UPDATING revision 276157
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 1420141223: p7 FreeBSD-SA-14:31.ntp 15 FreeBSD-EN-14:13.freebsd-update 16 17 Fix multiple vulnerabilities in NTP suite. [SA-14:31] 18 Fix directory deletion issue in freebsd-update. [EN-14:13] 19 2020141210: p6 FreeBSD-SA-14:28.file 21 FreeBSD-SA-14:29.bind 22 23 Fix multiple vulnerabilities in file(1) and libmagic(3). 24 [SA-14:28] 25 26 Fix BIND remote denial of service vulnerability. [SA-14:29] 27 2820141104: p5 FreeBSD-SA-14:25.setlogin 29 FreeBSD-SA-14:26.ftp 30 FreeBSD-EN-14:12.zfs 31 32 Fix kernel stack disclosure in setlogin(2) / getlogin(2). 33 [SA-14:25] 34 35 Fix remote command execution in ftp(1). [SA-14:26] 36 37 Fix NFSv4 and ZFS cache consistency issue. [EN-14:12] 38 3920141022: p4 FreeBSD-EN-14:10.tzdata 40 FreeBSD-EN-14:11.crypt 41 42 Time zone data file update. [EN-14:10] 43 44 Change crypt(3) default hashing algorithm back to DES. [EN-14:11] 45 4620141021: p3 FreeBSD-SA-14:20.rtsold 47 FreeBSD-SA-14:21.routed 48 FreeBSD-SA-14:22.namei 49 FreeBSD-SA-14:23.openssl 50 51 Fix rtsold(8) remote buffer overflow vulnerability. [SA-14:20] 52 53 Fix routed(8) remote denial of service vulnerability. [SA-14:21] 54 55 Fix memory leak in sandboxed namei lookup. [SA-14:22] 56 57 Fix OpenSSL multiple vulnerabilities. [SA-14:23] 58 5920140916: p2 FreeBSD-SA-14:19.tcp 60 Fix Denial of Service in TCP packet processing. [SA-14:19] 61 6220140909: p1 FreeBSD-SA-14:18.openssl 63 Fix OpenSSL multiple vulnerabilities. [SA-14:18] 64 6520140716: 66 9.3-RELEASE. 67 6820140608: 69 On i386 and amd64 systems, the onifconsole flag is now set by default 70 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled 71 as a login TTY if it is set in the bootloader as an active kernel 72 console. No changes in behavior should result otherwise. To revert to 73 the previous behavior, set ttyu0 to "off" in /etc/ttys. 74 7520140512: 76 Clang and llvm have been upgraded to 3.4.1 release. 77 7820140321: 79 Clang and llvm have been upgraded to 3.4 release. 80 8120140216: 82 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has 83 been deprecated and will not be part of FreeBSD 11.0 and later 84 releases. If you use this driver, please consider switching to 85 the nfe(4) driver instead. 86 8720131216: 88 The behavior of gss_pseudo_random() for the krb5 mechanism 89 has changed, for applications requesting a longer random string 90 than produced by the underlying enctype's pseudo-random() function. 91 In particular, the random string produced from a session key of 92 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will 93 be different at the 17th octet and later, after this change. 94 The counter used in the PRF+ construction is now encoded as a 95 big-endian integer in accordance with RFC 4402. 96 __FreeBSD_version is bumped to 902505. 97 9820130930: 99 9.2-RELEASE. 100 10120130823: 102 Behavior of devfs rules path matching has been changed. 103 Pattern is now always matched against fully qualified devfs 104 path and slash characters must be explicitly matched by 105 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs 106 subdirectories must be reviewed. 107 10820130705: 109 hastctl(8)'s `status' command output changed to terse one-liner format. 110 Scripts using this should switch to `list' command or be rewritten. 111 11220130618: 113 Fix a bug that allowed a tracing process (e.g. gdb) to write 114 to a memory-mapped file in the traced process's address space 115 even if neither the traced process nor the tracing process had 116 write access to that file. 117 11820130605: 119 Added ZFS TRIM support which is enabled by default. To disable 120 ZFS TRIM support set vfs.zfs.trim.enabled=0 in loader.conf. 121 122 Creating new ZFS pools and adding new devices to existing pools 123 first performs a full device level TRIM which can take a significant 124 amount of time. The sysctl vfs.zfs.vdev.trim_on_init can be set to 0 125 to disable this behaviour. 126 127 ZFS TRIM requires the underlying device support BIO_DELETE which 128 is currently provided by methods such as ATA TRIM and SCSI UNMAP 129 via CAM, which are typically supported by SSD's. 130 131 Stats for ZFS TRIM can be monitored by looking at the sysctl's 132 under kstat.zfs.misc.zio_trim. 133 13420130524: 135 `list' command has been added to hastctl(8). For now, it is full 136 equivalent of `status' command. 137 WARNING: in the near future the output of hastctl's status command 138 will change to more terse format. If you use `hastctl status' 139 for parsing in your scripts, switch to `hastctl list'. 140 14120130430: 142 The mergemaster command now uses the default MAKEOBJDIRPREFIX 143 rather than creating it's own in the temporary directory in 144 order allow access to bootstrapped versions of tools such as 145 install and mtree. When upgrading from version of FreeBSD where 146 the install command does not support -l, you will need to 147 install a new mergemaster command if mergemaster -p is required. 148 This can be accomplished with the command (cd src/usr.sbin/mergemaster 149 && make install). 150 151 Due to the use of the new -l option to install(1) during build 152 and install, you must take care not to directly set the INSTALL 153 make variable in your /etc/make.conf, /etc/src.conf, or on the 154 command line. If you wish to use the -C flag for all installs 155 you may be able to add INSTALL+=-C to /etc/make.conf or 156 /etc/src.conf. 157 15820130429: 159 Fix a bug that allows NFS clients to issue READDIR on files. 160 16120130315: 162 The install(1) option -M has changed meaning and now takes an 163 argument that is a file or path to append logs to. In the 164 unlikely event that -M was the last option on the command line 165 and the command line contained at least two files and a target 166 directory the first file will have logs appended to it. The -M 167 option served little practical purpose in the last decade so it's 168 used expected to be extremely rare. 169 17020130225: 171 A new compression method (lz4) has been merged to. Please refer to 172 zpool-features(7) for more information. 173 174 Please refer to the "ZFS notes" section of this file for information 175 on upgrading boot ZFS pools. 176 17720121224: 178 The VFS KBI was changed with the merge of several nullfs 179 optimizations and fixes. All filesystem modules must be 180 recompiled. 181 18220121218: 183 With the addition of auditdistd(8), a new auditdistd user is now 184 depended on during installworld. "mergemaster -p" can be used to add 185 the user prior to installworld, as documented in the handbook. 186 18720121205: 188 9.1-RELEASE. 189 19020121129: 191 A new version of ZFS (pool version 5000) has been merged to 9-STABLE. 192 Starting with this version the old system of ZFS pool versioning 193 is superseded by "feature flags". This concept enables forward 194 compatibility against certain future changes in functionality of ZFS 195 pools. The first two read-only compatible "feature flags" for ZFS 196 pools are "com.delphix:async_destroy" and "com.delphix:empty_bpobj". 197 For more information read the new zpool-features(7) manual page. 198 Please refer to the "ZFS notes" section of this file for information 199 on upgrading boot ZFS pools. 200 20120121114: 202 The commit introducing bsd.compiler.mk breaks the traditional 203 building of kernels before this point. Add -m ${SRC}/share/mk 204 (for the right value of SRC) to your command lines to work 205 around; update your useland to a point after this; or use the 206 buildkernel/installkernel top-level targets. See also 20120829. 207 20820121102: 209 The IPFIREWALL_FORWARD kernel option has been removed. Its 210 functionality now turned on by default. 211 21220120913: 213 The random(4) support for the VIA hardware random number 214 generator (`PADLOCK') is no longer enabled unconditionally. 215 Add the PADLOCK_RNG option in the custom kernel config if 216 needed. The GENERIC kernels on i386 and amd64 do include the 217 option, so the change only affects the custom kernel 218 configurations. 219 22020120829: 221 The amd64 kernel now uses xsetbv, xrstor instructions. To compile with 222 the traditional method, you must update your system with an installworld 223 before the kernel will build. The documented make buildkernel/installkernel 224 interfaces (coupled with fresh make kernel-toolchain) continue to work. 225 22620120727: 227 The sparc64 ZFS loader has been changed to no longer try to auto- 228 detect ZFS providers based on diskN aliases but now requires these 229 to be explicitly listed in the OFW boot-device environment variable. 230 23120120422: 232 Now unix domain sockets behave "as expected" on nullfs(5). Previously 233 nullfs(5) did not pass through all behaviours to the underlying layer, 234 as a result if we bound to a socket on the lower layer we could connect 235 only to the lower path; if we bound to the upper layer we could connect 236 only to the upper path. The new behavior is one can connect to both the 237 lower and the upper paths regardless what layer path one binds to. 238 23920120109: 240 The acpi_wmi(4) status device /dev/wmistat has been renamed to 241 /dev/wmistat0. 242 24320120106: 244 A new VOP_ADVISE() was added to support posix_fadvise(2). All 245 filesystem modules must be recompiled. 246 24720120106: 248 The interface of the VOP_VPTOCNP(9) changed, now the returned 249 vnode shall be referenced, previously it was required to be 250 only held. All in-tree filesystems are converted. 251 25220120106: 253 9.0-RELEASE. 254 25520111101: 256 The broken amd(4) driver has been replaced with esp(4) in the amd64, 257 i386 and pc98 GENERIC kernel configuration files. 258 25920110913: 260 This commit modifies vfs_register() so that it uses a hash 261 calculation to set vfc_typenum, which is enabled by default. 262 The first time a system is booted after this change, the 263 vfc_typenum values will change for all file systems. The 264 main effect of this is a change to the NFS server file handles 265 for file systems that use vfc_typenum in their fsid, such as ZFS. 266 It will, however, prevent vfc_typenum from changing when file 267 systems are loaded in a different order for subsequent reboots. 268 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 269 until you are ready to remount all NFS clients after a reboot. 270 27120110828: 272 Bump the shared library version numbers for libraries that 273 do not use symbol versioning, have changed the ABI compared 274 to stable/8 and which shared library version was not bumped. 275 Done as part of 9.0-RELEASE cycle. 276 27720110815: 278 During the merge of Capsicum features, the fget(9) KPI was modified. 279 This may require the rebuilding of out-of-tree device drivers -- 280 issues have been reported specifically with the nVidia device driver. 281 __FreeBSD_version is bumped to 900041. 282 283 Also, there is a period between 20110811 and 20110814 where the 284 special devices /dev/{stdin,stdout,stderr} did not work correctly. 285 Building world from a kernel during that window may not work. 286 28720110628: 288 The packet filter (pf) code has been updated to OpenBSD 4.5. 289 You need to update userland tools to be in sync with kernel. 290 This update breaks backward compatibility with earlier pfsync(4) 291 versions. Care must be taken when updating redundant firewall setups. 292 29320110608: 294 The following sysctls and tunables are retired on x86 platforms: 295 machdep.hlt_cpus 296 machdep.hlt_logical_cpus 297 The following sysctl is retired: 298 machdep.hyperthreading_allowed 299 The sysctls were supposed to provide a way to dynamically offline and 300 online selected CPUs on x86 platforms, but the implementation has not 301 been reliable especially with SCHED_ULE scheduler. 302 machdep.hyperthreading_allowed tunable is still available to ignore 303 hyperthreading CPUs at OS level. 304 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 305 where X is an APIC ID of a CPU. Be advised, though, that disabling 306 CPUs in non-uniform fashion will result in non-uniform topology and 307 may lead to sub-optimal system performance with SCHED_ULE, which is 308 a default scheduler. 309 31020110607: 311 cpumask_t type is retired and cpuset_t is used in order to describe 312 a mask of CPUs. 313 31420110531: 315 Changes to ifconfig(8) for dynamic address family detection mandate 316 that you are running a kernel of 20110525 or later. Make sure to 317 follow the update procedure to boot a new kernel before installing 318 world. 319 32020110513: 321 Support for sun4v architecture is officially dropped 322 32320110503: 324 Several KPI breaking changes have been committed to the mii(4) layer, 325 the PHY drivers and consequently some Ethernet drivers using mii(4). 326 This means that miibus.ko and the modules of the affected Ethernet 327 drivers need to be recompiled. 328 329 Note to kernel developers: Given that the OUI bit reversion problem 330 was fixed as part of these changes all mii(4) commits related to OUIs, 331 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 332 handling, no longer can be merged verbatim to stable/8 and previous 333 branches. 334 33520110430: 336 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 337 into their kernel configurations along with 'device pci'. 338 33920110427: 340 The default NFS client is now the new NFS client, so fstype "newnfs" 341 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 342 Although mounts via fstype "nfs" will usually work without userland 343 changes, it is recommended that the mount(8) and mount_nfs(8) 344 commands be rebuilt from sources and that a link to mount_nfs called 345 mount_oldnfs be created. The new client is compiled into the 346 kernel with "options NFSCL" and this is needed for diskless root 347 file systems. The GENERIC kernel configs have been changed to use 348 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 349 To use the regular/old client, you can "mount -t oldnfs ...". For 350 a diskless root file system, you must also include a line like: 351 352 vfs.root.mountfrom="oldnfs:" 353 354 in the boot/loader.conf on the root fs on the NFS server to make 355 a diskless root fs use the old client. 356 35720110424: 358 The GENERIC kernels for all architectures now default to the new 359 CAM-based ATA stack. It means that all legacy ATA drivers were 360 removed and replaced by respective CAM drivers. If you are using 361 ATA device names in /etc/fstab or other places, make sure to update 362 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 363 where 'Y's are the sequential numbers starting from zero for each type 364 in order of detection, unless configured otherwise with tunables, 365 see cam(4)). There will be symbolic links created in /dev/ to map 366 old adX devices to the respective adaY. They should provide basic 367 compatibility for file systems mounting in most cases, but they do 368 not support old user-level APIs and do not have respective providers 369 in GEOM. Consider using updated management tools with new device names. 370 371 It is possible to load devices ahci, ata, siis and mvs as modules, 372 but option ATA_CAM should remain in kernel configuration to make ata 373 module work as CAM driver supporting legacy ATA controllers. Device ata 374 still can be used in modular fashion (atacore + ...). Modules atadisk 375 and atapi* are not used and won't affect operation in ATA_CAM mode. 376 Note that to use CAM-based ATA kernel should include CAM devices 377 scbus, pass, da (or explicitly ada), cd and optionally others. All of 378 them are parts of the cam module. 379 380 ataraid(4) functionality is now supported by the RAID GEOM class. 381 To use it you can load geom_raid kernel module and use graid(8) tool 382 for management. Instead of /dev/arX device names, use /dev/raid/rX. 383 384 No kernel config options or code have been removed, so if a problem 385 arises, please report it and optionally revert to the old ATA stack. 386 In order to do it you can remove from the kernel config: 387 options ATA_CAM 388 device ahci 389 device mvs 390 device siis 391 , and instead add back: 392 device atadisk # ATA disk drives 393 device ataraid # ATA RAID drives 394 device atapicd # ATAPI CDROM drives 395 device atapifd # ATAPI floppy drives 396 device atapist # ATAPI tape drives 397 39820110423: 399 The default NFS server has been changed to the new server, which 400 was referred to as the experimental server. If you need to switch 401 back to the old NFS server, you must now put the "-o" option on 402 both the mountd and nfsd commands. This can be done using the 403 mountd_flags and nfs_server_flags rc.conf variables until an 404 update to the rc scripts is committed, which is coming soon. 405 40620110418: 407 The GNU Objective-C runtime library (libobjc), and other Objective-C 408 related components have been removed from the base system. If you 409 require an Objective-C library, please use one of the available ports. 410 41120110331: 412 ath(4) has been split into bus- and device- modules. if_ath contains 413 the HAL, the TX rate control and the network device code. if_ath_pci 414 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 415 contains the AHB glue. Users need to load both if_ath_pci and if_ath 416 in order to use ath on everything else. 417 418 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 419 need to load if_ath and if_ath_pci for ath(4) operation. 420 42120110314: 422 As part of the replacement of sysinstall, the process of building 423 release media has changed significantly. For details, please re-read 424 release(7), which has been updated to reflect the new build process. 425 42620110218: 427 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 428 is the last available version under GPLv2. It brings a number of new 429 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 430 4.1 and SSE 4.2), better support for powerpc64, a number of new 431 directives, and lots of other small improvements. See the ChangeLog 432 file in contrib/binutils for the full details. 433 43420110218: 435 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 436 compliant, and will now use half of hash for authentication. 437 This will break interoperability with all stacks (including all 438 actual FreeBSD versions) who implement 439 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 440 authentication). 441 The only workaround with such peers is to use another HMAC 442 algorithm for IPsec ("phase 2") authentication. 443 44420110207: 445 Remove the uio_yield prototype and symbol. This function has 446 been misnamed since it was introduced and should not be 447 globally exposed with this name. The equivalent functionality 448 is now available using kern_yield(curthread->td_user_pri). 449 The function remains undocumented. 450 45120110112: 452 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 453 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 454 for scalar sysctls is defined but disabled. Code that needs 455 UQUAD to pass the type checking that must compile on older 456 systems where the define is not present can check against 457 __FreeBSD_version >= 900030. 458 459 The system dialog(1) has been replaced with a new version previously 460 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 461 with the previous version, but the libdialog associated with it has 462 a largely incompatible API. As such, the original version of libdialog 463 will be kept temporarily as libodialog, until its base system consumers 464 are replaced or updated. Bump __FreeBSD_version to 900030. 465 46620110103: 467 If you are trying to run make universe on a -stable system, and you get 468 the following warning: 469 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 470 unknown. config(8) likely too old." 471 or something similar to it, then you must upgrade your -stable system 472 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 473 stable/8) or build the config from the latest stable/8 branch and 474 install it on your system. 475 476 Prior to this date, building a current universe on 8-stable system from 477 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 478 error in the first kernel build phase. A new config on those old 479 systems will fix that problem for older versions of -current. 480 48120101228: 482 The TCP stack has been modified to allow Khelp modules to interact with 483 it via helper hook points and store per-connection data in the TCP 484 control block. Bump __FreeBSD_version to 900029. User space tools that 485 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 486 be recompiled. 487 48820101114: 489 Generic IEEE 802.3 annex 31B full duplex flow control support has been 490 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 491 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 492 to take advantage of it instead of using custom implementations. This 493 means that these drivers now no longer unconditionally advertise 494 support for flow control but only do so if flow control is a selected 495 media option. This was implemented in the generic support that way in 496 order to allow flow control to be switched on and off via ifconfig(8) 497 with the PHY specific default to typically off in order to protect 498 from unwanted effects. Consequently, if you used flow control with 499 one of the above mentioned drivers you now need to explicitly enable 500 it, for example via: 501 ifconfig bge0 media auto mediaopt flowcontrol 502 503 Along with the above mentioned changes generic support for setting 504 1000baseT master mode also has been added and brgphy(4), ciphy(4), 505 e1000phy(4) as well as ip1000phy(4) have been converted to take 506 advantage of it. This means that these drivers now no longer take the 507 link0 parameter for selecting master mode but the master media option 508 has to be used instead, for example like in the following: 509 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 510 511 Selection of master mode now is also available with all other PHY 512 drivers supporting 1000baseT. 513 51420101111: 515 The TCP stack has received a significant update to add support for 516 modularised congestion control and generally improve the clarity of 517 congestion control decisions. Bump __FreeBSD_version to 900025. User 518 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 519 sockstat) need to be recompiled. 520 52120101002: 522 The man(1) utility has been replaced by a new version that no longer 523 uses /etc/manpath.config. Please consult man.conf(5) for how to 524 migrate local entries to the new format. 525 52620100928: 527 The copyright strings printed by login(1) and sshd(8) at the time of a 528 new connection have been removed to follow other operating systems and 529 upstream sshd. 530 53120100915: 532 A workaround for a fixed ld bug has been removed in kernel code, 533 so make sure that your system ld is built from sources after 534 revision 210245 from 2010-07-19 (r211583 if building head kernel 535 on stable/8, r211584 for stable/7; both from 2010-08-21). 536 A symptom of incorrect ld version is different addresses for 537 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 538 53920100913: 540 The $ipv6_prefer variable in rc.conf(5) has been split into 541 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 542 543 The $ip6addrctl_policy is a variable to choose a pre-defined 544 address selection policy set by ip6addrctl(8). A value 545 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 546 default is "AUTO". 547 548 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 549 flag (see an entry of 20090926) is set on an interface with no 550 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 551 security reason. If you want IPv6 link-local address on all 552 interfaces by default, set this to "YES". 553 554 The old ipv6_prefer="YES" is equivalent to 555 ipv6_activate_all_interfaces="YES" and 556 ip6addrctl_policy="ipv6_prefer". 557 55820100913: 559 DTrace has grown support for userland tracing. Due to this, DTrace is 560 now i386 and amd64 only. 561 dtruss(1) is now installed by default on those systems and a new 562 kernel module is needed for userland tracing: fasttrap. 563 No changes to your kernel config file are necessary to enable 564 userland tracing, but you might consider adding 'STRIP=' and 565 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 566 to have informative userland stack traces in DTrace (ustack). 567 56820100725: 569 The acpi_aiboost(4) driver has been removed in favor of the new 570 aibs(4) driver. You should update your kernel configuration file. 571 57220100722: 573 BSD grep has been imported to the base system and it is built by 574 default. It is completely BSD licensed, highly GNU-compatible, uses 575 less memory than its GNU counterpart and has a small codebase. 576 However, it is slower than its GNU counterpart, which is mostly 577 noticeable for larger searches, for smaller ones it is measurable 578 but not significant. The reason is complex, the most important factor 579 is that we lack a modern and efficient regex library and GNU 580 overcomes this by optimizing the searches internally. Future work 581 on improving the regex performance is planned, for the meantime, 582 users that need better performance, can build GNU grep instead by 583 setting the WITH_GNU_GREP knob. 584 58520100713: 586 Due to the import of powerpc64 support, all existing powerpc kernel 587 configuration files must be updated with a machine directive like this: 588 machine powerpc powerpc 589 590 In addition, an updated config(8) is required to build powerpc kernels 591 after this change. 592 59320100713: 594 A new version of ZFS (version 15) has been merged to -HEAD. 595 This version uses a python library for the following subcommands: 596 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 597 For full functionality of these commands the following port must 598 be installed: sysutils/py-zfs 599 60020100429: 601 'vm_page's are now hashed by physical address to an array of mutexes. 602 Currently this is only used to serialize access to hold_count. Over 603 time the page queue mutex will be peeled away. This changes the size 604 of pmap on every architecture. And requires all callers of vm_page_hold 605 and vm_page_unhold to be updated. 606 60720100402: 608 WITH_CTF can now be specified in src.conf (not recommended, there 609 are some problems with static executables), make.conf (would also 610 affect ports which do not use GNU make and do not override the 611 compile targets) or in the kernel config (via "makeoptions 612 WITH_CTF=yes"). 613 When WITH_CTF was specified there before this was silently ignored, 614 so make sure that WITH_CTF is not used in places which could lead 615 to unwanted behavior. 616 61720100311: 618 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 619 to allow 32-bit compatibility on non-x86 platforms. All kernel 620 configurations on amd64 and ia64 platforms using these options must 621 be modified accordingly. 622 62320100113: 624 The utmp user accounting database has been replaced with utmpx, 625 the user accounting interface standardized by POSIX. 626 Unfortunately the semantics of utmp and utmpx don't match, 627 making it practically impossible to support both interfaces. 628 The user accounting database is used by tools like finger(1), 629 last(1), talk(1), w(1) and ac(8). 630 631 All applications in the base system use utmpx. This means only 632 local binaries (e.g. from the ports tree) may still use these 633 utmp database files. These applications must be rebuilt to make 634 use of utmpx. 635 636 After the system has been upgraded, it is safe to remove the old 637 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 638 assuming their contents is of no importance anymore. Old wtmp 639 databases can only be used by last(1) and ac(8) after they have 640 been converted to the new format using wtmpcvt(1). 641 64220100108: 643 Introduce the kernel thread "deadlock resolver" (which can be enabled 644 via the DEADLKRES option, see NOTES for more details) and the 645 sleepq_type() function for sleepqueues. 646 64720091202: 648 The rc.firewall and rc.firewall6 were unified, and 649 rc.firewall6 and rc.d/ip6fw were removed. 650 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 651 variables are obsoleted. Instead, the following new rc 652 variables are added to rc.d/ipfw: 653 654 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 655 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 656 firewall_simple_onet_ipv6, firewall_trusted_ipv6 657 658 The meanings correspond to the relevant IPv4 variables. 659 66020091125: 661 8.0-RELEASE. 662 66320091113: 664 The default terminal emulation for syscons(4) has been changed 665 from cons25 to xterm on all platforms except pc98. This means 666 that the /etc/ttys file needs to be updated to ensure correct 667 operation of applications on the console. 668 669 The terminal emulation style can be toggled per window by using 670 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 671 options can be used to change the compile-time default back to 672 cons25. 673 674 To prevent graphical artifacts, make sure the TERM environment 675 variable is set to match the terminal emulation that is being 676 performed by syscons(4). 677 67820091109: 679 The layout of the structure ieee80211req_scan_result has changed. 680 Applications that require wireless scan results (e.g. ifconfig(8)) 681 from net80211 need to be recompiled. 682 683 Applications such as wpa_supplicant(8) may require a full world 684 build without using NO_CLEAN in order to get synchronized with the 685 new structure. 686 68720091025: 688 The iwn(4) driver has been updated to support the 5000 and 5150 series. 689 There's one kernel module for each firmware. Adding "device iwnfw" 690 to the kernel configuration file means including all three firmware 691 images inside the kernel. If you want to include just the one for 692 your wireless card, use the devices iwn4965fw, iwn5000fw or 693 iwn5150fw. 694 69520090926: 696 The rc.d/network_ipv6, IPv6 configuration script has been integrated 697 into rc.d/netif. The changes are the following: 698 699 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 700 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 701 Note that both variables need the "inet6" keyword at the head. 702 703 Do not set $ipv6_network_interfaces manually if you do not 704 understand what you are doing. It is not needed in most cases. 705 706 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 707 they are obsolete. 708 709 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 710 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 711 712 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 713 all configured interfaces have "inet6 accept_rtadv" in the 714 $ifconfig_IF_ipv6. These are for backward compatibility. 715 716 3. A new variable $ipv6_prefer has been added. If NO, IPv6 717 functionality of interfaces with no corresponding 718 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 719 and the default address selection policy of ip6addrctl(8) 720 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 721 Note that if you want to configure IPv6 functionality on the 722 disabled interfaces after boot, first you need to clear the flag by 723 using ifconfig(8) like: 724 725 ifconfig em0 inet6 -ifdisabled 726 727 If YES, the default address selection policy is set as 728 IPv6-preferred. 729 730 The default value of $ipv6_prefer is NO. 731 732 4. If your system need to receive Router Advertisement messages, 733 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 734 scripts automatically invoke rtsol(8) when the interface becomes 735 UP. The Router Advertisement messages are used for SLAAC 736 (State-Less Address AutoConfiguration). 737 73820090922: 739 802.11s D3.03 support was committed. This is incompatible with the 740 previous code, which was based on D3.0. 741 74220090912: 743 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 744 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 745 control whether accepting Router Advertisement messages or not. 746 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 747 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 748 The ifconfig(8) utility now supports these flags. 749 75020090910: 751 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 752 mount(8) and -a option for df(1) to see them. 753 75420090825: 755 The old tunable hw.bus.devctl_disable has been superseded by 756 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 757 replaced by hw.bus.devctl_queue=0. The default for this new tunable 758 is 1000. 759 76020090813: 761 Remove the option STOP_NMI. The default action is now to use NMI only 762 for KDB via the newly introduced function stop_cpus_hard() and 763 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 764 76520090803: 766 The stable/8 branch created in subversion. This corresponds to the 767 RELENG_8 branch in CVS. 768 76920090719: 770 Bump the shared library version numbers for all libraries that do not 771 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 772 __FreeBSD_version to 800105. 773 77420090714: 775 Due to changes in the implementation of virtual network stack support, 776 all network-related kernel modules must be recompiled. As this change 777 breaks the ABI, bump __FreeBSD_version to 800104. 778 77920090713: 780 The TOE interface to the TCP syncache has been modified to remove 781 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 782 The cxgb driver is the only TOE consumer affected by this change, and 783 needs to be recompiled along with the kernel. As this change breaks 784 the ABI, bump __FreeBSD_version to 800103. 785 78620090712: 787 Padding has been added to struct tcpcb, sackhint and tcpstat in 788 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 789 maintaining the ABI. However, this change breaks the ABI, so bump 790 __FreeBSD_version to 800102. User space tools that rely on the size of 791 any of these structs (e.g. sockstat) need to be recompiled. 792 79320090630: 794 The NFS_LEGACYRPC option has been removed along with the old kernel 795 RPC implementation that this option selected. Kernel configurations 796 may need to be adjusted. 797 79820090629: 799 The network interface device nodes at /dev/net/<interface> have been 800 removed. All ioctl operations can be performed the normal way using 801 routing sockets. The kqueue functionality can generally be replaced 802 with routing sockets. 803 80420090628: 805 The documentation from the FreeBSD Documentation Project (Handbook, 806 FAQ, etc.) is now installed via packages by sysinstall(8) and under 807 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 808 80920090624: 810 The ABI of various structures related to the SYSV IPC API have been 811 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 812 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 813 800100. 814 81520090622: 816 Layout of struct vnet has changed as routing related variables were 817 moved to their own Vimage module. Modules need to be recompiled. Bump 818 __FreeBSD_version to 800099. 819 82020090619: 821 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 822 respectively. As long as no more than 16 groups per process are used, 823 no changes should be visible. When more than 16 groups are used, old 824 binaries may fail if they call getgroups() or getgrouplist() with 825 statically sized storage. Recompiling will work around this, but 826 applications should be modified to use dynamically allocated storage 827 for group arrays as POSIX.1-2008 does not cap an implementation's 828 number of supported groups at NGROUPS_MAX+1 as previous versions did. 829 830 NFS and portalfs mounts may also be affected as the list of groups is 831 truncated to 16. Users of NFS who use more than 16 groups, should 832 take care that negative group permissions are not used on the exported 833 file systems as they will not be reliable unless a GSSAPI based 834 authentication method is used. 835 83620090616: 837 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 838 option compiles in the support for adaptive spinning for lockmgrs 839 which want to enable it. The lockinit() function now accepts the flag 840 LK_ADAPTIVE in order to make the lock object subject to adaptive 841 spinning when both held in write and read mode. 842 84320090613: 844 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 845 changed. User applications that use this ioctl need to be rebuilt. 846 84720090611: 848 The layout of struct thread has changed. Kernel and modules need to 849 be rebuilt. 850 85120090608: 852 The layout of structs ifnet, domain, protosw and vnet_net has changed. 853 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 854 85520090602: 856 window(1) has been removed from the base system. It can now be 857 installed from ports. The port is called misc/window. 858 85920090601: 860 The way we are storing and accessing `routing table' entries has 861 changed. Programs reading the FIB, like netstat, need to be 862 re-compiled. 863 86420090601: 865 A new netisr implementation has been added for FreeBSD 8. Network 866 file system modules, such as igmp, ipdivert, and others, should be 867 rebuilt. 868 Bump __FreeBSD_version to 800096. 869 87020090530: 871 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 872 more valid. 873 87420090530: 875 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 876 Bump __FreeBSD_version to 800094. 877 87820090529: 879 Add mnt_xflag field to 'struct mount'. File system modules need to be 880 rebuilt. 881 Bump __FreeBSD_version to 800093. 882 88320090528: 884 The compiling option ADAPTIVE_SX has been retired while it has been 885 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 886 The KPI for sx_init_flags() changes as accepting flags: 887 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 888 been introduced in order to handle the reversed logic. 889 Bump __FreeBSD_version to 800092. 890 89120090527: 892 Add support for hierarchical jails. Remove global securelevel. 893 Bump __FreeBSD_version to 800091. 894 89520090523: 896 The layout of struct vnet_net has changed, therefore modules 897 need to be rebuilt. 898 Bump __FreeBSD_version to 800090. 899 90020090523: 901 The newly imported zic(8) produces a new format in the output. Please 902 run tzsetup(8) to install the newly created data to /etc/localtime. 903 90420090520: 905 The sysctl tree for the usb stack has renamed from hw.usb2.* to 906 hw.usb.* and is now consistent again with previous releases. 907 90820090520: 909 802.11 monitor mode support was revised and driver api's were changed. 910 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 911 of DLT_IEEE802_11. No user-visible data structures were changed but 912 applications that use DLT_IEEE802_11 may require changes. 913 Bump __FreeBSD_version to 800088. 914 91520090430: 916 The layout of the following structs has changed: sysctl_oid, 917 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 918 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 919 panics may be experienced. World rebuild is required for 920 correctly checking networking state from userland. 921 Bump __FreeBSD_version to 800085. 922 92320090429: 924 MLDv2 and Source-Specific Multicast (SSM) have been merged 925 to the IPv6 stack. VIMAGE hooks are in but not yet used. 926 The implementation of SSM within FreeBSD's IPv6 stack closely 927 follows the IPv4 implementation. 928 929 For kernel developers: 930 931 * The most important changes are that the ip6_output() and 932 ip6_input() paths no longer take the IN6_MULTI_LOCK, 933 and this lock has been downgraded to a non-recursive mutex. 934 935 * As with the changes to the IPv4 stack to support SSM, filtering 936 of inbound multicast traffic must now be performed by transport 937 protocols within the IPv6 stack. This does not apply to TCP and 938 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 939 940 * The KPIs used by IPv6 multicast are similar to those used by 941 the IPv4 stack, with the following differences: 942 * im6o_mc_filter() is analogous to imo_multicast_filter(). 943 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 944 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 945 * IN6_LOOKUP_MULTI() has been deprecated and removed. 946 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 947 for MLDv1 have an additional 'timer' argument which is used to 948 jitter the initial membership report for the solicited-node 949 multicast membership on-link. 950 * This is not strictly needed for MLDv2, which already jitters 951 its report transmissions. However, the 'timer' argument is 952 preserved in case MLDv1 is active on the interface. 953 954 * The KAME linked-list based IPv6 membership implementation has 955 been refactored to use a vector similar to that used by the IPv4 956 stack. 957 Code which maintains a list of its own multicast memberships 958 internally, e.g. carp, has been updated to reflect the new 959 semantics. 960 961 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 962 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 963 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 964 implementation constraint which needs to be addressed in HEAD. 965 966 For application developers: 967 968 * The changes are broadly similar to those made for the IPv4 969 stack. 970 971 * The use of IPv4 and IPv6 multicast socket options on the same 972 socket, using mapped addresses, HAS NOT been tested or supported. 973 974 * There are a number of issues with the implementation of various 975 IPv6 multicast APIs which need to be resolved in the API surface 976 before the implementation is fully compatible with KAME userland 977 use, and these are mostly to do with interface index treatment. 978 979 * The literature available discusses the use of either the delta / ASM 980 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 981 using setsourcefilter(3)/getsourcefilter(3). For more information 982 please refer to RFC 3768, 'Socket Interface Extensions for 983 Multicast Source Filters'. 984 985 * Applications which use the published RFC 3678 APIs should be fine. 986 987 For systems administrators: 988 989 * The mtest(8) utility has been refactored to support IPv6, in 990 addition to IPv4. Interface addresses are no longer accepted 991 as arguments, their names must be used instead. The utility 992 will map the interface name to its first IPv4 address as 993 returned by getifaddrs(3). 994 995 * The ifmcstat(8) utility has also been updated to print the MLDv2 996 endpoint state and source filter lists via sysctl(3). 997 998 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 999 loopback of IPv6 multicast datagrams by default; it defaults to 1 1000 to preserve the existing behaviour. Disabling multicast loopback is 1001 recommended for optimal system performance. 1002 1003 * The IPv6 MROUTING code has been changed to examine this sysctl 1004 instead of attempting to perform a group lookup before looping 1005 back forwarded datagrams. 1006 1007 Bump __FreeBSD_version to 800084. 1008 100920090422: 1010 Implement low-level Bluetooth HCI API. 1011 Bump __FreeBSD_version to 800083. 1012 101320090419: 1014 The layout of struct malloc_type, used by modules to register new 1015 memory allocation types, has changed. Most modules will need to 1016 be rebuilt or panics may be experienced. 1017 Bump __FreeBSD_version to 800081. 1018 101920090415: 1020 Anticipate overflowing inp_flags - add inp_flags2. 1021 This changes most offsets in inpcb, so checking v4 connection 1022 state will require a world rebuild. 1023 Bump __FreeBSD_version to 800080. 1024 102520090415: 1026 Add an llentry to struct route and struct route_in6. Modules 1027 embedding a struct route will need to be recompiled. 1028 Bump __FreeBSD_version to 800079. 1029 103020090414: 1031 The size of rt_metrics_lite and by extension rtentry has changed. 1032 Networking administration apps will need to be recompiled. 1033 The route command now supports show as an alias for get, weighting 1034 of routes, sticky and nostick flags to alter the behavior of stateful 1035 load balancing. 1036 Bump __FreeBSD_version to 800078. 1037 103820090408: 1039 Do not use Giant for kbdmux(4) locking. This is wrong and 1040 apparently causing more problems than it solves. This will 1041 re-open the issue where interrupt handlers may race with 1042 kbdmux(4) in polling mode. Typical symptoms include (but 1043 not limited to) duplicated and/or missing characters when 1044 low level console functions (such as gets) are used while 1045 interrupts are enabled (for example geli password prompt, 1046 mountroot prompt etc.). Disabling kbdmux(4) may help. 1047 104820090407: 1049 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1050 kernel modules referencing any of the above need to be recompiled. 1051 Bump __FreeBSD_version to 800075. 1052 105320090320: 1054 GEOM_PART has become the default partition slicer for storage devices, 1055 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1056 introduces some changes: 1057 1058 MSDOS/EBR: the devices created from MSDOS extended partition entries 1059 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1060 to devices with offset-based names. fstabs may need to be modified. 1061 1062 BSD: the "geometry does not match label" warning is harmless in most 1063 cases but it points to problems in file system misalignment with 1064 disk geometry. The "c" partition is now implicit, covers the whole 1065 top-level drive and cannot be (mis)used by users. 1066 1067 General: Kernel dumps are now not allowed to be written to devices 1068 whose partition types indicate they are meant to be used for file 1069 systems (or, in case of MSDOS partitions, as something else than 1070 the "386BSD" type). 1071 1072 Most of these changes date approximately from 200812. 1073 107420090319: 1075 The uscanner(4) driver has been removed from the kernel. This follows 1076 Linux removing theirs in 2.6 and making libusb the default interface 1077 (supported by sane). 1078 107920090319: 1080 The multicast forwarding code has been cleaned up. netstat(1) 1081 only relies on KVM now for printing bandwidth upcall meters. 1082 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1083 ip6_mroute_mod respectively. The config(5) options for statically 1084 compiling this code remain the same, i.e. 'options MROUTING'. 1085 108620090315: 1087 Support for the IFF_NEEDSGIANT network interface flag has been 1088 removed, which means that non-MPSAFE network device drivers are no 1089 longer supported. In particular, if_ar, if_sr, and network device 1090 drivers from the old (legacy) USB stack can no longer be built or 1091 used. 1092 109320090313: 1094 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1095 a bunch of new language catalog files have also been added. 1096 This means that some common libc messages are now localized and 1097 they depend on the LC_MESSAGES environmental variable. 1098 109920090313: 1100 The k8temp(4) driver has been renamed to amdtemp(4) since 1101 support for Family 10 and Family 11 CPU families was added. 1102 110320090309: 1104 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1105 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1106 1107 For kernel developers, the most important changes are that the 1108 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1109 and this lock has been downgraded to a non-recursive mutex. 1110 1111 Transport protocols (UDP, Raw IP) are now responsible for filtering 1112 inbound multicast traffic according to group membership and source 1113 filters. The imo_multicast_filter() KPI exists for this purpose. 1114 Transports which do not use multicast (SCTP, TCP) already reject 1115 multicast by default. Forwarding and receive performance may improve 1116 as a mutex acquisition is no longer needed in the ip_input() 1117 low-level input path. in_addmulti() and in_delmulti() are shimmed 1118 to new KPIs which exist to support SSM in-kernel. 1119 1120 For application developers, it is recommended that loopback of 1121 multicast datagrams be disabled for best performance, as this 1122 will still cause the lock to be taken for each looped-back 1123 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1124 be tuned to 0 to disable loopback by default; it defaults to 1 1125 to preserve the existing behaviour. 1126 1127 For systems administrators, to obtain best performance with 1128 multicast reception and multiple groups, it is always recommended 1129 that a card with a suitably precise hash filter is used. Hash 1130 collisions will still result in the lock being taken within the 1131 transport protocol input path to check group membership. 1132 1133 If deploying FreeBSD in an environment with IGMP snooping switches, 1134 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1135 enabled; this forces 224.0.0.0/24 group membership to be announced 1136 via IGMP. 1137 1138 The size of 'struct igmpstat' has changed; netstat needs to be 1139 recompiled to reflect this. 1140 Bump __FreeBSD_version to 800070. 1141 114220090309: 1143 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1144 updated to use it. This requires a buildworld/installworld in order to 1145 update the library and dependencies (usbconfig, etc). Its advisable to 1146 rebuild all ports which uses libusb. More specific directions are given 1147 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1148 libusb are no longer required and can be removed. 1149 115020090302: 1151 A workaround is committed to allow the creation of System V shared 1152 memory segment of size > 2 GB on the 64-bit architectures. 1153 Due to a limitation of the existing ABI, the shm_segsz member 1154 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1155 wrong for large segments. Note that limits must be explicitly 1156 raised to allow such segments to be created. 1157 115820090301: 1159 The layout of struct ifnet has changed, requiring a rebuild of all 1160 network device driver modules. 1161 116220090227: 1163 The /dev handling for the new USB stack has changed, a 1164 buildworld/installworld is required for libusb20. 1165 116620090223: 1167 The new USB2 stack has now been permanently moved in and all kernel and 1168 module names reverted to their previous values (eg, usb, ehci, ohci, 1169 ums, ...). The old usb stack can be compiled in by prefixing the name 1170 with the letter 'o', the old usb modules have been removed. 1171 Updating entry 20090216 for xorg and 20090215 for libmap may still 1172 apply. 1173 117420090217: 1175 The rc.conf(5) option if_up_delay has been renamed to 1176 defaultroute_delay to better reflect its purpose. If you have 1177 customized this setting in /etc/rc.conf you need to update it to 1178 use the new name. 1179 118020090216: 1181 xorg 7.4 wants to configure its input devices via hald which does not 1182 yet work with USB2. If the keyboard/mouse does not work in xorg then 1183 add 1184 Option "AllowEmptyInput" "off" 1185 to your ServerLayout section. This will cause X to use the configured 1186 kbd and mouse sections from your xorg.conf. 1187 118820090215: 1189 The GENERIC kernels for all architectures now default to the new USB2 1190 stack. No kernel config options or code have been removed so if a 1191 problem arises please report it and optionally revert to the old USB 1192 stack. If you are loading USB kernel modules or have a custom kernel 1193 that includes GENERIC then ensure that usb names are also changed over, 1194 eg uftdi -> usb2_serial_ftdi. 1195 1196 Older programs linked against the ports libusb 0.1 need to be 1197 redirected to the new stack's libusb20. /etc/libmap.conf can 1198 be used for this: 1199 # Map old usb library to new one for usb2 stack 1200 libusb-0.1.so.8 libusb20.so.1 1201 120220090209: 1203 All USB ethernet devices now attach as interfaces under the name ueN 1204 (eg. ue0). This is to provide a predictable name as vendors often 1205 change usb chipsets in a product without notice. 1206 120720090203: 1208 The ichsmb(4) driver has been changed to require SMBus slave 1209 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1210 All of the other SMBus controller drivers require left-justified 1211 slave addresses, so this change makes all the drivers provide the 1212 same interface. 1213 121420090201: 1215 INET6 statistics (struct ip6stat) was updated. 1216 netstat(1) needs to be recompiled. 1217 121820090119: 1219 NTFS has been removed from GENERIC kernel on amd64 to match 1220 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1221 will load ntfs.ko module automatically when NTFS support is 1222 actually needed, unless ntfs.ko is not installed or security 1223 level prohibits loading kernel modules. If either is the case, 1224 "options NTFS" has to be added into kernel config. 1225 122620090115: 1227 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1228 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1229 800061. User space tools that rely on the size of struct tcpcb in 1230 tcp_var.h (e.g. sockstat) need to be recompiled. 1231 123220081225: 1233 ng_tty(4) module updated to match the new TTY subsystem. 1234 Due to API change, user-level applications must be updated. 1235 New API support added to mpd5 CVS and expected to be present 1236 in next mpd5.3 release. 1237 123820081219: 1239 With __FreeBSD_version 800060 the makefs tool is part of 1240 the base system (it was a port). 1241 124220081216: 1243 The afdata and ifnet locks have been changed from mutexes to 1244 rwlocks, network modules will need to be re-compiled. 1245 124620081214: 1247 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1248 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1249 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1250 architecture and 40 bytes on 64-bit architecture. The userland 1251 applications "arp" and "ndp" have been updated accordingly. 1252 The output from "netstat -r" shows only routing entries and 1253 none of the L2 information. 1254 125520081130: 1256 __FreeBSD_version 800057 marks the switchover from the 1257 binary ath hal to source code. Users must add the line: 1258 1259 options AH_SUPPORT_AR5416 1260 1261 to their kernel config files when specifying: 1262 1263 device ath_hal 1264 1265 The ath_hal module no longer exists; the code is now compiled 1266 together with the driver in the ath module. It is now 1267 possible to tailor chip support (i.e. reduce the set of chips 1268 and thereby the code size); consult ath_hal(4) for details. 1269 127020081121: 1271 __FreeBSD_version 800054 adds memory barriers to 1272 <machine/atomic.h>, new interfaces to ifnet to facilitate 1273 multiple hardware transmit queues for cards that support 1274 them, and a lock-less ring-buffer implementation to 1275 enable drivers to more efficiently manage queueing of 1276 packets. 1277 127820081117: 1279 A new version of ZFS (version 13) has been merged to -HEAD. 1280 This version has zpool attribute "listsnapshots" off by 1281 default, which means "zfs list" does not show snapshots, 1282 and is the same as Solaris behavior. 1283 128420081028: 1285 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1286 128720081009: 1288 The uhci, ohci, ehci and slhci USB Host controller drivers have 1289 been put into separate modules. If you load the usb module 1290 separately through loader.conf you will need to load the 1291 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1292 controller add the following to loader.conf: 1293 1294 uhci_load="YES" 1295 ehci_load="YES" 1296 129720081009: 1298 The ABI used by the PMC toolset has changed. Please keep 1299 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1300 sync. 1301 130220081009: 1303 atapci kernel module now includes only generic PCI ATA 1304 driver. AHCI driver moved to ataahci kernel module. 1305 All vendor-specific code moved into separate kernel modules: 1306 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1307 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1308 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1309 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1310 131120080820: 1312 The TTY subsystem of the kernel has been replaced by a new 1313 implementation, which provides better scalability and an 1314 improved driver model. Most common drivers have been migrated to 1315 the new TTY subsystem, while others have not. The following 1316 drivers have not yet been ported to the new TTY layer: 1317 1318 PCI/ISA: 1319 cy, digi, rc, rp, sio 1320 1321 USB: 1322 ubser, ucycom 1323 1324 Line disciplines: 1325 ng_h4, ng_tty, ppp, sl, snp 1326 1327 Adding these drivers to your kernel configuration file shall 1328 cause compilation to fail. 1329 133020080818: 1331 ntpd has been upgraded to 4.2.4p5. 1332 133320080801: 1334 OpenSSH has been upgraded to 5.1p1. 1335 1336 For many years, FreeBSD's version of OpenSSH preferred DSA 1337 over RSA for host and user authentication keys. With this 1338 upgrade, we've switched to the vendor's default of RSA over 1339 DSA. This may cause upgraded clients to warn about unknown 1340 host keys even for previously known hosts. Users should 1341 follow the usual procedure for verifying host keys before 1342 accepting the RSA key. 1343 1344 This can be circumvented by setting the "HostKeyAlgorithms" 1345 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1346 command line. 1347 1348 Please note that the sequence of keys offered for 1349 authentication has been changed as well. You may want to 1350 specify IdentityFile in a different order to revert this 1351 behavior. 1352 135320080713: 1354 The sio(4) driver has been removed from the i386 and amd64 1355 kernel configuration files. This means uart(4) is now the 1356 default serial port driver on those platforms as well. 1357 1358 To prevent collisions with the sio(4) driver, the uart(4) driver 1359 uses different names for its device nodes. This means the 1360 onboard serial port will now most likely be called "ttyu0" 1361 instead of "ttyd0". You may need to reconfigure applications to 1362 use the new device names. 1363 1364 When using the serial port as a boot console, be sure to update 1365 /boot/device.hints and /etc/ttys before booting the new kernel. 1366 If you forget to do so, you can still manually specify the hints 1367 at the loader prompt: 1368 1369 set hint.uart.0.at="isa" 1370 set hint.uart.0.port="0x3F8" 1371 set hint.uart.0.flags="0x10" 1372 set hint.uart.0.irq="4" 1373 boot -s 1374 137520080609: 1376 The gpt(8) utility has been removed. Use gpart(8) to partition 1377 disks instead. 1378 137920080603: 1380 The version that Linuxulator emulates was changed from 2.4.2 1381 to 2.6.16. If you experience any problems with Linux binaries 1382 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1383 if it fixes the problem contact emulation mailing list. 1384 138520080525: 1386 ISDN4BSD (I4B) was removed from the src tree. You may need to 1387 update a your kernel configuration and remove relevant entries. 1388 138920080509: 1390 I have checked in code to support multiple routing tables. 1391 See the man pages setfib(1) and setfib(2). 1392 This is a hopefully backwards compatible version, 1393 but to make use of it you need to compile your kernel 1394 with options ROUTETABLES=2 (or more up to 16). 1395 139620080420: 1397 The 802.11 wireless support was redone to enable multi-bss 1398 operation on devices that are capable. The underlying device 1399 is no longer used directly but instead wlanX devices are 1400 cloned with ifconfig. This requires changes to rc.conf files. 1401 For example, change: 1402 ifconfig_ath0="WPA DHCP" 1403 to 1404 wlans_ath0=wlan0 1405 ifconfig_wlan0="WPA DHCP" 1406 see rc.conf(5) for more details. In addition, mergemaster of 1407 /etc/rc.d is highly recommended. Simultaneous update of userland 1408 and kernel wouldn't hurt either. 1409 1410 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1411 modules were merged into the base wlan module. All references 1412 to these modules (e.g. in kernel config files) must be removed. 1413 141420080408: 1415 psm(4) has gained write(2) support in native operation level. 1416 Arbitrary commands can be written to /dev/psm%d and status can 1417 be read back from it. Therefore, an application is responsible 1418 for status validation and error recovery. It is a no-op in 1419 other operation levels. 1420 142120080312: 1422 Support for KSE threading has been removed from the kernel. To 1423 run legacy applications linked against KSE libmap.conf may 1424 be used. The following libmap.conf may be used to ensure 1425 compatibility with any prior release: 1426 1427 libpthread.so.1 libthr.so.1 1428 libpthread.so.2 libthr.so.2 1429 libkse.so.3 libthr.so.3 1430 143120080301: 1432 The layout of struct vmspace has changed. This affects libkvm 1433 and any executables that link against libkvm and use the 1434 kvm_getprocs() function. In particular, but not exclusively, 1435 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1436 The effects are minimal, but it's advisable to upgrade world 1437 nonetheless. 1438 143920080229: 1440 The latest em driver no longer has support in it for the 1441 82575 adapter, this is now moved to the igb driver. The 1442 split was done to make new features that are incompatible 1443 with older hardware easier to do. 1444 144520080220: 1446 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1447 likewise the kernel option is now GEOM_LINUX_LVM. 1448 144920080211: 1450 The default NFS mount mode has changed from UDP to TCP for 1451 increased reliability. If you rely on (insecurely) NFS 1452 mounting across a firewall you may need to update your 1453 firewall rules. 1454 145520080208: 1456 Belatedly note the addition of m_collapse for compacting 1457 mbuf chains. 1458 145920080126: 1460 The fts(3) structures have been changed to use adequate 1461 integer types for their members and so to be able to cope 1462 with huge file trees. The old fts(3) ABI is preserved 1463 through symbol versioning in libc, so third-party binaries 1464 using fts(3) should still work, although they will not take 1465 advantage of the extended types. At the same time, some 1466 third-party software might fail to build after this change 1467 due to unportable assumptions made in its source code about 1468 fts(3) structure members. Such software should be fixed 1469 by its vendor or, in the worst case, in the ports tree. 1470 FreeBSD_version 800015 marks this change for the unlikely 1471 case that a portable fix is impossible. 1472 147320080123: 1474 To upgrade to -current after this date, you must be running 1475 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1476 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1477 147820071128: 1479 The ADAPTIVE_GIANT kernel option has been retired because its 1480 functionality is the default now. 1481 148220071118: 1483 The AT keyboard emulation of sunkbd(4) has been turned on 1484 by default. In order to make the special symbols of the Sun 1485 keyboards driven by sunkbd(4) work under X these now have 1486 to be configured the same way as Sun USB keyboards driven 1487 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1488 1489 Option "XkbLayout" "us" 1490 Option "XkbRules" "xorg" 1491 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1492 149320071024: 1494 It has been decided that it is desirable to provide ABI 1495 backwards compatibility to the FreeBSD 4/5/6 versions of the 1496 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1497 broken with the introduction of PCI domain support (see the 1498 20070930 entry). Unfortunately, this required the ABI of 1499 PCIOCGETCONF to be broken again in order to be able to 1500 provide backwards compatibility to the old version of that 1501 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1502 again. As for prominent ports this affects neither pciutils 1503 nor xorg-server this time, the hal port needs to be rebuilt 1504 however. 1505 150620071020: 1507 The misnamed kthread_create() and friends have been renamed 1508 to kproc_create() etc. Many of the callers already 1509 used kproc_start().. 1510 I will return kthread_create() and friends in a while 1511 with implementations that actually create threads, not procs. 1512 Renaming corresponds with version 800002. 1513 151420071010: 1515 RELENG_7 branched. 1516 1517COMMON ITEMS: 1518 1519 General Notes 1520 ------------- 1521 Avoid using make -j when upgrading. While generally safe, there are 1522 sometimes problems using -j to upgrade. If your upgrade fails with 1523 -j, please try again without -j. From time to time in the past there 1524 have been problems using -j with buildworld and/or installworld. This 1525 is especially true when upgrading between "distant" versions (eg one 1526 that cross a major release boundary or several minor releases, or when 1527 several months have passed on the -current branch). 1528 1529 Sometimes, obscure build problems are the result of environment 1530 poisoning. This can happen because the make utility reads its 1531 environment when searching for values for global variables. To run 1532 your build attempts in an "environmental clean room", prefix all make 1533 commands with 'env -i '. See the env(1) manual page for more details. 1534 1535 When upgrading from one major version to another it is generally best 1536 to upgrade to the latest code in the currently installed branch first, 1537 then do an upgrade to the new branch. This is the best-tested upgrade 1538 path, and has the highest probability of being successful. Please try 1539 this approach before reporting problems with a major version upgrade. 1540 1541 ZFS notes 1542 --------- 1543 When upgrading the boot ZFS pool to a new version, always follow 1544 these two steps: 1545 1546 1.) recompile and reinstall the ZFS boot loader and boot block 1547 (this is part of "make buildworld" and "make installworld") 1548 1549 2.) update the ZFS boot block on your boot drive 1550 1551 The following example updates the ZFS boot block on the first 1552 partition (freebsd-boot) of a GPT partitioned drive ad0: 1553 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 1554 1555 Non-boot pools do not need these updates. 1556 1557 To build a kernel 1558 ----------------- 1559 If you are updating from a prior version of FreeBSD (even one just 1560 a few days old), you should follow this procedure. It is the most 1561 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1562 1563 make kernel-toolchain 1564 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1565 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1566 1567 To test a kernel once 1568 --------------------- 1569 If you just want to boot a kernel once (because you are not sure 1570 if it works, or if you want to boot a known bad kernel to provide 1571 debugging information) run 1572 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1573 nextboot -k testkernel 1574 1575 To just build a kernel when you know that it won't mess you up 1576 -------------------------------------------------------------- 1577 This assumes you are already running a CURRENT system. Replace 1578 ${arch} with the architecture of your machine (e.g. "i386", 1579 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1580 1581 cd src/sys/${arch}/conf 1582 config KERNEL_NAME_HERE 1583 cd ../compile/KERNEL_NAME_HERE 1584 make depend 1585 make 1586 make install 1587 1588 If this fails, go to the "To build a kernel" section. 1589 1590 To rebuild everything and install it on the current system. 1591 ----------------------------------------------------------- 1592 # Note: sometimes if you are running current you gotta do more than 1593 # is listed here if you are upgrading from a really old current. 1594 1595 <make sure you have good level 0 dumps> 1596 make buildworld 1597 make kernel KERNCONF=YOUR_KERNEL_HERE 1598 [1] 1599 <reboot in single user> [3] 1600 mergemaster -p [5] 1601 make installworld 1602 mergemaster -i [4] 1603 make delete-old [6] 1604 <reboot> 1605 1606 1607 To cross-install current onto a separate partition 1608 -------------------------------------------------- 1609 # In this approach we use a separate partition to hold 1610 # current's root, 'usr', and 'var' directories. A partition 1611 # holding "/", "/usr" and "/var" should be about 2GB in 1612 # size. 1613 1614 <make sure you have good level 0 dumps> 1615 <boot into -stable> 1616 make buildworld 1617 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1618 <maybe newfs current's root partition> 1619 <mount current's root partition on directory ${CURRENT_ROOT}> 1620 make installworld DESTDIR=${CURRENT_ROOT} 1621 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1622 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1623 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1624 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1625 <reboot into current> 1626 <do a "native" rebuild/install as described in the previous section> 1627 <maybe install compatibility libraries from ports/misc/compat*> 1628 <reboot> 1629 1630 1631 To upgrade in-place from stable to current 1632 ---------------------------------------------- 1633 <make sure you have good level 0 dumps> 1634 make buildworld [9] 1635 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1636 [1] 1637 <reboot in single user> [3] 1638 mergemaster -p [5] 1639 make installworld 1640 mergemaster -i [4] 1641 make delete-old [6] 1642 <reboot> 1643 1644 Make sure that you've read the UPDATING file to understand the 1645 tweaks to various things you need. At this point in the life 1646 cycle of current, things change often and you are on your own 1647 to cope. The defaults can also change, so please read ALL of 1648 the UPDATING entries. 1649 1650 Also, if you are tracking -current, you must be subscribed to 1651 freebsd-current@freebsd.org. Make sure that before you update 1652 your sources that you have read and understood all the recent 1653 messages there. If in doubt, please track -stable which has 1654 much fewer pitfalls. 1655 1656 [1] If you have third party modules, such as vmware, you 1657 should disable them at this point so they don't crash your 1658 system on reboot. 1659 1660 [3] From the bootblocks, boot -s, and then do 1661 fsck -p 1662 mount -u / 1663 mount -a 1664 cd src 1665 adjkerntz -i # if CMOS is wall time 1666 Also, when doing a major release upgrade, it is required that 1667 you boot into single user mode to do the installworld. 1668 1669 [4] Note: This step is non-optional. Failure to do this step 1670 can result in a significant reduction in the functionality of the 1671 system. Attempting to do it by hand is not recommended and those 1672 that pursue this avenue should read this file carefully, as well 1673 as the archives of freebsd-current and freebsd-hackers mailing lists 1674 for potential gotchas. The -U option is also useful to consider. 1675 See mergemaster(8) for more information. 1676 1677 [5] Usually this step is a noop. However, from time to time 1678 you may need to do this if you get unknown user in the following 1679 step. It never hurts to do it all the time. You may need to 1680 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1681 install) after the buildworld before this step if you last updated 1682 from [78]-stable or 9-stable before 20130430. 1683 1684 [6] This only deletes old files and directories. Old libraries 1685 can be deleted by "make delete-old-libs", but you have to make 1686 sure that no program is using those libraries anymore. 1687 1688 [8] In order to have a kernel that can run the 4.x binaries needed to 1689 do an installworld, you must include the COMPAT_FREEBSD4 option in 1690 your kernel. Failure to do so may leave you with a system that is 1691 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 1692 required to run the 5.x binaries on more recent kernels. And so on 1693 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 1694 1695 Make sure that you merge any new devices from GENERIC since the 1696 last time you updated your kernel config file. 1697 1698 [9] When checking out sources, you must include the -P flag to have 1699 cvs prune empty directories. 1700 1701 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1702 "?=" instead of the "=" assignment operator, so that buildworld can 1703 override the CPUTYPE if it needs to. 1704 1705 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1706 not on the command line, or in /etc/make.conf. buildworld will 1707 warn if it is improperly defined. 1708FORMAT: 1709 1710This file contains a list, in reverse chronological order, of major 1711breakages in tracking -current. It is not guaranteed to be a complete 1712list of such breakages, and only contains entries since October 10, 2007. 1713If you need to see UPDATING entries from before that date, you will need 1714to fetch an UPDATING file from an older FreeBSD release. 1715 1716Copyright information: 1717 1718Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 1719 1720Redistribution, publication, translation and use, with or without 1721modification, in full or in part, in any form or format of this 1722document are permitted without further permission from the author. 1723 1724THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1725IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1726WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1727DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1728INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1729(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1730SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1731HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1732STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1733IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1734POSSIBILITY OF SUCH DAMAGE. 1735 1736Contact Warner Losh if you have any questions about your use of 1737this document. 1738 1739$FreeBSD: releng/9.3/UPDATING 276157 2014-12-23 22:54:25Z des $ 1740