1Updating Information for FreeBSD current users 2 3This file is maintained and copyrighted by M. Warner Losh <imp@freebsd.org>. 4See end of file for further details. For commonly done items, please see the 5COMMON ITEMS: section later in the file. These instructions assume that you 6basically know what you are doing. If not, then please consult the FreeBSD 7handbook: 8 9 http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/makeworld.html 10 11Items affecting the ports and packages system can be found in 12/usr/ports/UPDATING. Please read that file before running portupgrade. 13 14NOTE TO PEOPLE WHO THINK THAT FreeBSD 10.x IS SLOW: 15 FreeBSD 10.x has many debugging features turned on, in both the kernel 16 and userland. These features attempt to detect incorrect use of 17 system primitives, and encourage loud failure through extra sanity 18 checking and fail stop semantics. They also substantially impact 19 system performance. If you want to do performance measurement, 20 benchmarking, and optimization, you'll want to turn them off. This 21 includes various WITNESS- related kernel options, INVARIANTS, malloc 22 debugging flags in userland, and various verbose features in the 23 kernel. Many developers choose to disable these features on build 24 machines to maximize performance. (To completely disable malloc 25 debugging, define MALLOC_PRODUCTION in /etc/make.conf, or to merely 26 disable the most expensive debugging functionality run 27 "ln -s 'abort:false,junk:false' /etc/malloc.conf".) 28 2920130308: 30 CTL_DISABLE has also been added to the sparc64 GENERIC (for further 31 information, see the respective 20130304 entry). 32 3320130304: 34 Recent commits to callout(9) changed the size of struct callout, 35 so the KBI is probably heavily disturbed. Also, some functions 36 in callout(9)/sleep(9)/sleepqueue(9)/condvar(9) KPIs were replaced 37 by macros. Every kernel module using it won't load, so rebuild 38 is requested. 39 40 The ctl device has been re-enabled in GENERIC for i386 and amd64, 41 but does not initialize by default (because of the new CTL_DISABLE 42 option) to save memory. To re-enable it, remove the CTL_DISABLE 43 option from the kernel config file or set kern.cam.ctl.disable=0 44 in /boot/loader.conf. 45 4620130301: 47 The ctl device has been disabled in GENERIC for i386 and amd64. 48 This was done due to the extra memory being allocated at system 49 initialisation time by the ctl driver which was only used if 50 a CAM target device was created. This makes a FreeBSD system 51 unusable on 128MB or less of RAM. 52 5320130208: 54 A new compression method (lz4) has been merged to -HEAD. Please 55 refer to zpool-features(7) for more information. 56 57 Please refer to the "ZFS notes" section of this file for information 58 on upgrading boot ZFS pools. 59 6020130129: 61 A BSD-licensed patch(1) variant has been added and is installed 62 as bsdpatch, being the GNU version the default patch. 63 To inverse the logic and use the BSD-licensed one as default, 64 while having the GNU version installed as gnupatch, rebuild 65 and install world with the WITH_BSD_PATCH knob set. 66 6720130118: 68 The install(1) option -M has changed meaning and now takes an 69 argument that is a file or path to append logs to. In the 70 unlikely event that -M was the last option on the command line 71 and the command line contained at least two files and a target 72 directory the first file will have logs appended to it. The -M 73 option served little practical purpose in the last decade so its 74 use is expected to be extremely rare. 75 7620121223: 77 After switching to Clang as the default compiler some users of ZFS 78 on i386 systems started to experience stack overflow kernel panics. 79 Please consider using 'options KSTACK_PAGES=4' in such configurations. 80 8120121222: 82 GEOM_LABEL now mangles label names read from file system metadata. 83 Mangling affect labels containing spaces, non-printable characters, 84 '%' or '"'. Device names in /etc/fstab and other places may need to 85 be updated. 86 8720121217: 88 By default, only the 10 most recent kernel dumps will be saved. To 89 restore the previous behaviour (no limit on the number of kernel dumps 90 stored in the dump directory) add the following line to /etc/rc.conf: 91 92 savecore_flags="" 93 9420121201: 95 With the addition of auditdistd(8), a new auditdistd user is now 96 depended on during installworld. "mergemaster -p" can be used to add 97 the user prior to installworld, as documented in the handbook. 98 9920121117: 100 The sin6_scope_id member variable in struct sockaddr_in6 is now 101 filled by the kernel before passing the structure to the userland via 102 sysctl or routing socket. This means the KAME-specific embedded scope 103 id in sin6_addr.s6_addr[2] is always cleared in userland application. 104 This behavior can be controlled by net.inet6.ip6.deembed_scopeid. 105 __FreeBSD_version is bumped to 1000025. 106 10720121105: 108 On i386 and amd64 systems WITH_CLANG_IS_CC is now the default. 109 This means that the world and kernel will be compiled with clang 110 and that clang will be installed as /usr/bin/cc, /usr/bin/c++, 111 and /usr/bin/cpp. To disable this behavior and revert to building 112 with gcc, compile with WITHOUT_CLANG_IS_CC. 113 11420121102: 115 The IPFIREWALL_FORWARD kernel option has been removed. Its 116 functionality now turned on by default. 117 11820121023: 119 The ZERO_COPY_SOCKET kernel option has been removed and 120 split into SOCKET_SEND_COW and SOCKET_RECV_PFLIP. 121 NB: SOCKET_SEND_COW uses the VM page based copy-on-write 122 mechanism which is not safe and may result in kernel crashes. 123 NB: The SOCKET_RECV_PFLIP mechanism is useless as no current 124 driver supports disposeable external page sized mbuf storage. 125 Proper replacements for both zero-copy mechanisms are under 126 consideration and will eventually lead to complete removal 127 of the two kernel options. 128 12920121023: 130 The IPv4 network stack has been converted to network byte 131 order. The following modules need to be recompiled together 132 with kernel: carp(4), divert(4), gif(4), siftr(4), gre(4), 133 pf(4), ipfw(4), ng_ipfw(4), stf(4). 134 13520121022: 136 Support for non-MPSAFE filesystems was removed from VFS. The 137 VFS_VERSION was bumped, all filesystem modules shall be 138 recompiled. 139 14020121018: 141 All the non-MPSAFE filesystems have been disconnected from 142 the build. The full list includes: codafs, hpfs, ntfs, nwfs, 143 portalfs, smbfs, xfs. 144 14520121016: 146 The interface cloning API and ABI has changed. The following 147 modules need to be recompiled together with kernel: 148 ipfw(4), pfsync(4), pflog(4), usb(4), wlan(4), stf(4), 149 vlan(4), disc(4), edsc(4), if_bridge(4), gif(4), tap(4), 150 faith(4), epair(4), enc(4), tun(4), if_lagg(4), gre(4). 151 15220121015: 153 The sdhci driver was split in two parts: sdhci (generic SD Host 154 Controller logic) and sdhci_pci (actual hardware driver). 155 No kernel config modifications are required, but if you 156 load sdhc as a module you must switch to sdhci_pci instead. 157 15820121014: 159 Import the FUSE kernel and userland support into base system. 160 16120121013: 162 The GNU sort(1) program has been removed since the BSD-licensed 163 sort(1) has been the default for quite some time and no serious 164 problems have been reported. The corresponding WITH_GNU_SORT 165 knob has also gone. 166 16720121006: 168 The pfil(9) API/ABI for AF_INET family has been changed. Packet 169 filtering modules: pf(4), ipfw(4), ipfilter(4) need to be recompiled 170 with new kernel. 171 17220121001: 173 The net80211(4) ABI has been changed to allow for improved driver 174 PS-POLL and power-save support. All wireless drivers need to be 175 recompiled to work with the new kernel. 176 17720120913: 178 The random(4) support for the VIA hardware random number 179 generator (`PADLOCK') is no longer enabled unconditionally. 180 Add the PADLOCK_RNG option in the custom kernel config if 181 needed. The GENERIC kernels on i386 and amd64 do include the 182 option, so the change only affects the custom kernel 183 configurations. 184 18520120908: 186 The pf(4) packet filter ABI has been changed. pfctl(8) and 187 snmp_pf module need to be recompiled to work with new kernel. 188 18920120828: 190 A new ZFS feature flag "com.delphix:empty_bpobj" has been merged 191 to -HEAD. Pools that have empty_bpobj in active state can not be 192 imported read-write with ZFS implementations that do not support 193 this feature. For more information read the zpool-features(5) 194 manual page. 195 19620120727: 197 The sparc64 ZFS loader has been changed to no longer try to auto- 198 detect ZFS providers based on diskN aliases but now requires these 199 to be explicitly listed in the OFW boot-device environment variable. 200 20120120712: 202 The OpenSSL has been upgraded to 1.0.1c. Any binaries requiring 203 libcrypto.so.6 or libssl.so.6 must be recompiled. Also, there are 204 configuration changes. Make sure to merge /etc/ssl/openssl.cnf. 205 20620120712: 207 The following sysctls and tunables have been renamed for consistency 208 with other variables: 209 kern.cam.da.da_send_ordered -> kern.cam.da.send_ordered 210 kern.cam.ada.ada_send_ordered -> kern.cam.ada.send_ordered 211 21220120628: 213 The sort utility has been replaced with BSD sort. For now, GNU sort 214 is also available as "gnusort" or the default can be set back to 215 GNU sort by setting WITH_GNU_SORT. In this case, BSD sort will be 216 installed as "bsdsort". 217 21820120611: 219 A new version of ZFS (pool version 5000) has been merged to -HEAD. 220 Starting with this version the old system of ZFS pool versioning 221 is superseded by "feature flags". This concept enables forward 222 compatibility against certain future changes in functionality of ZFS 223 pools. The first read-only compatible "feature flag" for ZFS pools 224 is named "com.delphix:async_destroy". For more information 225 read the new zpool-features(5) manual page. 226 Please refer to the "ZFS notes" section of this file for information 227 on upgrading boot ZFS pools. 228 22920120417: 230 The malloc(3) implementation embedded in libc now uses sources imported 231 as contrib/jemalloc. The most disruptive API change is to 232 /etc/malloc.conf. If your system has an old-style /etc/malloc.conf, 233 delete it prior to installworld, and optionally re-create it using the 234 new format after rebooting. See malloc.conf(5) for details 235 (specifically the TUNING section and the "opt.*" entries in the MALLCTL 236 NAMESPACE section). 237 23820120328: 239 Big-endian MIPS TARGET_ARCH values no longer end in "eb". mips64eb 240 is now spelled mips64. mipsn32eb is now spelled mipsn32. mipseb is 241 now spelled mips. This is to aid compatibility with third-party 242 software that expects this naming scheme in uname(3). Little-endian 243 settings are unchanged. 244 24520120306: 246 Disable by default the option VFS_ALLOW_NONMPSAFE for all supported 247 platforms. 248 24920120229: 250 Now unix domain sockets behave "as expected" on nullfs(5). Previously 251 nullfs(5) did not pass through all behaviours to the underlying layer, 252 as a result if we bound to a socket on the lower layer we could connect 253 only to the lower path; if we bound to the upper layer we could connect 254 only to the upper path. The new behavior is one can connect to both the 255 lower and the upper paths regardless what layer path one binds to. 256 25720120211: 258 The getifaddrs upgrade path broken with 20111215 has been restored. 259 If you have upgraded in between 20111215 and 20120209 you need to 260 recompile libc again with your kernel. You still need to recompile 261 world to be able to configure CARP but this restriction already 262 comes from 20111215. 263 26420120114: 265 The set_rcvar() function has been removed from /etc/rc.subr. All 266 base and ports rc.d scripts have been updated, so if you have a 267 port installed with a script in /usr/local/etc/rc.d you can either 268 hand-edit the rcvar= line, or reinstall the port. 269 270 An easy way to handle the mass-update of /etc/rc.d: 271 rm /etc/rc.d/* && mergemaster -i 272 27320120109: 274 panic(9) now stops other CPUs in the SMP systems, disables interrupts 275 on the current CPU and prevents other threads from running. 276 This behavior can be reverted using the kern.stop_scheduler_on_panic 277 tunable/sysctl. 278 The new behavior can be incompatible with kern.sync_on_panic. 279 28020111215: 281 The carp(4) facility has been changed significantly. Configuration 282 of the CARP protocol via ifconfig(8) has changed, as well as format 283 of CARP events submitted to devd(8) has changed. See manual pages 284 for more information. The arpbalance feature of carp(4) is currently 285 not supported anymore. 286 287 Size of struct in_aliasreq, struct in6_aliasreq has changed. User 288 utilities using SIOCAIFADDR, SIOCAIFADDR_IN6, e.g. ifconfig(8), 289 need to be recompiled. 290 29120111122: 292 The acpi_wmi(4) status device /dev/wmistat has been renamed to 293 /dev/wmistat0. 294 29520111108: 296 The option VFS_ALLOW_NONMPSAFE option has been added in order to 297 explicitely support non-MPSAFE filesystems. 298 It is on by default for all supported platform at this present 299 time. 300 30120111101: 302 The broken amd(4) driver has been replaced with esp(4) in the amd64, 303 i386 and pc98 GENERIC kernel configuration files. 304 30520110930: 306 sysinstall has been removed 307 30820110923: 309 The stable/9 branch created in subversion. This corresponds to the 310 RELENG_9 branch in CVS. 311 31220110913: 313 This commit modifies vfs_register() so that it uses a hash 314 calculation to set vfc_typenum, which is enabled by default. 315 The first time a system is booted after this change, the 316 vfc_typenum values will change for all file systems. The 317 main effect of this is a change to the NFS server file handles 318 for file systems that use vfc_typenum in their fsid, such as ZFS. 319 It will, however, prevent vfc_typenum from changing when file 320 systems are loaded in a different order for subsequent reboots. 321 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf 322 until you are ready to remount all NFS clients after a reboot. 323 32420110828: 325 Bump the shared library version numbers for libraries that 326 do not use symbol versioning, have changed the ABI compared 327 to stable/8 and which shared library version was not bumped. 328 Done as part of 9.0-RELEASE cycle. 329 33020110815: 331 During the merge of Capsicum features, the fget(9) KPI was modified. 332 This may require the rebuilding of out-of-tree device drivers -- 333 issues have been reported specifically with the nVidia device driver. 334 __FreeBSD_version is bumped to 900041. 335 336 Also, there is a period between 20110811 and 20110814 where the 337 special devices /dev/{stdin,stdout,stderr} did not work correctly. 338 Building world from a kernel during that window may not work. 339 34020110628: 341 The packet filter (pf) code has been updated to OpenBSD 4.5. 342 You need to update userland tools to be in sync with kernel. 343 This update breaks backward compatibility with earlier pfsync(4) 344 versions. Care must be taken when updating redundant firewall setups. 345 34620110608: 347 The following sysctls and tunables are retired on x86 platforms: 348 machdep.hlt_cpus 349 machdep.hlt_logical_cpus 350 The following sysctl is retired: 351 machdep.hyperthreading_allowed 352 The sysctls were supposed to provide a way to dynamically offline and 353 online selected CPUs on x86 platforms, but the implementation has not 354 been reliable especially with SCHED_ULE scheduler. 355 machdep.hyperthreading_allowed tunable is still available to ignore 356 hyperthreading CPUs at OS level. 357 Individual CPUs can be disabled using hint.lapic.X.disabled tunable, 358 where X is an APIC ID of a CPU. Be advised, though, that disabling 359 CPUs in non-uniform fashion will result in non-uniform topology and 360 may lead to sub-optimal system performance with SCHED_ULE, which is 361 a default scheduler. 362 36320110607: 364 cpumask_t type is retired and cpuset_t is used in order to describe 365 a mask of CPUs. 366 36720110531: 368 Changes to ifconfig(8) for dynamic address family detection mandate 369 that you are running a kernel of 20110525 or later. Make sure to 370 follow the update procedure to boot a new kernel before installing 371 world. 372 37320110513: 374 Support for sun4v architecture is officially dropped 375 37620110503: 377 Several KPI breaking changes have been committed to the mii(4) layer, 378 the PHY drivers and consequently some Ethernet drivers using mii(4). 379 This means that miibus.ko and the modules of the affected Ethernet 380 drivers need to be recompiled. 381 382 Note to kernel developers: Given that the OUI bit reversion problem 383 was fixed as part of these changes all mii(4) commits related to OUIs, 384 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific 385 handling, no longer can be merged verbatim to stable/8 and previous 386 branches. 387 38820110430: 389 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci' 390 into their kernel configurations along with 'device pci'. 391 39220110427: 393 The default NFS client is now the new NFS client, so fstype "newnfs" 394 is now "nfs" and the regular/old NFS client is now fstype "oldnfs". 395 Although mounts via fstype "nfs" will usually work without userland 396 changes, it is recommended that the mount(8) and mount_nfs(8) 397 commands be rebuilt from sources and that a link to mount_nfs called 398 mount_oldnfs be created. The new client is compiled into the 399 kernel with "options NFSCL" and this is needed for diskless root 400 file systems. The GENERIC kernel configs have been changed to use 401 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER. 402 To use the regular/old client, you can "mount -t oldnfs ...". For 403 a diskless root file system, you must also include a line like: 404 405 vfs.root.mountfrom="oldnfs:" 406 407 in the boot/loader.conf on the root fs on the NFS server to make 408 a diskless root fs use the old client. 409 41020110424: 411 The GENERIC kernels for all architectures now default to the new 412 CAM-based ATA stack. It means that all legacy ATA drivers were 413 removed and replaced by respective CAM drivers. If you are using 414 ATA device names in /etc/fstab or other places, make sure to update 415 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, 416 where 'Y's are the sequential numbers starting from zero for each type 417 in order of detection, unless configured otherwise with tunables, 418 see cam(4)). There will be symbolic links created in /dev/ to map 419 old adX devices to the respective adaY. They should provide basic 420 compatibility for file systems mounting in most cases, but they do 421 not support old user-level APIs and do not have respective providers 422 in GEOM. Consider using updated management tools with new device names. 423 424 It is possible to load devices ahci, ata, siis and mvs as modules, 425 but option ATA_CAM should remain in kernel configuration to make ata 426 module work as CAM driver supporting legacy ATA controllers. Device ata 427 still can be used in modular fashion (atacore + ...). Modules atadisk 428 and atapi* are not used and won't affect operation in ATA_CAM mode. 429 Note that to use CAM-based ATA kernel should include CAM devices 430 scbus, pass, da (or explicitly ada), cd and optionally others. All of 431 them are parts of the cam module. 432 433 ataraid(4) functionality is now supported by the RAID GEOM class. 434 To use it you can load geom_raid kernel module and use graid(8) tool 435 for management. Instead of /dev/arX device names, use /dev/raid/rX. 436 437 No kernel config options or code have been removed, so if a problem 438 arises, please report it and optionally revert to the old ATA stack. 439 In order to do it you can remove from the kernel config: 440 options ATA_CAM 441 device ahci 442 device mvs 443 device siis 444 , and instead add back: 445 device atadisk # ATA disk drives 446 device ataraid # ATA RAID drives 447 device atapicd # ATAPI CDROM drives 448 device atapifd # ATAPI floppy drives 449 device atapist # ATAPI tape drives 450 45120110423: 452 The default NFS server has been changed to the new server, which 453 was referred to as the experimental server. If you need to switch 454 back to the old NFS server, you must now put the "-o" option on 455 both the mountd and nfsd commands. This can be done using the 456 mountd_flags and nfs_server_flags rc.conf variables until an 457 update to the rc scripts is committed, which is coming soon. 458 45920110418: 460 The GNU Objective-C runtime library (libobjc), and other Objective-C 461 related components have been removed from the base system. If you 462 require an Objective-C library, please use one of the available ports. 463 46420110331: 465 ath(4) has been split into bus- and device- modules. if_ath contains 466 the HAL, the TX rate control and the network device code. if_ath_pci 467 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb 468 contains the AHB glue. Users need to load both if_ath_pci and if_ath 469 in order to use ath on everything else. 470 471 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only 472 need to load if_ath and if_ath_pci for ath(4) operation. 473 47420110314: 475 As part of the replacement of sysinstall, the process of building 476 release media has changed significantly. For details, please re-read 477 release(7), which has been updated to reflect the new build process. 478 47920110218: 480 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This 481 is the last available version under GPLv2. It brings a number of new 482 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE 483 4.1 and SSE 4.2), better support for powerpc64, a number of new 484 directives, and lots of other small improvements. See the ChangeLog 485 file in contrib/binutils for the full details. 486 48720110218: 488 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868 489 compliant, and will now use half of hash for authentication. 490 This will break interoperability with all stacks (including all 491 actual FreeBSD versions) who implement 492 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for 493 authentication). 494 The only workaround with such peers is to use another HMAC 495 algorithm for IPsec ("phase 2") authentication. 496 49720110207: 498 Remove the uio_yield prototype and symbol. This function has 499 been misnamed since it was introduced and should not be 500 globally exposed with this name. The equivalent functionality 501 is now available using kern_yield(curthread->td_user_pri). 502 The function remains undocumented. 503 50420110112: 505 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers, 506 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking 507 for scalar sysctls is defined but disabled. Code that needs 508 UQUAD to pass the type checking that must compile on older 509 systems where the define is not present can check against 510 __FreeBSD_version >= 900030. 511 512 The system dialog(1) has been replaced with a new version previously 513 in ports as devel/cdialog. dialog(1) is mostly command-line compatible 514 with the previous version, but the libdialog associated with it has 515 a largely incompatible API. As such, the original version of libdialog 516 will be kept temporarily as libodialog, until its base system consumers 517 are replaced or updated. Bump __FreeBSD_version to 900030. 518 51920110103: 520 If you are trying to run make universe on a -stable system, and you get 521 the following warning: 522 "Makefile", line 356: "Target architecture for i386/conf/GENERIC 523 unknown. config(8) likely too old." 524 or something similar to it, then you must upgrade your -stable system 525 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in 526 stable/8) or build the config from the latest stable/8 branch and 527 install it on your system. 528 529 Prior to this date, building a current universe on 8-stable system from 530 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing 531 error in the first kernel build phase. A new config on those old 532 systems will fix that problem for older versions of -current. 533 53420101228: 535 The TCP stack has been modified to allow Khelp modules to interact with 536 it via helper hook points and store per-connection data in the TCP 537 control block. Bump __FreeBSD_version to 900029. User space tools that 538 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to 539 be recompiled. 540 54120101114: 542 Generic IEEE 802.3 annex 31B full duplex flow control support has been 543 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along 544 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted 545 to take advantage of it instead of using custom implementations. This 546 means that these drivers now no longer unconditionally advertise 547 support for flow control but only do so if flow control is a selected 548 media option. This was implemented in the generic support that way in 549 order to allow flow control to be switched on and off via ifconfig(8) 550 with the PHY specific default to typically off in order to protect 551 from unwanted effects. Consequently, if you used flow control with 552 one of the above mentioned drivers you now need to explicitly enable 553 it, for example via: 554 ifconfig bge0 media auto mediaopt flowcontrol 555 556 Along with the above mentioned changes generic support for setting 557 1000baseT master mode also has been added and brgphy(4), ciphy(4), 558 e1000phy(4) as well as ip1000phy(4) have been converted to take 559 advantage of it. This means that these drivers now no longer take the 560 link0 parameter for selecting master mode but the master media option 561 has to be used instead, for example like in the following: 562 ifconfig bge0 media 1000baseT mediaopt full-duplex,master 563 564 Selection of master mode now is also available with all other PHY 565 drivers supporting 1000baseT. 566 56720101111: 568 The TCP stack has received a significant update to add support for 569 modularised congestion control and generally improve the clarity of 570 congestion control decisions. Bump __FreeBSD_version to 900025. User 571 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g. 572 sockstat) need to be recompiled. 573 57420101002: 575 The man(1) utility has been replaced by a new version that no longer 576 uses /etc/manpath.config. Please consult man.conf(5) for how to 577 migrate local entries to the new format. 578 57920100928: 580 The copyright strings printed by login(1) and sshd(8) at the time of a 581 new connection have been removed to follow other operating systems and 582 upstream sshd. 583 58420100915: 585 A workaround for a fixed ld bug has been removed in kernel code, 586 so make sure that your system ld is built from sources after 587 revision 210245 from 2010-07-19 (r211583 if building head kernel 588 on stable/8, r211584 for stable/7; both from 2010-08-21). 589 A symptom of incorrect ld version is different addresses for 590 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules. 591 59220100913: 593 The $ipv6_prefer variable in rc.conf(5) has been split into 594 $ip6addrctl_policy and $ipv6_activate_all_interfaces. 595 596 The $ip6addrctl_policy is a variable to choose a pre-defined 597 address selection policy set by ip6addrctl(8). A value 598 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The 599 default is "AUTO". 600 601 The $ipv6_activate_all_interfaces specifies whether IFDISABLED 602 flag (see an entry of 20090926) is set on an interface with no 603 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for 604 security reason. If you want IPv6 link-local address on all 605 interfaces by default, set this to "YES". 606 607 The old ipv6_prefer="YES" is equivalent to 608 ipv6_activate_all_interfaces="YES" and 609 ip6addrctl_policy="ipv6_prefer". 610 61120100913: 612 DTrace has grown support for userland tracing. Due to this, DTrace is 613 now i386 and amd64 only. 614 dtruss(1) is now installed by default on those systems and a new 615 kernel module is needed for userland tracing: fasttrap. 616 No changes to your kernel config file are necessary to enable 617 userland tracing, but you might consider adding 'STRIP=' and 618 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want 619 to have informative userland stack traces in DTrace (ustack). 620 62120100725: 622 The acpi_aiboost(4) driver has been removed in favor of the new 623 aibs(4) driver. You should update your kernel configuration file. 624 62520100722: 626 BSD grep has been imported to the base system and it is built by 627 default. It is completely BSD licensed, highly GNU-compatible, uses 628 less memory than its GNU counterpart and has a small codebase. 629 However, it is slower than its GNU counterpart, which is mostly 630 noticeable for larger searches, for smaller ones it is measurable 631 but not significant. The reason is complex, the most important factor 632 is that we lack a modern and efficient regex library and GNU 633 overcomes this by optimizing the searches internally. Future work 634 on improving the regex performance is planned, for the meantime, 635 users that need better performance, can build GNU grep instead by 636 setting the WITH_GNU_GREP knob. 637 63820100713: 639 Due to the import of powerpc64 support, all existing powerpc kernel 640 configuration files must be updated with a machine directive like this: 641 machine powerpc powerpc 642 643 In addition, an updated config(8) is required to build powerpc kernels 644 after this change. 645 64620100713: 647 A new version of ZFS (version 15) has been merged to -HEAD. 648 This version uses a python library for the following subcommands: 649 zfs allow, zfs unallow, zfs groupspace, zfs userspace. 650 For full functionality of these commands the following port must 651 be installed: sysutils/py-zfs 652 65320100429: 654 'vm_page's are now hashed by physical address to an array of mutexes. 655 Currently this is only used to serialize access to hold_count. Over 656 time the page queue mutex will be peeled away. This changes the size 657 of pmap on every architecture. And requires all callers of vm_page_hold 658 and vm_page_unhold to be updated. 659 66020100402: 661 WITH_CTF can now be specified in src.conf (not recommended, there 662 are some problems with static executables), make.conf (would also 663 affect ports which do not use GNU make and do not override the 664 compile targets) or in the kernel config (via "makeoptions 665 WITH_CTF=yes"). 666 When WITH_CTF was specified there before this was silently ignored, 667 so make sure that WITH_CTF is not used in places which could lead 668 to unwanted behavior. 669 67020100311: 671 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32 672 to allow 32-bit compatibility on non-x86 platforms. All kernel 673 configurations on amd64 and ia64 platforms using these options must 674 be modified accordingly. 675 67620100113: 677 The utmp user accounting database has been replaced with utmpx, 678 the user accounting interface standardized by POSIX. 679 Unfortunately the semantics of utmp and utmpx don't match, 680 making it practically impossible to support both interfaces. 681 The user accounting database is used by tools like finger(1), 682 last(1), talk(1), w(1) and ac(8). 683 684 All applications in the base system use utmpx. This means only 685 local binaries (e.g. from the ports tree) may still use these 686 utmp database files. These applications must be rebuilt to make 687 use of utmpx. 688 689 After the system has been upgraded, it is safe to remove the old 690 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*), 691 assuming their contents is of no importance anymore. Old wtmp 692 databases can only be used by last(1) and ac(8) after they have 693 been converted to the new format using wtmpcvt(1). 694 69520100108: 696 Introduce the kernel thread "deadlock resolver" (which can be enabled 697 via the DEADLKRES option, see NOTES for more details) and the 698 sleepq_type() function for sleepqueues. 699 70020091202: 701 The rc.firewall and rc.firewall6 were unified, and 702 rc.firewall6 and rc.d/ip6fw were removed. 703 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc 704 variables are obsoleted. Instead, the following new rc 705 variables are added to rc.d/ipfw: 706 707 firewall_client_net_ipv6, firewall_simple_iif_ipv6, 708 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6, 709 firewall_simple_onet_ipv6, firewall_trusted_ipv6 710 711 The meanings correspond to the relevant IPv4 variables. 712 71320091125: 714 8.0-RELEASE. 715 71620091113: 717 The default terminal emulation for syscons(4) has been changed 718 from cons25 to xterm on all platforms except pc98. This means 719 that the /etc/ttys file needs to be updated to ensure correct 720 operation of applications on the console. 721 722 The terminal emulation style can be toggled per window by using 723 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration 724 options can be used to change the compile-time default back to 725 cons25. 726 727 To prevent graphical artifacts, make sure the TERM environment 728 variable is set to match the terminal emulation that is being 729 performed by syscons(4). 730 73120091109: 732 The layout of the structure ieee80211req_scan_result has changed. 733 Applications that require wireless scan results (e.g. ifconfig(8)) 734 from net80211 need to be recompiled. 735 736 Applications such as wpa_supplicant(8) may require a full world 737 build without using NO_CLEAN in order to get synchronized with the 738 new structure. 739 74020091025: 741 The iwn(4) driver has been updated to support the 5000 and 5150 series. 742 There's one kernel module for each firmware. Adding "device iwnfw" 743 to the kernel configuration file means including all three firmware 744 images inside the kernel. If you want to include just the one for 745 your wireless card, use the devices iwn4965fw, iwn5000fw or 746 iwn5150fw. 747 74820090926: 749 The rc.d/network_ipv6, IPv6 configuration script has been integrated 750 into rc.d/netif. The changes are the following: 751 752 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF 753 for IPv4. For aliases, $ifconfig_IF_aliasN should be used. 754 Note that both variables need the "inet6" keyword at the head. 755 756 Do not set $ipv6_network_interfaces manually if you do not 757 understand what you are doing. It is not needed in most cases. 758 759 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but 760 they are obsolete. 761 762 2. $ipv6_enable is obsolete. Use $ipv6_prefer and 763 "inet6 accept_rtadv" keyword in ifconfig(8) instead. 764 765 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and 766 all configured interfaces have "inet6 accept_rtadv" in the 767 $ifconfig_IF_ipv6. These are for backward compatibility. 768 769 3. A new variable $ipv6_prefer has been added. If NO, IPv6 770 functionality of interfaces with no corresponding 771 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag, 772 and the default address selection policy of ip6addrctl(8) 773 is the IPv4-preferred one (see rc.d/ip6addrctl for more details). 774 Note that if you want to configure IPv6 functionality on the 775 disabled interfaces after boot, first you need to clear the flag by 776 using ifconfig(8) like: 777 778 ifconfig em0 inet6 -ifdisabled 779 780 If YES, the default address selection policy is set as 781 IPv6-preferred. 782 783 The default value of $ipv6_prefer is NO. 784 785 4. If your system need to receive Router Advertisement messages, 786 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8) 787 scripts automatically invoke rtsol(8) when the interface becomes 788 UP. The Router Advertisement messages are used for SLAAC 789 (State-Less Address AutoConfiguration). 790 79120090922: 792 802.11s D3.03 support was committed. This is incompatible with the 793 previous code, which was based on D3.0. 794 79520090912: 796 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value 797 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to 798 control whether accepting Router Advertisement messages or not. 799 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and 800 a sysctl variable net.inet6.ip6.auto_linklocal is its default value. 801 The ifconfig(8) utility now supports these flags. 802 80320090910: 804 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for 805 mount(8) and -a option for df(1) to see them. 806 80720090825: 808 The old tunable hw.bus.devctl_disable has been superseded by 809 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be 810 replaced by hw.bus.devctl_queue=0. The default for this new tunable 811 is 1000. 812 81320090813: 814 Remove the option STOP_NMI. The default action is now to use NMI only 815 for KDB via the newly introduced function stop_cpus_hard() and 816 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64. 817 81820090803: 819 The stable/8 branch created in subversion. This corresponds to the 820 RELENG_8 branch in CVS. 821 82220090719: 823 Bump the shared library version numbers for all libraries that do not 824 use symbol versioning as part of the 8.0-RELEASE cycle. Bump 825 __FreeBSD_version to 800105. 826 82720090714: 828 Due to changes in the implementation of virtual network stack support, 829 all network-related kernel modules must be recompiled. As this change 830 breaks the ABI, bump __FreeBSD_version to 800104. 831 83220090713: 833 The TOE interface to the TCP syncache has been modified to remove 834 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack. 835 The cxgb driver is the only TOE consumer affected by this change, and 836 needs to be recompiled along with the kernel. As this change breaks 837 the ABI, bump __FreeBSD_version to 800103. 838 83920090712: 840 Padding has been added to struct tcpcb, sackhint and tcpstat in 841 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst 842 maintaining the ABI. However, this change breaks the ABI, so bump 843 __FreeBSD_version to 800102. User space tools that rely on the size of 844 any of these structs (e.g. sockstat) need to be recompiled. 845 84620090630: 847 The NFS_LEGACYRPC option has been removed along with the old kernel 848 RPC implementation that this option selected. Kernel configurations 849 may need to be adjusted. 850 85120090629: 852 The network interface device nodes at /dev/net/<interface> have been 853 removed. All ioctl operations can be performed the normal way using 854 routing sockets. The kqueue functionality can generally be replaced 855 with routing sockets. 856 85720090628: 858 The documentation from the FreeBSD Documentation Project (Handbook, 859 FAQ, etc.) is now installed via packages by sysinstall(8) and under 860 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc. 861 86220090624: 863 The ABI of various structures related to the SYSV IPC API have been 864 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel 865 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to 866 800100. 867 86820090622: 869 Layout of struct vnet has changed as routing related variables were 870 moved to their own Vimage module. Modules need to be recompiled. Bump 871 __FreeBSD_version to 800099. 872 87320090619: 874 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024 875 respectively. As long as no more than 16 groups per process are used, 876 no changes should be visible. When more than 16 groups are used, old 877 binaries may fail if they call getgroups() or getgrouplist() with 878 statically sized storage. Recompiling will work around this, but 879 applications should be modified to use dynamically allocated storage 880 for group arrays as POSIX.1-2008 does not cap an implementation's 881 number of supported groups at NGROUPS_MAX+1 as previous versions did. 882 883 NFS and portalfs mounts may also be affected as the list of groups is 884 truncated to 16. Users of NFS who use more than 16 groups, should 885 take care that negative group permissions are not used on the exported 886 file systems as they will not be reliable unless a GSSAPI based 887 authentication method is used. 888 88920090616: 890 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This 891 option compiles in the support for adaptive spinning for lockmgrs 892 which want to enable it. The lockinit() function now accepts the flag 893 LK_ADAPTIVE in order to make the lock object subject to adaptive 894 spinning when both held in write and read mode. 895 89620090613: 897 The layout of the structure returned by IEEE80211_IOC_STA_INFO has 898 changed. User applications that use this ioctl need to be rebuilt. 899 90020090611: 901 The layout of struct thread has changed. Kernel and modules need to 902 be rebuilt. 903 90420090608: 905 The layout of structs ifnet, domain, protosw and vnet_net has changed. 906 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097. 907 90820090602: 909 window(1) has been removed from the base system. It can now be 910 installed from ports. The port is called misc/window. 911 91220090601: 913 The way we are storing and accessing `routing table' entries has 914 changed. Programs reading the FIB, like netstat, need to be 915 re-compiled. 916 91720090601: 918 A new netisr implementation has been added for FreeBSD 8. Network 919 file system modules, such as igmp, ipdivert, and others, should be 920 rebuilt. 921 Bump __FreeBSD_version to 800096. 922 92320090530: 924 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no 925 more valid. 926 92720090530: 928 Add VOP_ACCESSX(9). File system modules need to be rebuilt. 929 Bump __FreeBSD_version to 800094. 930 93120090529: 932 Add mnt_xflag field to 'struct mount'. File system modules need to be 933 rebuilt. 934 Bump __FreeBSD_version to 800093. 935 93620090528: 937 The compiling option ADAPTIVE_SX has been retired while it has been 938 introduced the option NO_ADAPTIVE_SX which handles the reversed logic. 939 The KPI for sx_init_flags() changes as accepting flags: 940 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has 941 been introduced in order to handle the reversed logic. 942 Bump __FreeBSD_version to 800092. 943 94420090527: 945 Add support for hierarchical jails. Remove global securelevel. 946 Bump __FreeBSD_version to 800091. 947 94820090523: 949 The layout of struct vnet_net has changed, therefore modules 950 need to be rebuilt. 951 Bump __FreeBSD_version to 800090. 952 95320090523: 954 The newly imported zic(8) produces a new format in the output. Please 955 run tzsetup(8) to install the newly created data to /etc/localtime. 956 95720090520: 958 The sysctl tree for the usb stack has renamed from hw.usb2.* to 959 hw.usb.* and is now consistent again with previous releases. 960 96120090520: 962 802.11 monitor mode support was revised and driver api's were changed. 963 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead 964 of DLT_IEEE802_11. No user-visible data structures were changed but 965 applications that use DLT_IEEE802_11 may require changes. 966 Bump __FreeBSD_version to 800088. 967 96820090430: 969 The layout of the following structs has changed: sysctl_oid, 970 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet, 971 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or 972 panics may be experienced. World rebuild is required for 973 correctly checking networking state from userland. 974 Bump __FreeBSD_version to 800085. 975 97620090429: 977 MLDv2 and Source-Specific Multicast (SSM) have been merged 978 to the IPv6 stack. VIMAGE hooks are in but not yet used. 979 The implementation of SSM within FreeBSD's IPv6 stack closely 980 follows the IPv4 implementation. 981 982 For kernel developers: 983 984 * The most important changes are that the ip6_output() and 985 ip6_input() paths no longer take the IN6_MULTI_LOCK, 986 and this lock has been downgraded to a non-recursive mutex. 987 988 * As with the changes to the IPv4 stack to support SSM, filtering 989 of inbound multicast traffic must now be performed by transport 990 protocols within the IPv6 stack. This does not apply to TCP and 991 SCTP, however, it does apply to UDP in IPv6 and raw IPv6. 992 993 * The KPIs used by IPv6 multicast are similar to those used by 994 the IPv4 stack, with the following differences: 995 * im6o_mc_filter() is analogous to imo_multicast_filter(). 996 * The legacy KAME entry points in6_joingroup and in6_leavegroup() 997 are shimmed to in6_mc_join() and in6_mc_leave() respectively. 998 * IN6_LOOKUP_MULTI() has been deprecated and removed. 999 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs 1000 for MLDv1 have an additional 'timer' argument which is used to 1001 jitter the initial membership report for the solicited-node 1002 multicast membership on-link. 1003 * This is not strictly needed for MLDv2, which already jitters 1004 its report transmissions. However, the 'timer' argument is 1005 preserved in case MLDv1 is active on the interface. 1006 1007 * The KAME linked-list based IPv6 membership implementation has 1008 been refactored to use a vector similar to that used by the IPv4 1009 stack. 1010 Code which maintains a list of its own multicast memberships 1011 internally, e.g. carp, has been updated to reflect the new 1012 semantics. 1013 1014 * There is a known Lock Order Reversal (LOR) due to in6_setscope() 1015 acquiring the IF_AFDATA_LOCK and being called within ip6_output(). 1016 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an 1017 implementation constraint which needs to be addressed in HEAD. 1018 1019 For application developers: 1020 1021 * The changes are broadly similar to those made for the IPv4 1022 stack. 1023 1024 * The use of IPv4 and IPv6 multicast socket options on the same 1025 socket, using mapped addresses, HAS NOT been tested or supported. 1026 1027 * There are a number of issues with the implementation of various 1028 IPv6 multicast APIs which need to be resolved in the API surface 1029 before the implementation is fully compatible with KAME userland 1030 use, and these are mostly to do with interface index treatment. 1031 1032 * The literature available discusses the use of either the delta / ASM 1033 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API 1034 using setsourcefilter(3)/getsourcefilter(3). For more information 1035 please refer to RFC 3768, 'Socket Interface Extensions for 1036 Multicast Source Filters'. 1037 1038 * Applications which use the published RFC 3678 APIs should be fine. 1039 1040 For systems administrators: 1041 1042 * The mtest(8) utility has been refactored to support IPv6, in 1043 addition to IPv4. Interface addresses are no longer accepted 1044 as arguments, their names must be used instead. The utility 1045 will map the interface name to its first IPv4 address as 1046 returned by getifaddrs(3). 1047 1048 * The ifmcstat(8) utility has also been updated to print the MLDv2 1049 endpoint state and source filter lists via sysctl(3). 1050 1051 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable 1052 loopback of IPv6 multicast datagrams by default; it defaults to 1 1053 to preserve the existing behaviour. Disabling multicast loopback is 1054 recommended for optimal system performance. 1055 1056 * The IPv6 MROUTING code has been changed to examine this sysctl 1057 instead of attempting to perform a group lookup before looping 1058 back forwarded datagrams. 1059 1060 Bump __FreeBSD_version to 800084. 1061 106220090422: 1063 Implement low-level Bluetooth HCI API. 1064 Bump __FreeBSD_version to 800083. 1065 106620090419: 1067 The layout of struct malloc_type, used by modules to register new 1068 memory allocation types, has changed. Most modules will need to 1069 be rebuilt or panics may be experienced. 1070 Bump __FreeBSD_version to 800081. 1071 107220090415: 1073 Anticipate overflowing inp_flags - add inp_flags2. 1074 This changes most offsets in inpcb, so checking v4 connection 1075 state will require a world rebuild. 1076 Bump __FreeBSD_version to 800080. 1077 107820090415: 1079 Add an llentry to struct route and struct route_in6. Modules 1080 embedding a struct route will need to be recompiled. 1081 Bump __FreeBSD_version to 800079. 1082 108320090414: 1084 The size of rt_metrics_lite and by extension rtentry has changed. 1085 Networking administration apps will need to be recompiled. 1086 The route command now supports show as an alias for get, weighting 1087 of routes, sticky and nostick flags to alter the behavior of stateful 1088 load balancing. 1089 Bump __FreeBSD_version to 800078. 1090 109120090408: 1092 Do not use Giant for kbdmux(4) locking. This is wrong and 1093 apparently causing more problems than it solves. This will 1094 re-open the issue where interrupt handlers may race with 1095 kbdmux(4) in polling mode. Typical symptoms include (but 1096 not limited to) duplicated and/or missing characters when 1097 low level console functions (such as gets) are used while 1098 interrupts are enabled (for example geli password prompt, 1099 mountroot prompt etc.). Disabling kbdmux(4) may help. 1100 110120090407: 1102 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed; 1103 kernel modules referencing any of the above need to be recompiled. 1104 Bump __FreeBSD_version to 800075. 1105 110620090320: 1107 GEOM_PART has become the default partition slicer for storage devices, 1108 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It 1109 introduces some changes: 1110 1111 MSDOS/EBR: the devices created from MSDOS extended partition entries 1112 (EBR) can be named differently than with GEOM_MBR and are now symlinks 1113 to devices with offset-based names. fstabs may need to be modified. 1114 1115 BSD: the "geometry does not match label" warning is harmless in most 1116 cases but it points to problems in file system misalignment with 1117 disk geometry. The "c" partition is now implicit, covers the whole 1118 top-level drive and cannot be (mis)used by users. 1119 1120 General: Kernel dumps are now not allowed to be written to devices 1121 whose partition types indicate they are meant to be used for file 1122 systems (or, in case of MSDOS partitions, as something else than 1123 the "386BSD" type). 1124 1125 Most of these changes date approximately from 200812. 1126 112720090319: 1128 The uscanner(4) driver has been removed from the kernel. This follows 1129 Linux removing theirs in 2.6 and making libusb the default interface 1130 (supported by sane). 1131 113220090319: 1133 The multicast forwarding code has been cleaned up. netstat(1) 1134 only relies on KVM now for printing bandwidth upcall meters. 1135 The IPv4 and IPv6 modules are split into ip_mroute_mod and 1136 ip6_mroute_mod respectively. The config(5) options for statically 1137 compiling this code remain the same, i.e. 'options MROUTING'. 1138 113920090315: 1140 Support for the IFF_NEEDSGIANT network interface flag has been 1141 removed, which means that non-MPSAFE network device drivers are no 1142 longer supported. In particular, if_ar, if_sr, and network device 1143 drivers from the old (legacy) USB stack can no longer be built or 1144 used. 1145 114620090313: 1147 POSIX.1 Native Language Support (NLS) has been enabled in libc and 1148 a bunch of new language catalog files have also been added. 1149 This means that some common libc messages are now localized and 1150 they depend on the LC_MESSAGES environmental variable. 1151 115220090313: 1153 The k8temp(4) driver has been renamed to amdtemp(4) since 1154 support for Family 10 and Family 11 CPU families was added. 1155 115620090309: 1157 IGMPv3 and Source-Specific Multicast (SSM) have been merged 1158 to the IPv4 stack. VIMAGE hooks are in but not yet used. 1159 1160 For kernel developers, the most important changes are that the 1161 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(), 1162 and this lock has been downgraded to a non-recursive mutex. 1163 1164 Transport protocols (UDP, Raw IP) are now responsible for filtering 1165 inbound multicast traffic according to group membership and source 1166 filters. The imo_multicast_filter() KPI exists for this purpose. 1167 Transports which do not use multicast (SCTP, TCP) already reject 1168 multicast by default. Forwarding and receive performance may improve 1169 as a mutex acquisition is no longer needed in the ip_input() 1170 low-level input path. in_addmulti() and in_delmulti() are shimmed 1171 to new KPIs which exist to support SSM in-kernel. 1172 1173 For application developers, it is recommended that loopback of 1174 multicast datagrams be disabled for best performance, as this 1175 will still cause the lock to be taken for each looped-back 1176 datagram transmission. The net.inet.ip.mcast.loop sysctl may 1177 be tuned to 0 to disable loopback by default; it defaults to 1 1178 to preserve the existing behaviour. 1179 1180 For systems administrators, to obtain best performance with 1181 multicast reception and multiple groups, it is always recommended 1182 that a card with a suitably precise hash filter is used. Hash 1183 collisions will still result in the lock being taken within the 1184 transport protocol input path to check group membership. 1185 1186 If deploying FreeBSD in an environment with IGMP snooping switches, 1187 it is recommended that the net.inet.igmp.sendlocal sysctl remain 1188 enabled; this forces 224.0.0.0/24 group membership to be announced 1189 via IGMP. 1190 1191 The size of 'struct igmpstat' has changed; netstat needs to be 1192 recompiled to reflect this. 1193 Bump __FreeBSD_version to 800070. 1194 119520090309: 1196 libusb20.so.1 is now installed as libusb.so.1 and the ports system 1197 updated to use it. This requires a buildworld/installworld in order to 1198 update the library and dependencies (usbconfig, etc). Its advisable to 1199 rebuild all ports which uses libusb. More specific directions are given 1200 in the ports collection UPDATING file. Any /etc/libmap.conf entries for 1201 libusb are no longer required and can be removed. 1202 120320090302: 1204 A workaround is committed to allow the creation of System V shared 1205 memory segment of size > 2 GB on the 64-bit architectures. 1206 Due to a limitation of the existing ABI, the shm_segsz member 1207 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is 1208 wrong for large segments. Note that limits must be explicitly 1209 raised to allow such segments to be created. 1210 121120090301: 1212 The layout of struct ifnet has changed, requiring a rebuild of all 1213 network device driver modules. 1214 121520090227: 1216 The /dev handling for the new USB stack has changed, a 1217 buildworld/installworld is required for libusb20. 1218 121920090223: 1220 The new USB2 stack has now been permanently moved in and all kernel and 1221 module names reverted to their previous values (eg, usb, ehci, ohci, 1222 ums, ...). The old usb stack can be compiled in by prefixing the name 1223 with the letter 'o', the old usb modules have been removed. 1224 Updating entry 20090216 for xorg and 20090215 for libmap may still 1225 apply. 1226 122720090217: 1228 The rc.conf(5) option if_up_delay has been renamed to 1229 defaultroute_delay to better reflect its purpose. If you have 1230 customized this setting in /etc/rc.conf you need to update it to 1231 use the new name. 1232 123320090216: 1234 xorg 7.4 wants to configure its input devices via hald which does not 1235 yet work with USB2. If the keyboard/mouse does not work in xorg then 1236 add 1237 Option "AllowEmptyInput" "off" 1238 to your ServerLayout section. This will cause X to use the configured 1239 kbd and mouse sections from your xorg.conf. 1240 124120090215: 1242 The GENERIC kernels for all architectures now default to the new USB2 1243 stack. No kernel config options or code have been removed so if a 1244 problem arises please report it and optionally revert to the old USB 1245 stack. If you are loading USB kernel modules or have a custom kernel 1246 that includes GENERIC then ensure that usb names are also changed over, 1247 eg uftdi -> usb2_serial_ftdi. 1248 1249 Older programs linked against the ports libusb 0.1 need to be 1250 redirected to the new stack's libusb20. /etc/libmap.conf can 1251 be used for this: 1252 # Map old usb library to new one for usb2 stack 1253 libusb-0.1.so.8 libusb20.so.1 1254 125520090209: 1256 All USB ethernet devices now attach as interfaces under the name ueN 1257 (eg. ue0). This is to provide a predictable name as vendors often 1258 change usb chipsets in a product without notice. 1259 126020090203: 1261 The ichsmb(4) driver has been changed to require SMBus slave 1262 addresses be left-justified (xxxxxxx0b) rather than right-justified. 1263 All of the other SMBus controller drivers require left-justified 1264 slave addresses, so this change makes all the drivers provide the 1265 same interface. 1266 126720090201: 1268 INET6 statistics (struct ip6stat) was updated. 1269 netstat(1) needs to be recompiled. 1270 127120090119: 1272 NTFS has been removed from GENERIC kernel on amd64 to match 1273 GENERIC on i386. Should not cause any issues since mount_ntfs(8) 1274 will load ntfs.ko module automatically when NTFS support is 1275 actually needed, unless ntfs.ko is not installed or security 1276 level prohibits loading kernel modules. If either is the case, 1277 "options NTFS" has to be added into kernel config. 1278 127920090115: 1280 TCP Appropriate Byte Counting (RFC 3465) support added to kernel. 1281 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to 1282 800061. User space tools that rely on the size of struct tcpcb in 1283 tcp_var.h (e.g. sockstat) need to be recompiled. 1284 128520081225: 1286 ng_tty(4) module updated to match the new TTY subsystem. 1287 Due to API change, user-level applications must be updated. 1288 New API support added to mpd5 CVS and expected to be present 1289 in next mpd5.3 release. 1290 129120081219: 1292 With __FreeBSD_version 800060 the makefs tool is part of 1293 the base system (it was a port). 1294 129520081216: 1296 The afdata and ifnet locks have been changed from mutexes to 1297 rwlocks, network modules will need to be re-compiled. 1298 129920081214: 1300 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite. 1301 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated. 1302 The new code reduced struct rtentry{} by 16 bytes on 32-bit 1303 architecture and 40 bytes on 64-bit architecture. The userland 1304 applications "arp" and "ndp" have been updated accordingly. 1305 The output from "netstat -r" shows only routing entries and 1306 none of the L2 information. 1307 130820081130: 1309 __FreeBSD_version 800057 marks the switchover from the 1310 binary ath hal to source code. Users must add the line: 1311 1312 options AH_SUPPORT_AR5416 1313 1314 to their kernel config files when specifying: 1315 1316 device ath_hal 1317 1318 The ath_hal module no longer exists; the code is now compiled 1319 together with the driver in the ath module. It is now 1320 possible to tailor chip support (i.e. reduce the set of chips 1321 and thereby the code size); consult ath_hal(4) for details. 1322 132320081121: 1324 __FreeBSD_version 800054 adds memory barriers to 1325 <machine/atomic.h>, new interfaces to ifnet to facilitate 1326 multiple hardware transmit queues for cards that support 1327 them, and a lock-less ring-buffer implementation to 1328 enable drivers to more efficiently manage queueing of 1329 packets. 1330 133120081117: 1332 A new version of ZFS (version 13) has been merged to -HEAD. 1333 This version has zpool attribute "listsnapshots" off by 1334 default, which means "zfs list" does not show snapshots, 1335 and is the same as Solaris behavior. 1336 133720081028: 1338 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled. 1339 134020081009: 1341 The uhci, ohci, ehci and slhci USB Host controller drivers have 1342 been put into separate modules. If you load the usb module 1343 separately through loader.conf you will need to load the 1344 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0 1345 controller add the following to loader.conf: 1346 1347 uhci_load="YES" 1348 ehci_load="YES" 1349 135020081009: 1351 The ABI used by the PMC toolset has changed. Please keep 1352 userland (libpmc(3)) and the kernel module (hwpmc(4)) in 1353 sync. 1354 135520081009: 1356 atapci kernel module now includes only generic PCI ATA 1357 driver. AHCI driver moved to ataahci kernel module. 1358 All vendor-specific code moved into separate kernel modules: 1359 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek, 1360 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron, 1361 atamarvell, atamicron, atanational, atanetcell, atanvidia, 1362 atapromise, ataserverworks, atasiliconimage, atasis, atavia 1363 136420080820: 1365 The TTY subsystem of the kernel has been replaced by a new 1366 implementation, which provides better scalability and an 1367 improved driver model. Most common drivers have been migrated to 1368 the new TTY subsystem, while others have not. The following 1369 drivers have not yet been ported to the new TTY layer: 1370 1371 PCI/ISA: 1372 cy, digi, rc, rp, sio 1373 1374 USB: 1375 ubser, ucycom 1376 1377 Line disciplines: 1378 ng_h4, ng_tty, ppp, sl, snp 1379 1380 Adding these drivers to your kernel configuration file shall 1381 cause compilation to fail. 1382 138320080818: 1384 ntpd has been upgraded to 4.2.4p5. 1385 138620080801: 1387 OpenSSH has been upgraded to 5.1p1. 1388 1389 For many years, FreeBSD's version of OpenSSH preferred DSA 1390 over RSA for host and user authentication keys. With this 1391 upgrade, we've switched to the vendor's default of RSA over 1392 DSA. This may cause upgraded clients to warn about unknown 1393 host keys even for previously known hosts. Users should 1394 follow the usual procedure for verifying host keys before 1395 accepting the RSA key. 1396 1397 This can be circumvented by setting the "HostKeyAlgorithms" 1398 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh 1399 command line. 1400 1401 Please note that the sequence of keys offered for 1402 authentication has been changed as well. You may want to 1403 specify IdentityFile in a different order to revert this 1404 behavior. 1405 140620080713: 1407 The sio(4) driver has been removed from the i386 and amd64 1408 kernel configuration files. This means uart(4) is now the 1409 default serial port driver on those platforms as well. 1410 1411 To prevent collisions with the sio(4) driver, the uart(4) driver 1412 uses different names for its device nodes. This means the 1413 onboard serial port will now most likely be called "ttyu0" 1414 instead of "ttyd0". You may need to reconfigure applications to 1415 use the new device names. 1416 1417 When using the serial port as a boot console, be sure to update 1418 /boot/device.hints and /etc/ttys before booting the new kernel. 1419 If you forget to do so, you can still manually specify the hints 1420 at the loader prompt: 1421 1422 set hint.uart.0.at="isa" 1423 set hint.uart.0.port="0x3F8" 1424 set hint.uart.0.flags="0x10" 1425 set hint.uart.0.irq="4" 1426 boot -s 1427 142820080609: 1429 The gpt(8) utility has been removed. Use gpart(8) to partition 1430 disks instead. 1431 143220080603: 1433 The version that Linuxulator emulates was changed from 2.4.2 1434 to 2.6.16. If you experience any problems with Linux binaries 1435 please try to set sysctl compat.linux.osrelease to 2.4.2 and 1436 if it fixes the problem contact emulation mailing list. 1437 143820080525: 1439 ISDN4BSD (I4B) was removed from the src tree. You may need to 1440 update a your kernel configuration and remove relevant entries. 1441 144220080509: 1443 I have checked in code to support multiple routing tables. 1444 See the man pages setfib(1) and setfib(2). 1445 This is a hopefully backwards compatible version, 1446 but to make use of it you need to compile your kernel 1447 with options ROUTETABLES=2 (or more up to 16). 1448 144920080420: 1450 The 802.11 wireless support was redone to enable multi-bss 1451 operation on devices that are capable. The underlying device 1452 is no longer used directly but instead wlanX devices are 1453 cloned with ifconfig. This requires changes to rc.conf files. 1454 For example, change: 1455 ifconfig_ath0="WPA DHCP" 1456 to 1457 wlans_ath0=wlan0 1458 ifconfig_wlan0="WPA DHCP" 1459 see rc.conf(5) for more details. In addition, mergemaster of 1460 /etc/rc.d is highly recommended. Simultaneous update of userland 1461 and kernel wouldn't hurt either. 1462 1463 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta 1464 modules were merged into the base wlan module. All references 1465 to these modules (e.g. in kernel config files) must be removed. 1466 146720080408: 1468 psm(4) has gained write(2) support in native operation level. 1469 Arbitrary commands can be written to /dev/psm%d and status can 1470 be read back from it. Therefore, an application is responsible 1471 for status validation and error recovery. It is a no-op in 1472 other operation levels. 1473 147420080312: 1475 Support for KSE threading has been removed from the kernel. To 1476 run legacy applications linked against KSE libmap.conf may 1477 be used. The following libmap.conf may be used to ensure 1478 compatibility with any prior release: 1479 1480 libpthread.so.1 libthr.so.1 1481 libpthread.so.2 libthr.so.2 1482 libkse.so.3 libthr.so.3 1483 148420080301: 1485 The layout of struct vmspace has changed. This affects libkvm 1486 and any executables that link against libkvm and use the 1487 kvm_getprocs() function. In particular, but not exclusively, 1488 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1). 1489 The effects are minimal, but it's advisable to upgrade world 1490 nonetheless. 1491 149220080229: 1493 The latest em driver no longer has support in it for the 1494 82575 adapter, this is now moved to the igb driver. The 1495 split was done to make new features that are incompatible 1496 with older hardware easier to do. 1497 149820080220: 1499 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4), 1500 likewise the kernel option is now GEOM_LINUX_LVM. 1501 150220080211: 1503 The default NFS mount mode has changed from UDP to TCP for 1504 increased reliability. If you rely on (insecurely) NFS 1505 mounting across a firewall you may need to update your 1506 firewall rules. 1507 150820080208: 1509 Belatedly note the addition of m_collapse for compacting 1510 mbuf chains. 1511 151220080126: 1513 The fts(3) structures have been changed to use adequate 1514 integer types for their members and so to be able to cope 1515 with huge file trees. The old fts(3) ABI is preserved 1516 through symbol versioning in libc, so third-party binaries 1517 using fts(3) should still work, although they will not take 1518 advantage of the extended types. At the same time, some 1519 third-party software might fail to build after this change 1520 due to unportable assumptions made in its source code about 1521 fts(3) structure members. Such software should be fixed 1522 by its vendor or, in the worst case, in the ports tree. 1523 FreeBSD_version 800015 marks this change for the unlikely 1524 case that a portable fix is impossible. 1525 152620080123: 1527 To upgrade to -current after this date, you must be running 1528 FreeBSD not older than 6.0-RELEASE. Upgrading to -current 1529 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems. 1530 153120071128: 1532 The ADAPTIVE_GIANT kernel option has been retired because its 1533 functionality is the default now. 1534 153520071118: 1536 The AT keyboard emulation of sunkbd(4) has been turned on 1537 by default. In order to make the special symbols of the Sun 1538 keyboards driven by sunkbd(4) work under X these now have 1539 to be configured the same way as Sun USB keyboards driven 1540 by ukbd(4) (which also does AT keyboard emulation), f.e.: 1541 1542 Option "XkbLayout" "us" 1543 Option "XkbRules" "xorg" 1544 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us" 1545 154620071024: 1547 It has been decided that it is desirable to provide ABI 1548 backwards compatibility to the FreeBSD 4/5/6 versions of the 1549 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was 1550 broken with the introduction of PCI domain support (see the 1551 20070930 entry). Unfortunately, this required the ABI of 1552 PCIOCGETCONF to be broken again in order to be able to 1553 provide backwards compatibility to the old version of that 1554 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled 1555 again. As for prominent ports this affects neither pciutils 1556 nor xorg-server this time, the hal port needs to be rebuilt 1557 however. 1558 155920071020: 1560 The misnamed kthread_create() and friends have been renamed 1561 to kproc_create() etc. Many of the callers already 1562 used kproc_start().. 1563 I will return kthread_create() and friends in a while 1564 with implementations that actually create threads, not procs. 1565 Renaming corresponds with version 800002. 1566 156720071010: 1568 RELENG_7 branched. 1569 1570COMMON ITEMS: 1571 1572 General Notes 1573 ------------- 1574 Avoid using make -j when upgrading. While generally safe, there are 1575 sometimes problems using -j to upgrade. If your upgrade fails with 1576 -j, please try again without -j. From time to time in the past there 1577 have been problems using -j with buildworld and/or installworld. This 1578 is especially true when upgrading between "distant" versions (eg one 1579 that cross a major release boundary or several minor releases, or when 1580 several months have passed on the -current branch). 1581 1582 Sometimes, obscure build problems are the result of environment 1583 poisoning. This can happen because the make utility reads its 1584 environment when searching for values for global variables. To run 1585 your build attempts in an "environmental clean room", prefix all make 1586 commands with 'env -i '. See the env(1) manual page for more details. 1587 1588 When upgrading from one major version to another it is generally best 1589 to upgrade to the latest code in the currently installed branch first, 1590 then do an upgrade to the new branch. This is the best-tested upgrade 1591 path, and has the highest probability of being successful. Please try 1592 this approach before reporting problems with a major version upgrade. 1593 1594 ZFS notes 1595 --------- 1596 When upgrading the boot ZFS pool to a new version, always follow 1597 these two steps: 1598 1599 1.) recompile and reinstall the ZFS boot loader and boot block 1600 (this is part of "make buildworld" and "make installworld") 1601 1602 2.) update the ZFS boot block on your boot drive 1603 1604 The following example updates the ZFS boot block on the first 1605 partition (freebsd-boot) of a GPT partitioned drive ad0: 1606 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0" 1607 1608 Non-boot pools do not need these updates. 1609 1610 To build a kernel 1611 ----------------- 1612 If you are updating from a prior version of FreeBSD (even one just 1613 a few days old), you should follow this procedure. It is the most 1614 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld, 1615 1616 make kernel-toolchain 1617 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE 1618 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE 1619 1620 To test a kernel once 1621 --------------------- 1622 If you just want to boot a kernel once (because you are not sure 1623 if it works, or if you want to boot a known bad kernel to provide 1624 debugging information) run 1625 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel 1626 nextboot -k testkernel 1627 1628 To just build a kernel when you know that it won't mess you up 1629 -------------------------------------------------------------- 1630 This assumes you are already running a CURRENT system. Replace 1631 ${arch} with the architecture of your machine (e.g. "i386", 1632 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc). 1633 1634 cd src/sys/${arch}/conf 1635 config KERNEL_NAME_HERE 1636 cd ../compile/KERNEL_NAME_HERE 1637 make depend 1638 make 1639 make install 1640 1641 If this fails, go to the "To build a kernel" section. 1642 1643 To rebuild everything and install it on the current system. 1644 ----------------------------------------------------------- 1645 # Note: sometimes if you are running current you gotta do more than 1646 # is listed here if you are upgrading from a really old current. 1647 1648 <make sure you have good level 0 dumps> 1649 make buildworld 1650 make kernel KERNCONF=YOUR_KERNEL_HERE 1651 [1] 1652 <reboot in single user> [3] 1653 mergemaster -p [5] 1654 make installworld 1655 mergemaster -i [4] 1656 make delete-old [6] 1657 <reboot> 1658 1659 1660 To cross-install current onto a separate partition 1661 -------------------------------------------------- 1662 # In this approach we use a separate partition to hold 1663 # current's root, 'usr', and 'var' directories. A partition 1664 # holding "/", "/usr" and "/var" should be about 2GB in 1665 # size. 1666 1667 <make sure you have good level 0 dumps> 1668 <boot into -stable> 1669 make buildworld 1670 make buildkernel KERNCONF=YOUR_KERNEL_HERE 1671 <maybe newfs current's root partition> 1672 <mount current's root partition on directory ${CURRENT_ROOT}> 1673 make installworld DESTDIR=${CURRENT_ROOT} 1674 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd 1675 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT} 1676 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd 1677 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition> 1678 <reboot into current> 1679 <do a "native" rebuild/install as described in the previous section> 1680 <maybe install compatibility libraries from ports/misc/compat*> 1681 <reboot> 1682 1683 1684 To upgrade in-place from stable to current 1685 ---------------------------------------------- 1686 <make sure you have good level 0 dumps> 1687 make buildworld [9] 1688 make kernel KERNCONF=YOUR_KERNEL_HERE [8] 1689 [1] 1690 <reboot in single user> [3] 1691 mergemaster -p [5] 1692 make installworld 1693 mergemaster -i [4] 1694 make delete-old [6] 1695 <reboot> 1696 1697 Make sure that you've read the UPDATING file to understand the 1698 tweaks to various things you need. At this point in the life 1699 cycle of current, things change often and you are on your own 1700 to cope. The defaults can also change, so please read ALL of 1701 the UPDATING entries. 1702 1703 Also, if you are tracking -current, you must be subscribed to 1704 freebsd-current@freebsd.org. Make sure that before you update 1705 your sources that you have read and understood all the recent 1706 messages there. If in doubt, please track -stable which has 1707 much fewer pitfalls. 1708 1709 [1] If you have third party modules, such as vmware, you 1710 should disable them at this point so they don't crash your 1711 system on reboot. 1712 1713 [3] From the bootblocks, boot -s, and then do 1714 fsck -p 1715 mount -u / 1716 mount -a 1717 cd src 1718 adjkerntz -i # if CMOS is wall time 1719 Also, when doing a major release upgrade, it is required that 1720 you boot into single user mode to do the installworld. 1721 1722 [4] Note: This step is non-optional. Failure to do this step 1723 can result in a significant reduction in the functionality of the 1724 system. Attempting to do it by hand is not recommended and those 1725 that pursue this avenue should read this file carefully, as well 1726 as the archives of freebsd-current and freebsd-hackers mailing lists 1727 for potential gotchas. The -U option is also useful to consider. 1728 See mergemaster(8) for more information. 1729 1730 [5] Usually this step is a noop. However, from time to time 1731 you may need to do this if you get unknown user in the following 1732 step. It never hurts to do it all the time. You may need to 1733 install a new mergemaster (cd src/usr.sbin/mergemaster && make 1734 install) after the buildworld before this step if you last updated 1735 from current before 20020224 or from -stable before 20020408. 1736 1737 [6] This only deletes old files and directories. Old libraries 1738 can be deleted by "make delete-old-libs", but you have to make 1739 sure that no program is using those libraries anymore. 1740 1741 [8] In order to have a kernel that can run the 4.x binaries needed to 1742 do an installworld, you must include the COMPAT_FREEBSD4 option in 1743 your kernel. Failure to do so may leave you with a system that is 1744 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is 1745 required to run the 5.x binaries on more recent kernels. And so on 1746 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7. 1747 1748 Make sure that you merge any new devices from GENERIC since the 1749 last time you updated your kernel config file. 1750 1751 [9] When checking out sources, you must include the -P flag to have 1752 cvs prune empty directories. 1753 1754 If CPUTYPE is defined in your /etc/make.conf, make sure to use the 1755 "?=" instead of the "=" assignment operator, so that buildworld can 1756 override the CPUTYPE if it needs to. 1757 1758 MAKEOBJDIRPREFIX must be defined in an environment variable, and 1759 not on the command line, or in /etc/make.conf. buildworld will 1760 warn if it is improperly defined. 1761FORMAT: 1762 1763This file contains a list, in reverse chronological order, of major 1764breakages in tracking -current. It is not guaranteed to be a complete 1765list of such breakages, and only contains entries since October 10, 2007. 1766If you need to see UPDATING entries from before that date, you will need 1767to fetch an UPDATING file from an older FreeBSD release. 1768 1769Copyright information: 1770 1771Copyright 1998-2009 M. Warner Losh. All Rights Reserved. 1772 1773Redistribution, publication, translation and use, with or without 1774modification, in full or in part, in any form or format of this 1775document are permitted without further permission from the author. 1776 1777THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR 1778IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1779WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1780DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT, 1781INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 1782(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 1783SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 1784HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 1785STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 1786IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 1787POSSIBILITY OF SUCH DAMAGE. 1788 1789Contact Warner Losh if you have any questions about your use of 1790this document. 1791 1792$FreeBSD$ 1793