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OpenBSD 4.2 今天发布
用户评价: / 0
差好 
作者：柏昂乐   
周五, 2007年 11月 02日 20:54
OpenBSD 4.2今天发布，其主题曲为 "100001 1010101"，主题曲下载址为: 4:40 minutes (MP3 4.0MB) (OGG 6.4MB)

"新版增加了新的功能，主要有：“安全性依然是重中之重，但改进同样是巨大的。PF测试是以前的两倍，i386和amd64的TLB shootdown代码经过了重写；改进了MP系统的频标，节省了近20%的电池能耗。其它新功能有：FFS2，支持Advanced Host Controller Interface(AHCI)介面规格，IP负载平衡，Xenocara等等。”

原文如下:

OpenBSD卡通图

What's New

This is a partial list of new features and systems included in OpenBSD 4.2. For a comprehensive list, see the changelog leading to 4.2.

 

  • New/extended platforms:
    • OpenBSD/sparc64.
      The PCIe UltraSPARC IIIi machines like the V215 and V245 are now supported.
    • OpenBSD/hppa.
      Four-digit B/C/J-class workstations like the B2000, C3750 or J6750 are now supported (in 32-bit mode).
    • OpenBSD/alpha.
      Add support in the alpha platform for a couple of new Alpha models, AlphaServer 1200 and 4100.

     

  • Platforms skipped this release:
    • OpenBSD/sgi.
      Due to various issues, this architecture will not be released this time.

     

  • Improved hardware support, including:
    • Native Serial-ATA support:
      • ahci(4) driver for SATA controllers conforming to the Advanced Host Controller Interface specification.
      • jmb(4) driver for the JMicron JMB36x SATA II and PATA Host Controller.
      • sili(4) driver for SATA controllers using the Silicon Image 3124/3132/3531 SATALink chipsets.
    • The pciide(4) driver has had support added for newer chipsets, including:
      • Intel ICH8M PATA
      • JMicron JMB36x PATA
      • VIA CX700/VX700 PATA
    • The lm(4) driver now supports Winbond W83627DHG and W83627EHF-A Super I/O Hardware Monitors.
    • The siop(4) driver now has support for NCR 53C720/770 controllers in big endian mode. In particular this means that the onboard Fast-Wide SCSI on many hppa machines is supported now.
    • New tht(4) driver for Tehuti Networks 10Gb Ethernet controllers.
    • The malo(4) driver now supports Marvell 88W8385 802.11g based Compact Flash devices.
    • New uts(4) driver for USB touch screens, and the xtsscale(1) calibration utility.
    • The i810(4) X.Org driver and the PCI AGP driver now support Intel i965GM chips.
    • New led(4) driver for the front panel LEDs on the V215/245.
    • New bbc(4) driver providing support for the BootBus Controllers in UltraSparc III systems.
    • New pmc(4) driver for the watchdog(4) timer on the National Semiconductor PC87317 SuperIO chip.
    • New pyro(4) driver for the SPARC64 Host/PCIe bridge.
    • New astro(4) driver for the Astro Memory and I/O controller on hppa.
    • New elroy(4) driver for the Elroy PCI hostbridge on hppa.
    • New lcd(4) driver for the front panel LCD display on hppa.
    • New ssio(4) driver for the National Semiconductor PC87560 Legacy IO on hppa.
    • New pxammc(4) driver for the MMC/SD/SDIO controller on zaurus.
    • New xlights(4) driver for the front panel lights on the Xserve G4.
    • New sysbutton(4) driver for the system identification button on the Xserve G4.
    • New piixpcib(4) driver for System Management Mode initiated speedstep frequency scaling on certain pairings of the Intel PIIX4 ISA bridges and Intel Pentium 3 processors.
    • CPU frequency and voltage can now be scaled on all CPUs when running GENERIC.MP on a multiprocessor i386 or AMD64 machine with enhanced speedstep or powernow.
    • Intel enhanced speedstep is now supported on OpenBSD/amd64.
    • New support for the on die CPU temperature sensor found on the Intel Core family of processors.
    • The nvram(4) driver is now available on OpenBSD/amd64.

     

  • New tools:

     

  • New functionality:
    • FFS2, the updated version of the fast file system.
    • ftp(1) now can send cookies loaded from a netscape-like cookiejar, supports proxies requiring a password, and has a keep-alive option to avoid overly aggressive control connection dropping.
    • pkg_add(1) has been vastly improved. It is more robust, outputs more consistent error messages, and can deal with a lot more update scenarios gracefully. It also has much better look-up capabilities for multiple entries in PKG_PATH, stopping at the first directory with suitable candidates.
    • ftp-proxy(8) is now able to automatically tag packets passing through the pf(4) rule with a supplied name.
    • Kernel work queues, workq_add_task(9), workq_create(9), workq_destroy(9) provides a mechanism to defer tasks to a process context when it is impossible to run such a task in the current context.
    • ifconfig(8) now understands IP address/mask in CIDR notation.
    • Add IP (v4 and v6) load balancing to carp(4), similar to the ARP balancing.
    • sensorsd(8) now supports a zero-configuration monitoring and has a more intuitive logging for all sensors that automatically provide sensor state. It also features advancements in user-specified monitoring, including monitoring of sensors that are periodically flagged as invalid.
    • sensorsd.conf(5) now supports sensor matching by sensor type, allowing easier configuration.
    • The i386 bootloader can now load amd64 kernels.
    • The amd64 bootloader can now load i386 kernels.

     

  • Assorted improvements and code cleanup:
    • Huge performance improvements in the network stack, including:
      • In pf, store routing table ID, queue ID etc directly in the packet header mbuf instead of using mbuf tags (which use malloc'd memory). This yields a 100% improvement in pf performance.
      • Packet forwarding can skip IPSEC stack if no IPSEC flows are defined. This yields a further 5% improvement in packet forwarding performance.
      • Skip TCP/UDP/ICMP/ICMP6 checksumming when not necessary. This yields a further 10% improvement in pf performance.
      • A change in the way the kernel random pool is stirred greatly increases performance with network interface cards that support interrupt mitigation, especially on architectures where reading the clock is expensive (such as amd64).
      • Enable interrupt holdoff on sis(4) chips that support it. Significant performance gain for slower CPU devices with sis(4), such as Soekris.
    • Large (>1TB) disk and partition support in the disklabel and buffer cache code and in the userland utilities that manipulate disk blocks. Note that some parts of the system are not 64-bit disk block clean yet, so partition larger than 2TB cannot be used at the moment.
    • Large (>2^32-1 sectors) SCSI disk sizes now probed.
    • Thread support for the Objective-C library (libobjc).
    • carp route handling has been fixed, solving some problems the routing daemons were exhibiting.
    • i386 TLB handling improved to avoid possible corruption on Core2Duo processors.
    • Rework TLB shootdown code for i386 and amd64, gives fairly large speed improvements.
    • i386 and amd64 use the BIOS disk geometry when creating default disklabels.
    • Default disk geometry changed from 64 heads/32 sectors to 255 heads/63 sectors.
    • More usb devices with various quirks coaxed to work.
    • Archive/Wangtek cartridge tape drives (wt*) no longer supported.
    • rcs has improved GNU compatibility.
    • make(1) has improved stability of -j option.
    • isakmpd(8) now allows key exchange with RSA signature authentication to work with Cisco IOS.
    • Fixed isakmpd(8) interop-issues with peers, that start rekeying on port 4500 for NAT-T (e.g. Cisco, Openswan)
    • The stability of OpenBSD/alpha has been greatly improved.
    • The stability of OpenBSD/hppa has been greatly improved.

     

  • Install/Upgrade process changes:
    • Allow the specification of an NTP server during installation.
    • Allow no fsck'ing of clean non-root partitions during upgrade.
    • Check for INSTALL.<arch> to confirm sets are for the correct architecture.
    • Create and format the MSDOS partition for macppc installs in a more flexible and reliable way.

     

  • OpenBGPD 4.2:
    • Include support for Four-octet AS Number Space.
    • Allow matching on communities using 0 in the AS part.
    • Filtering on IPv6 prefixes is now possible.
    • Various bugs in the encoding of multiprotocol updates were fixed.
    • Allow the use of pkill -HUP bgpd to reload the config.
    • bgpctl can filter prefix output by community now

     

  • OpenNTPD 4.2:
    • Improved support for timedelta sensors.

     

  • OpenOSPFD 4.2:
    • Added support for RFC 3137: OSPF Stub Router Advertisement
    • It is possible to specify a carp demote group on interfaces and areas.
    • Added support for mapping route labels to AS-external route tags and vice versa.
    • Allow the use of pkill -HUP ospfd to reload the config.

     

  • Hoststated 4.2:
    • Added support for Layer 7 load balancing (or relay).
    • Added support for reloading through hoststatectl or SIGHUP.

     

  • OpenSSH 4.7:
    • Prevent ssh(1) from using a trusted X11 cookie if creation of an untrusted cookie fails; found and fixed by Jan Pechanec.
    • sshd(8) in new installations defaults to SSH Protocol 2 only. Existing installations are unchanged.
    • The SSH channel window size has been increased, and both ssh(1) and sshd(8) now send window updates more aggressively.
      These improves performance on high-BDP (Bandwidth Delay Product) networks.
    • ssh(1) and sshd(8) now preserve MAC contexts between packets, which saves 2 hash calls per packet and results in 12-16% speedup for arcfour256/hmac-md5.
    • A new MAC algorithm has been added, UMAC-64 (RFC4418) which is approximately 20% faster than HMAC-MD5.
    • A -K flag was added to ssh(1) to set GSSAPIAuthentication=Yes.
    • Failure to establish a ssh(1) TunnelForward is now treated as a fatal error when the ExitOnForwardFailure option is set.
    • ssh(1) returns a sensible exit status if the control master goes away without passing the full exit status. (bz #1261)

     

  • Over 4,500 ports, minor robustness improvements in package tools.
  • Many pre-built packages for each architecture:
    • i386: 4360
    • sparc64: 4205
    • alpha: 3779
    • sh: 817
    • amd64: 4283
    • powerpc: 4230
    • sparc: 3283
    • m68k: 1107
    • arm: 2131
    • hppa: 3215
    • vax: 108
    Some highlights:
    • Gnome 2.18.
    • GNUstep 1.14.
    • KDE 3.5.7 and koffice 1.6.3.
    • Xfce 4.4.1.
    • OpenMotif 2.3.0.
    • OpenOffice.org 2.2.1.
    • Mozilla Firefox 2.0.0.6.
    • PostgreSQL 8.2.4.
    • GHC 6.6.1 (amd64 and i386 only)

     

  • As usual, steady improvements in manual pages and other documentation.

     

  • The system includes the following major components from outside suppliers:
    • Xenocara (based on X.Org 7.2 + patches, freetype 2.2.1, fontconfig 2.4.2, expat 2.0.0, Mesa 6.5.2, xterm 225 and more)
    • Gcc 2.95.3 (+ patches) and 3.3.5 (+ patches)
    • Perl 5.8.8 (+ patches)
    • Our improved and secured version of Apache 1.3, with SSL/TLS and DSO support
    • OpenSSL 0.9.7j (+ patches)
    • Groff 1.15
    • Sendmail 8.14.1, with libmilter
    • Bind 9.3.4 (+ patches)
    • Lynx 2.8.5rel.4 with HTTPS and IPv6 support (+ patches)
    • Sudo 1.6.9p4
    • Ncurses 5.2
    • Latest KAME IPv6
    • Heimdal 0.7.2 (+ patches)
    • Arla 0.35.7
    • Binutils 2.15 (+ patches)
    • Gdb 6.3 (+ patches)
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