 1731 case that a portable fix is impossible. 1732 173320080123: 1734 To upgrade to -current after this date, you must be running 1735 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1736 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1737 173820071128: 1739 The ADAPTIVE_GIANT kernel option has been retired because its 1740 functionality is the default now. 1741 174220071118: 1743 The AT keyboard emulation of sunkbd(4) has been turned on 1744 by default. In order to make the special symbols of the Sun 1745 keyboards driven by sunkbd(4) work under X these now have 1746 to be configured the same way as Sun USB keyboards driven 1747 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1748 1749 Option "XkbLayout" "us" 1750 Option "XkbRules" "xorg" 1751 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1752 175320071024: 1754 It has been decided that it is desirable to provide ABI 1755 backwards compatibility to the FreeBSD 4/5/6 versions of the 1756 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1757 broken with the introduction of PCI domain support (see the 1758 20070930 entry). Unfortunately, this required the ABI of 1759 PCIOCGETCONF to be broken again in order to be able to 1760 provide backwards compatibility to the old version of that 1761 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1762 again. As for prominent ports this affects neither pciutils 1763 nor xorg-server this time, the hal port needs to be rebuilt 1764 however. 1765 176620071020: 1767 The misnamed kthread_create() and friends have been renamed 1768 to kproc_create() etc. Many of the callers already 1769 used kproc_start().. 1770 I will return kthread_create() and friends in a while 1771 with implementations that actually create threads, not procs. 1772 Renaming corresponds with version 800002. 1773 177420071010: 1775 RELENG_7 branched. 1776 1777COMMON ITEMS: 1778 1779 General Notes 1780 ------------- 1781 Avoid using make -j when upgrading. While generally safe, there are 1782 sometimes problems using -j to upgrade. If your upgrade fails with 1783 -j, please try again without -j. From time to time in the past there 1784 have been problems using -j with buildworld and/or installworld. This 1785 is especially true when upgrading between "distant" versions (eg one 1786 that cross a major release boundary or several minor releases, or when 1787 several months have passed on the -current branch). 1788 1789 Sometimes, obscure build problems are the result of environment 1790 poisoning. This can happen because the make utility reads its 1791 environment when searching for values for global variables. To run 1792 your build attempts in an "environmental clean room", prefix all make 1793 commands with 'env -i '. See the env(1) manual page for more details. 1794 1795 When upgrading from one major version to another it is generally best 1796 to upgrade to the latest code in the currently installed branch first, 1797 then do an upgrade to the new branch. This is the best-tested upgrade 1798 path, and has the highest probability of being successful. Please try 1799 this approach before reporting problems with a major version upgrade. 1800 1801 ZFS notes 1802 --------- 1803 When upgrading the boot ZFS pool to a new version, always follow 1804 these two steps: 1805 1806 1.) recompile and reinstall the ZFS boot loader and boot block 1807 (this is part of "make buildworld" and "make installworld") 1808 1809 2.) update the ZFS boot block on your boot drive 1810 1811 The following example updates the ZFS boot block on the first 1812 partition (freebsd-boot) of a GPT partitioned drive ad0: 1813 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 1814 1815 Non-boot pools do not need these updates. 1816 1817 To build a kernel 1818 ----------------- 1819 If you are updating from a prior version of FreeBSD (even one just 1820 a few days old), you should follow this procedure. It is the most 1821 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1822 1823 make kernel-toolchain 1824 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1825 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1826 1827 To test a kernel once 1828 --------------------- 1829 If you just want to boot a kernel once (because you are not sure 1830 if it works, or if you want to boot a known bad kernel to provide 1831 debugging information) run 1832 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1833 nextboot -k testkernel 1834 1835 To just build a kernel when you know that it won't mess you up 1836 -------------------------------------------------------------- 1837 This assumes you are already running a CURRENT system. Replace 1838 ${arch} with the architecture of your machine (e.g. "i386", 1839 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1840 1841 cd src/sys/${arch}/conf 1842 config KERNEL_NAME_HERE 1843 cd ../compile/KERNEL_NAME_HERE 1844 make depend 1845 make 1846 make install 1847 1848 If this fails, go to the "To build a kernel" section. 1849 1850 To rebuild everything and install it on the current system. 1851 ----------------------------------------------------------- 1852 # Note: sometimes if you are running current you gotta do more than 1853 # is listed here if you are upgrading from a really old current. 1854 1855 <make sure you have good level 0 dumps> 1856 make buildworld 1857 make kernel KERNCONF=YOUR_KERNEL_HERE 1858 [1] 1859 <reboot in single user> [3] 1860 mergemaster -p [5] 1861 make installworld 1862 mergemaster -i [4] 1863 make delete-old [6] 1864 <reboot> 1865 1866 1867 To cross-install current onto a separate partition 1868 -------------------------------------------------- 1869 # In this approach we use a separate partition to hold 1870 # current's root, 'usr', and 'var' directories. A partition 1871 # holding "/", "/usr" and "/var" should be about 2GB in 1872 # size. 1873 1874 <make sure you have good level 0 dumps> 1875 <boot into -stable> 1876 make buildworld 1877 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1878 <maybe newfs current's root partition> 1879 <mount current's root partition on directory ${CURRENT_ROOT}> 1880 make installworld DESTDIR=${CURRENT_ROOT} 1881 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1882 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1883 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1884 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1885 <reboot into current> 1886 <do a "native" rebuild/install as described in the previous section> 1887 <maybe install compatibility libraries from ports/misc/compat*> 1888 <reboot> 1889 1890 1891 To upgrade in-place from stable to current 1892 ---------------------------------------------- 1893 <make sure you have good level 0 dumps> 1894 make buildworld [9] 1895 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1896 [1] 1897 <reboot in single user> [3] 1898 mergemaster -p [5] 1899 make installworld 1900 mergemaster -i [4] 1901 make delete-old [6] 1902 <reboot> 1903 1904 Make sure that you've read the UPDATING file to understand the 1905 tweaks to various things you need. At this point in the life 1906 cycle of current, things change often and you are on your own 1907 to cope. The defaults can also change, so please read ALL of 1908 the UPDATING entries. 1909 1910 Also, if you are tracking -current, you must be subscribed to 1911 freebsd-current@freebsd.org. Make sure that before you update 1912 your sources that you have read and understood all the recent 1913 messages there. If in doubt, please track -stable which has 1914 much fewer pitfalls. 1915 1916 [1] If you have third party modules, such as vmware, you 1917 should disable them at this point so they don't crash your 1918 system on reboot. 1919 1920 [3] From the bootblocks, boot -s, and then do 1921 fsck -p 1922 mount -u / 1923 mount -a 1924 cd src 1925 adjkerntz -i # if CMOS is wall time 1926 Also, when doing a major release upgrade, it is required that 1927 you boot into single user mode to do the installworld. 1928 1929 [4] Note: This step is non-optional. Failure to do this step 1930 can result in a significant reduction in the functionality of the 1931 system. Attempting to do it by hand is not recommended and those 1932 that pursue this avenue should read this file carefully, as well 1933 as the archives of freebsd-current and freebsd-hackers mailing lists 1934 for potential gotchas. The -U option is also useful to consider. 1935 See mergemaster(8) for more information. 1936 1937 [5] Usually this step is a noop. However, from time to time 1938 you may need to do this if you get unknown user in the following 1939 step. It never hurts to do it all the time. You may need to 1940 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1941 install) after the buildworld before this step if you last updated 1942 from [78]-stable or 9-stable before 20130430. 1943 1944 [6] This only deletes old files and directories. Old libraries 1945 can be deleted by "make delete-old-libs", but you have to make 1946 sure that no program is using those libraries anymore. 1947 1948 [8] In order to have a kernel that can run the 4.x binaries needed to 1949 do an installworld, you must include the COMPAT_FREEBSD4 option in 1950 your kernel. Failure to do so may leave you with a system that is 1951 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 1952 required to run the 5.x binaries on more recent kernels. And so on 1953 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 1954 1955 Make sure that you merge any new devices from GENERIC since the 1956 last time you updated your kernel config file. 1957 1958 [9] When checking out sources, you must include the -P flag to have 1959 cvs prune empty directories. 1960 1961 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1962 "?=" instead of the "=" assignment operator, so that buildworld can 1963 override the CPUTYPE if it needs to. 1964 1965 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1966 not on the command line, or in /etc/make.conf. buildworld will 1967 warn if it is improperly defined. 1968FORMAT: 1969 1970This file contains a list, in reverse chronological order, of major 1971breakages in tracking -current. It is not guaranteed to be a complete 1972list of such breakages, and only contains entries since October 10, 2007. 1973If you need to see UPDATING entries from before that date, you will need 1974to fetch an UPDATING file from an older FreeBSD release. 1975 1976Copyright information: 1977 1978Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 1979 1980Redistribution, publication, translation and use, with or without 1981modification, in full or in part, in any form or format of this 1982document are permitted without further permission from the author. 1983 1984THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1985IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1986WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1987DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1988INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1989(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1990SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1991HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1992STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1993IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1994POSSIBILITY OF SUCH DAMAGE. 1995 1996Contact Warner Losh if you have any questions about your use of 1997this document. 1998 1999$FreeBSD: releng/9.3/UPDATING 306942 2016-10-10 07:19:16Z delphij $ 2000