Copyright © 2011 The FreeBSD Documentation Project
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1.1101.2.23.2.11 2011/02/12 09:12:11 hrs Exp $
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The release notes for FreeBSD 8.2-RELEASE contain a summary of the changes made to the FreeBSD base system on the 8.2-STABLE development line. This document lists applicable security advisories that were issued since the last release, as well as significant changes to the FreeBSD kernel and userland. Some brief remarks on upgrading are also presented.
This document contains the release notes for FreeBSD 8.2-RELEASE. It describes recently added, changed, or deleted features of FreeBSD. It also provides some notes on upgrading from previous versions of FreeBSD.
This distribution of FreeBSD 8.2-RELEASE is a release distribution. It can be found at ftp://ftp.FreeBSD.org/ or any of its mirrors. More information on obtaining this (or other) release distributions of FreeBSD can be found in the “Obtaining FreeBSD” appendix to the FreeBSD Handbook.
All users are encouraged to consult the release errata before installing FreeBSD. The errata document is updated with “late-breaking” information discovered late in the release cycle or after the release. Typically, it contains information on known bugs, security advisories, and corrections to documentation. An up-to-date copy of the errata for FreeBSD 8.2-RELEASE can be found on the FreeBSD Web site.
This section describes the most user-visible new or changed features in FreeBSD since 8.1-RELEASE.
Typical release note items document recent security advisories issued after 8.1-RELEASE, new drivers or hardware support, new commands or options, major bug fixes, or contributed software upgrades. They may also list changes to major ports/packages or release engineering practices. Clearly the release notes cannot list every single change made to FreeBSD between releases; this document focuses primarily on security advisories, user-visible changes, and major architectural improvements.
Problems described in the following security advisories have been fixed. For more information, consult the individual advisories available from http://security.FreeBSD.org/.
| Advisory | Date | Topic |
|---|---|---|
| SA-10:08.bzip2 | 20 September 2010 |
Integer overflow in bzip2 decompression |
| SA-10:10.openssl | 29 November 2010 |
OpenSSL multiple vulnerabilities |
[ia64] The maximum number of pages used for DMA bounce buffer pool has been increased from 256 to 1024.[r209326]
[powerpc] The default value of kern.hz has been increased
from 100 to 1000.[r209765]
[powerpc] The SMP kernel now works on MPC7400-based Apple desktop machines such as PowerMac3,3.[r209767]
[powerpc] FreeBSD/powerpc now supports DMA bounce buffer which is required on systems with larger RAM than 4GB.[r211593]
[mips] FreeBSD/mips support has been improved. It now supports SMP on a SWARM with a dual-core Sibyte processor.[r215938]
[mips] FreeBSD/mips now supports Netlogic Microsystems' XLR and XLS multi-core processor families.
[sparc64] FreeBSD/sparc64 now supports reservation-based physical memory allocation which provides better performance.[r215598]
[amd64] FreeBSD/amd64 now always sets the KVA space as equal to or larger than physical memory size. The default size was calculated based on one-third of the physical memory size by a code derived from one for i386. It has been changed because constraints for memory space are not severe on amd64 and this change would help to prevent a “kmem_map too small” panic which often occurs when using ZFS.[r214620]
[amd64, i386] CPU topology detection for Intel CPUs has been improved.[r214621]
[amd64, i386] ACPI suspend/resume functionality support has been improved.[r215513]
[amd64, i386] FreeBSD kernel now supports kern_fpu_enter() and kern_fpu_leave() KPIs which allow the kernel subsystems to use
XMM register files used in Intel SSE (Streaming SIMD Extensions).[r215513]
[amd64, i386, ia64] The
acpi(4) driver
now uses ACPI Reset Register capability by default only when a flag in the FADT which
indicates it is available. This behavior was controlled by a
sysctl(8)
variable hw.acpi.handle_reboot and the default value was
always set to 0.[r215006]
[amd64, i386, ia64] The
acpi(4) driver
now supports new loader tunables hw.acpi.install_interface
and hw.acpi.remove_interface. For more details, see
acpi(4) manual
page.[r215521]
The ddb(8) kernel debugger now supports an optional delay in reset and reboot commands. This allows an administrator to break the system into debugger and trigger automatic textdump when an unattended panic occurs.[r209692]
The ddb(8) kernel debugger now supports a show cdev command. This displays the list of all created cdev's, consisting of devfs node name and struct cdev address.[r212230]
The FreeBSD GENERIC kernel is now compiled with KDB and KDB_TRACE options. From
8.2-RELEASE the kernel supports displaying a stack trace on panic by using
stack(9)
facility with no debugger backend like
ddb(8). Note
that this does not change the default behaviors of the GENERIC
kernel on panic.[r214326]
The following
sysctl(8)
variables are also now loader tunables: vm.kmem_size, vm.kmem_size_max, and vm.kmem_size_min, debug.kdb.stop_cpus, debug.trace_on_panic, and kern.sync_on_panic. Also, new
sysctl(8)
variables vm.kmem_map_size for the current kmem map size and
vm.kmem_map_free for largest contiguous free range in kmem
map, vfs.ncsizefactor for size factor for namecache, and
vfs.ncnegfactor for ratio of negative namecache entries have
been added.[r213554, r213556, r213560]
The FreeBSD memguard(9) framework has been improved to make it able to detect use-after-free of allocated memories over a longer time. For more details, see memguard(9) manual page.[r212427]
PT_LWPINFO request to obtain information about the kernel
thread that caused the traced process to stop in the
ptrace(2)
process tracing and debugging facility has been improved. It now reports system call
entry and leave events, as well as availability of siginfo_t
accompanying the reported signal.[r214756]
The FreeBSD crypto(4) framework (opencrypto) now supports XTS-AES (XEX-TCB-CTS, or XEX-based Tweaked Code Book mode with CipherText Stealing), which is defined in IEEE Std. 1619-2007.[r214254]
[amd64] Xen HVM support in FreeBSD/amd64 kernel has been improved. For more details, see xen(4) manual page.[r215788]
[amd64, i386] The qpi(4) pseudo bus driver has been added. This supports extra PCI buses on Intel QPI chipsets where various hardware such as memory controllers for each socket is connected.[r214784]
FreeBSD now fully supports GPT (GUID Partition Table). Checksums of primary header and primary partition table are verified properly now.[r213994]
[powerpc] Memory management issues which prevents FreeBSD OpenFirmware loader and netbooting from working have been fixed.[r215919, r215920]
The pxeboot(8) now uses NFS version 3 instead of version 2 by default.[r212717]
[amd64, i386] The aesni(4) driver, which supports AES accelerator on Intel CPUs has been added. This accelerates AES operations for crypto(4).[r215633]
[amd64, i386] The aibs(4) driver has been added. This supports the hardware sensors in ASUS motherboards and replaces the acpi_aiboost(4) driver.[r210476]
[amd64, i386] The coretemp(4) driver now supports Xeon 5500/5600 series.[r211914]
[powerpc] FreeBSD/powerpc now supports I2C bus in Apple System Management Unit.[r215694]
[powerpc] A device driver which supports CPU temperature sensors on PowerMac 11,2 has been added.[r215695]
The ehci(4), ohci(4), and uhci(4) driver now support LOW speed BULK transfer mode.[r215482]
[amd64, i386] The ichwd(4) driver now supports Intel NM10 Express chipset watchdog timer.[r209952]
The tpm(4) driver, which supports Trusted Platform Module has been added.[r215036]
The xhci(4) driver, which supports Extensible Host Controller Interface (xHCI) and USB 3.0 has been added.[r215944]
The FreeBSD Linux emulation subsystem now supports video4linux API. This requires native video4linux hardware drivers such as the ones provided by multimedia/pwcbsd and multimedia/webcamd.
MIDI input buffer size in the uaudio(4) driver has been changed. This fixes a problem where the input appears several seconds late.[r215483]
An issue in the uaudio(4) driver which prevents some USB audio devices from working has been fixed.[r215484]
The alc(4) driver now supports Atheros AR8151/AR8152 PCIe Gigabit/Fast Ethernet controllers.[r212021]
A bug in the alc(4) driver which can lead to a system freeze when the system is booted without a cable plugged in has been fixed. The symptom was found in AR8132 on EEE PC.[r215003]
The TX interrupt moderation timer in the alc(4) driver has been reduced from 50ms to 1ms. The 50ms timer resulted in a poor UDP performance.[r212011]
The axe(4) driver has been improved for stability and better performance on the TX packet rate.[r214297, r214298, r214301]
The bge(4) driver now supports BCM5718 family. This family is the successor to the BCM5714/BCM5715 family and supports IPv4/IPv6 checksum offloading, TSO, VLAN hardware tagging, jumbo frames, MSI/MSIX, IOV, RSS and TSS. The current version of the driver supports all hardware features except IOV and RSS/TSS.[r214997]
A bug in the bge(4) driver which prevents TSO in BCM57780 from working has been fixed.[r211367]
A bug in the bge(4) driver which can wrongly disable the TX checksum offloading feature as well when one tries only the RX checksum offloading has been fixed.[r214700]
Some improvements for reliability of the bge(4) driver with BCM5906 controller has been added.[r214714]
The
bge(4) driver
now supports hardware MAC statistics in controller's internal memory for BCM5705 or newer
Broadcom controllers. These counters can be accessed via
sysctl(8)
variable dev.bge.N.stats.* and provide useful information to
diagnose driver issues.[r214698]
UDP checksum offloading in the bge(4) driver has been disabled by default. This is because Broadcom controllers have a bug which can generate UDP datagrams with checksum value 0 when TX UDP checksum offloading is enabled. The checksum offloading can be enabled by using the following loader tunable:[r213109]
dev.bge.N.forced_udpcsum
A bug in the bge(4) driver which can lead to poor performance on a system with RAM larger than 4GB has been fixed. The cause was that all of Broadcom controllers except for BCM5755 and later has 4GB boundary DMA bug and the inefficient use of bounce buffer.[r213593]
The bwi(4) driver, which supports Broadcom BCM430* and BCM431* family Wireless Ethernet controllers, has been added. This is not compiled into the GENERIC kernel because there are some problems. The kernel module if_bwi.ko is available and can be loaded without recompiling the kernel to enable this driver.[r212275]
A bug in the bwn(4) driver which prevents WPA authentication from working has been fixed.[r212274]
A bug in the cdce(4) driver has been fixed.[r215499]
The
cxgb(4) driver
now supports the following new
sysctl(8)
variables: hw.cxgb.nfilters sets the maximum number of
entries in the hardware filter table, dev.cxgbc.N.pkt_timestamp provides packet timestamp instead
of connection hash, and dev.cxgbc.N.core_clock provides the core clock frequency in
kHz.[r211848]
The em(4) driver has been updated to version 7.1.9.
The igb(4) driver has been updated to version 2.0.7.
The em(4) and igb(4) drivers now provide statistics counters as sysctl(8) MIB objects.[r209309]
The em(4) and igb(4) drivers now support led(4) interface via /dev/led/emN and /dev/led/igbN for identification LED control. The following command line makes the LED blink on em0:[r211241]
# echo f2 > /dev/led/em0
The epair(4) virtual Ethernet interface driver now supports explicit UP/DOWN linkstate. This fixes an issue when it is used with the carp(4) protocol.[r212150]
The fxp(4) driver now supports TSO over VLAN on i82550 and i82551 controllers.[r214717]
The iwn(4) driver now supports Intel Wireless WiFi Link 6000 series. The firmware has been updated to version 9.221.4.1.[r210673]
The ixgbe(4) driver is now also provided as a kernel module.[r212386]
The ixgbe(4) driver has been updated to version 2.3.8. It now supports 82599, better interrupt handling, hardware assist to LRO, VM SRIOV interface, and so on.[r209308, r215970, r217593]
The miibus(4) has been rewritten for the generic IEEE 802.3 annex 31B full duplex flow control support. The alc(4), bge(4), bce(4), cas(4), fxp(4), gem(4), jme(4), msk(4), nfe(4), re(4), stge(4), and xl(4) drivers along with atphy(4), bmtphy(4), brgphy(4), e1000phy(4), gentbi(4), inphy(4), ip1000phy(4), jmphy(4), nsgphy(4), nsphyter(4), and rgephy(4) have been updated to support flow control via this facility.[r211379, r215881, r215890, r2105894, r216002, r216023, r216029, r216031, r216033]
The mwlfw(4) driver is now also provided as a kernel module.[r212386]
A bug in the mxge(4) driver which prevents TSO from working has been fixed.[r216054]
The nfe(4) driver now supports WoL (Wake on LAN).[r215456]
The re(4) driver now supports 64-bit DMA addressing for RTL810xE/RTL8168/RTL8111 PCIe controllers.[r215218]
The re(4) driver now supports hardware interrupt moderation of TX completion interrupt on RTL8169/RTL8168 controllers.[r215405]
The rl(4) driver now supports WoL (Wake on LAN) on RTL8139B or newer controllers.[r211377]
The
rl(4) driver now
supports reading hardware statistics counters by setting a
sysctl(8)
variable dev.rl.N.stats
to 1.[r215222]
The rl(4) driver now supports a device hint to change a way of register access. Although some newer RTL8139 controllers support memory-mapped register access, it is difficult to detect the support automatically. For this reason the driver uses I/O mapping by default and provides the following device hint. If it is set to 0, the driver uses memory mapping for register access.[r212039]
hint.rl.N.prefer_iomap="0"
Note that the default value is 1.
The rl(4) driver has been improved on interrupt handling. It now has better TX performance under high RX load.[r214407]
A bug in the sk(4) driver has been fixed. It did not program the station address for Yukon controllers and overriding the station address with ifconfig(8) was not possible.[r215216]
The
sk(4) driver now
disable TX checksum offloading by default. This is because some revision of Yukon
controller generates corrupted frames. The checksum offloading can be enabled manually by
using txcsum option in the
ifconfig(8)
utility.[r211359]
The sis(4) driver now works on all supported platforms. Some stability and performance issues have also been fixed.[r212468, r213612, r213628]
The sis(4) driver now supports WoL (Wake on LAN) on NS DP8315 controller.[r213637]
A tunable dev.sis.N.manual_pad for the
sis(4) driver
has been added. This controls whether padding with 0x00 for short frames by software, not
the controller. The reason why this tunable has been added is that NS DP83815/DP83816
pads them with 0xff though RFC 1042 specifies it should be 0x00. The tunable is disabled
by default, which means padding with 0xff is used because padding with 0x00 by software
needs extra CPU cycles. Setting a non-zero value enables the software padding.[r213626]
The ste(4) driver now supports a device hint to change a way of register access. Although it uses memory-mapped register access by default, some old IC Plus Corp (formerly Sundace) controllers are found unstable. The following device hint makes the driver use I/O mapping for register access:[r211357]
hint.ste.N.prefer_iomap="1"
The xl(4) driver now supports WoL (Wake on LAN). Note that not all controllers support this functionality and some need an additional remote wakeup cable.[r213120]
The alq(9) support is now provided as a kernel module alq.ko.[r209783]
A bug in the
ipfw(4) packet
filter subsystem has been fixed. The
sysctl(8)
variable net.inet.ip.fw.one_pass did not work for netgraph action and in-kernel NAT.[r212738, r216348]
A new loader tunable net.link.ifqmaxlen has been added.
It specifies the default value of send interface queue length. The default value for this
parameter is 50.[r215342]
A ngtee action in the ipfw(4) packet filter subsystem has been changed. It no longer accepts a packet.[r212742]
A possible panic in the ipfw(4) pseudo interface for logging has been fixed.[r214108]
IPsec flow distribution has been improved for more parallel processing.[r209691]
A bug in FreeBSD IPv4 stack that a proxy ARP entry cannot be added over netgraph(4) interfaces has been fixed.[r209277]
A bug in FreeBSD IPv6 stack which prevents an -I in the
ping6(8) utility
from working with net.inet6.ip6.use_defaultzone=1 has been
fixed.[r211435]
The
lagg(4)
interface now supports a
sysctl(8)
variable net.link.lagg.failover_rx_all. This controls
whether to accept input packets on any link in a failover lagg.[r214111]
The ng_eiface(4) netgraph(4) node now supports VLAN-compatible MTU and an MTU size which is larger than 1500.[r215869]
The ng_ether(4) netgraph(4) node now supports interface transfer between multiple virtual network stacks by ifconfig(8) vnet command. A ng_ether(4) node associated with an network interface is now destroyed and recreated when the network interface is moved to another vnet.[r212320]
A new netgraph(4) node ng_patch(4) has been added. This performs data modification of packets passing through. Modifications are restricted to a subset of C language operations on unsigned integers of 8, 16, 32 or 64-bit size.[r209843]
An ICMP unreachable problem in the pf(4) packet filter subsystem when TSO support is enabled has been fixed.[r212905]
A TCP bandwidth delay product window limiting algorithm by a
sysctl(8)
variable net.inet.tcp.inflight.enable is now disabled by
default. It has been found that this algorithm is inefficient on a fast network with
smaller RTT than 10ms. It had been enabled by default since 5.2-RELEASE, and then had
been disabled only if the RTT was lesser than 10ms since 7.0-RELEASE. Pluggable TCP
congestion control algorithm modules are planned to be added for the future releases.[r211538]
A bug in FreeBSD TCP Path MTU discovery which can lead to a wrong calculation for a smaller MTU than 256 octets has been fixed. Note that this bug does not affect when MTU is equal to or larger than 256 octets.[r211602]
The TCP initial window increase in RFC 3390 which can be controlled by a
sysctl(8)
variable net.inet.tcp.rfc3390 now reduces the congestion
window to the restart window if a TCP connection has been idle for one retransmit timeout
or more. For more details, see RFC 5681 Section 4.1.[r211870]
The siftr(4), Statistical Information For TCP Research (SIFTR) kernel module has been added. This is a facility that logs a range of statistics on active TCP connections to a log file. It provides the ability to make highly granular measurements of TCP connection state, aimed at system administrators, developers and researchers.[r214859]
FreeBSD virtual network stack (vnet) now supports IPv4 multicast routing.[r212319]
The ahci(4) driver now disables NCQ and PMP support on VIA VT8251 because they are unreliable under load.[r211458]
The ahci(4) driver now uses 15 seconds for device reset timeout instead of 10 seconds because some devices needs 10-12 seconds to spin up.[r211718]
The arcmsr(4) driver has been updated to version 1.20.00.19.[r215825]
The
ada(4) driver
now supports a new
sysctl(8)
variable kern.cam.ada.spindown_shutdown which controls
whether or not to spin-down disks when shutting down if the device supports the
functionality. The default value is 1.[r215173]
The
ata(4) driver
now supports limiting initial ATA mode for devices via device hints hint.devname.unit.devN.mode
or hint.devname.unit.mode. The valid values are the same as ones
supported in the
atacontrol(8)
and
camcontrol(8).[r210164]
The
ata(4) driver
now disables cable status check on both of controller and device side when the loader
tunable hw.ata.ata_dma_check_80pin is 0. The check on controller side was performed regardless of this
loader tunable.[r210204]
The
ata(4) driver
now reports SATA power management capabilities to
CAM(4) layer
when ATA_CAM is enabled. This allows a device to initiate
transitions if controller configured to accept it. This makes hint.ata.N.pm_level=1 mode
work.[r215777]
The ata(4) driver has been improved on hotplugging and connection speed reporting support for some Intel SATA controllers including ICH5 and ICH8+ operating in legacy mode.[r214671]
An issue of device detection of Serverworks K2 SATA controllers in the ata(4) has been fixed.[r213291]
A bug in the ata(4) driver which prevents some Silicon Image chipsets from working on big endian systems has been fixed.[r214667]
The gconcat(8) GEOM class now supports kernel crash dump. The dumping is performed to the component where a dump partition begins.[r214330]
A bug in the geli(8) GEOM class on little endian platforms has been fixed. The metadata version has been updated to 4 due to this.[r214405]
The
geli(8) GEOM
class now supports a
sysctl(8)
variable kern.geom.eli.overwrites. This specifies the number
of times on-disk keys should be overwritten when destroying them. The default value is
5.[r214405]
The geli(8) GEOM class has been improved for preventing the same encryption key from being used in 2^20 blocks (sectors).[r214405]
The geli(8) GEOM class now uses XTS-AES mode by default.[r214405]
A
sysctl(8)
variable kern.geom.eli.debug now allows a value -1. This means turn off any log messages of the
geli(8) GEOM
class.[r214405]
The mpt(4) driver now supports larger I/O sizes which the device and CAM(4) subsystem can support. This was limited to 64KB, and the number of scatter/gather segments was limited to 33 on platforms with 4K pages.[r210376]
The twa(4) driver has been updated. The version number is 3.80.06.003.[r209404]
The linprocfs(5) Linux process file system now supports proc/$$/environment.[r214050]
The FreeBSD NFS client now supports a kernel environment variable boot.nfsroot.nfshandlelen. This lets the diskless root file system
on boot to use NFS version 3 and the specified file handle length. If this variable is
not set, NFS version 2 is used.[r212716]
The ZFS on-disk format has been updated to version 15.[r212668]
The ZFS metaslab code has been updated. This provides a noticeable improvement on write speed, especially on pools with less than 30% of free space. The related OpenSolaris Bug IDs are 6826241, 6869229, 6918420, and 6917066.[r212671]
The ZFS now supports offlining of log devices. The related OpenSolaris Bug IDs are 6599442, 6726045, and 6803605.[r214013]
Performance improvements for the ZFS have been imported from OpenSolaris. They include caching of ACL permission checks, faster handling of stat(2), mitigation of mutex lock contention. The related OpenSolaris Bug IDs are 6802734, 6844861, 6848431, 6775100, 6827779, 6857433, 6860318, 6865875, 6867395, 6868276, and 6870564.[r212672]
The default value of vfs.zfs.vdev.max_pending has been
decreased from 35 to 10 (OpenSolaris Bug ID is 6891731) to improve latency.[r210541]
Various bugs in the ZFS subsystem have been fixed. The related OpenSolaris Bug IDs are: 6328632, 6396518, 6501037, 6504953, 6542860, 6551866, 6572357, 6572376, 6582163, 6586537, 6595194, 6596237, 6604992, 6621164, 6623978, 6633095, 6635482, 6664765, 6674216, 6696242, 6696858, 6702206, 6710376, 6713916, 6717022, 6722540, 6722991, 6737463, 6739487, 6739553, 6740164, 6745863, 6747596, 6747698, 6748436, 6755435, 6757430, 6758107, 6759986, 6759999, 6761100, 6761406, 6764124, 6765294, 6767129, 6769612, 6770866, 6774713, 6774886, 6775697, 6776104, 6776548, 6780491, 6784104, 6784108, 6785914, 6788152, 6788830, 6789318, 6790064, 6790345, 6790687, 6791064, 6791066, 6791071, 6791101, 6792134, 6792139, 6792884, 6793430, 6794136, 6794570, 6794830, 6797109, 6797118, 6798384, 6798878, 6799895, 6800184, 6800942, 6801507, 6801810, 6803343, 6803822, 6804954, 6807339, 6807765, 6809340, 6809683, 6809691, 6810367, 6815592, 6815893, 6816124, 6818183, 6821169, 6821170, 6822816, 6824006, 6824062, 6824968, 6826466, 6826468, 6826469, 6826470, 6826471, 6826472, 6827260, 6830237, 6830541, 6833162, 6833711, 6833999, 6834217, 6836714, 6836768, 6838062, 6838344, 6841321, 6843014, 6843069, 6843235, 6844069, 6844900, 6847229, 6848242, 6856634, 6857012, 6861983, 6862984, 6863610, 6870564, 6880764, 6882227, 6892298, 6898245, 6906110, 6906946, 6939941, 6950219, 6951024, and 6953403.
The arp(8) utility has been improved. It now runs faster even when a single interface has a number of aliases.[r209267]
A bug in the
b64decode(1)
which prevents an -r option from handling arbitrary breaks in
a base64 encoded string has been fixed.[r214729]
The calendar(1) utility now supports repeating events which span multiple years, lunar events, and solar events.[r211723]
The dhclient(8) utility now reports a reason for exiting and the 10-second period in which the dhclient(8) ignores routing messages has been changed to start just after dhclient-script starts instead of just after it finished. This change fixes a symptom that dhclient(8) silently exits under a certain condition.[r210915]
Userland support for the dtrace(1) subsystem has been added. This allows inspection of userland software itself and its correlation with the kernel, thus allowing a much better picture of what exactly is going on behind the scenes. The dtruss(1) utility has been added and the libproc has been updated to support the facility.[r214983]
The
du(1) utility
now supports a -t threshold option to display entries that exceeds
the value of threshold. If the value is negative, it
displays entries with a value less than the absolute value of threshold.[r209362]
The fdisk(8) utility now supports partitions which are provided by gjournal(8) or geli(8) GEOM class.[r215667]
The
gcore(1) utility
now supports an -f flag which forces a full dump of all the
segments except for the malformed ones.[r210567]
The geli(8) utility now supports resize subcommand to resize encrypted file systems prior to growing it.[r214405]
The geli(8) utility now supports suspend and resume subcommands. The suspend subcommand makes geli(8) devices wait for all in-flight I/O requests, suspend new I/O requests, remove all geli(8) sensitive data from the kernel memory (like encryption keys) and will wait for either geli resume or geli detach command. For more information, see geli(8) manual page.[r214405]
The
geli(8) utility
now checks the metadata provider size strictly. If the check fails, the provider is not
attached. A new option -f can override this behavior.[r214405]
The
geli(8) utility
now supports -J newpassfile and -j passfile options for loading passphrase from a
file.[r214405]
The gethost*(), getnet*(),
and getproto*() functions now set the errno to ERANGE and the NSS backend terminates with NS_RETURN when the result buffer size is too small.[r211938]
The gpart(8) utility now supports resize command to resize partitions for all schemes but EBR.[r209497]
The gpart(8) utility now supports backup and restore subcommands to backup partition tables and restore them.[r215941]
The gpart(8) utility now handles given geom/provider names with and without /dev/ prefix.[r213661]
The
gpart(8) utility
now supports an -F option for force
subcommand. This option force destroying of the partition table even if it is not
empty.[r213684]
The gpart(8) utility now supports a recover subcommand for GPT partition tables. A corrupted GPT is now marked when the following three types of corruption:[r213684]
Primary GPT header or table is corrupted.
Secondary GPT header or table is corrupted.
Secondary GPT header is not located at the last LBA.
Any changes to the corrupted GPT table is not allowed except for destroy and recover subcommands.
The gpart(8) utility now supports GPT_ENT_ATTR_BOOTME, GPT_ENT_ATTR_BOOTONCE, and GPT_ENT_ATTR_BOOTFAILED attributes in GPT. The attribute keywords in the command line are bootme, bootonce, and bootfailed respectively.[r213994]
An issue in the newfs(8) utility has been fixed. A UFS1 file system created with 64KB blocksize was incorrectly recognized as one with a broken superblock. This is because FreeBSD kernel checks UFS2 superblock at 64KB offset in the partition first, and UFS1 with 64KB blocksize has an alternative superblock at the same location. For example, a file system created by newfs -U -O 1 -b 65536 -f 8192 could lead to this symptom.[r215728]
The hastd(8) utility now supports SIGHUP for reloading the configuration file. When SIGTERM or SIGINT is received, the worker processes terminate.[r213049]
The ifconfig(8) utility now check an invalid CIDR subnet notation more strictly. It wrongly accepted 10.0.0.1/10.0.0.1 as 10.0.0.1/10.[r212144]
An accuracy issue in the jn(3) and jnf(3) functions in libm has been fixed.[r215237]
Incorrect behaviors in stuttering sequences and reverse ranges in the jot(1) utility have been fixed.[r209284]
The libarchive and tar(1) utility now support LZMA (Lempel-Ziv-Markov chain-Algorithm) compression format.[r213667]
The
tar(1) utility
now supports a blocksize which is up to 8192 (4MB) in the -b blocksize option.[r215229]
A bug in the lpr(1) utility which prevents it from working with some files on a ZFS file system has been fixed.[r214442]
The -p option in the
mount(8) utility
now displays rw mount option correctly as in the
fstab(5)
format.[r213978]
The
ncal(1) utility
has been updated. The option -b has been replaced with -C and -B number. Options -3 to
show previous, this and next month, and -A number to show months after this month have been
added. The option -m N YYYY now prints only the month, not the whole
year.[r213889]
The
newsyslog(8)
utility now supports an -S pidfile option to override the default
syslogd(8) PID
file.[r211699]
The newsyslog(8) utility now supports a special log file name <include> for processing file inclusion. Globbing in the file name and circular dependency detection are supported. For more details, see newsyslog.conf(5) manual page.[r215622]
The ntpd(8) utility is now compiled with shared memory reference clock driver. For example, GPS devices can be used as source of precise time via astro/gpsd in the Ports Collection.[r213980]
An off-by-one error in the pax(1) utility when ustar file name is too long has been fixed.[r212848]
The
pkill(1) utility
now supports an -l option which the
kill(1) utility
does.[r209912]
The
pmcstat(8)
utility now supports a file and a network socket as a top source. A new option -O filename specifies to send
log output to filename, and another new option -R filename specifies to
receive events from filename. For a socket, the filename is in a form of ipaddr:port. This allows top monitoring over TCP on a
system with no local symbols, for example.[r211098]
The
pom(6) utility
now supports a -p flag to print only the percentage.[r210089]
The
powerd(8)
utility now supports an -m freq and -M freq to control the minimum and maximum frequency,
respectively.[r212472]
The ruptime(1) utility now displays hostnames longer than 12 characters.[r213825]
A behavior of the
sh(1) program
when an -u option is specified has been changed. The special
parameters $@ and $* no longer
cause an error when there are no positional parameters.[r215066]
A bug in the sh(1) program has been fixed. A SIGINT signal is now passed through from a child process if the shell is interactive and the job control is enabled. For example, aborting sleep(1) command by Ctrl-C no longer display ok in the following command line:[r210616]
% sleep 5; echo ok
The sh(1) program now supports a bg command consisting solely of redirections. For example:[r210732]
% < /dev/null &
The sleep(1) utility now supports SIGINFO signal and reports the specified sleep time and the remaining time.[r211536]
The tftp(1) and tftpd(8) utilities have been improved for better interoperability and they now supports RFC 1350, 2347, 2348, 2349, and 3617.[r213036, r213038]
A bug in [=]=] equivalent class handling in the tr(1) utility has been fixed. A closing bracket immediately after [= was incorrectly treated as special.[r213899]
The
uname(1) utility
now supports an -o flag as a synonym for the -s flag for compatibility with other systems.[r210566]
Bugs in vi(1) utility have been fixed. They include handling of ^@ and ^C in insert mode when reading an ex command.[r211060]
The watchdogd(8) program now set MADV_PROTECT memory flag onto themselves to protect from being terminated by the FreeBSD kernel when available memory becomes short. This kind of process termination happens in a swap-intensive workload.[r214345]
The set sharenfs command in the
zfs(8) utility
now supports sec option.[r209870]
A periodic script for zfs scrub has been added. For more details, see periodic.conf(5) manual page.
A periodic script which can be used to find installed ports' files with mismatched checksum has been added. For more details, see periodic.conf(5)
The ACPI-CA has been updated to 20101013.
The ee(1) program has been updated to version 1.5.2.[r214287]
ISC BIND has been updated to version 9.6-ESV-R3.
netcat has been updated to version 4.8.
OpenSSL has been updated to version 0.9.8q.
The timezone database has been updated to the tzdata2010o release.
The xz program has been updated from snapshot as of 12 April 2010 to 5.0.0 release
The pkg_create(1) utility now supports LZMA (xz) compression. Note that the default is still bzip2.[r215738]
The sysinstall(8) utility now uses the following numbers for default and minimum partition sizes: 1GB for /, 4GB for /var, and 1GB for /tmp.[r211007]
The sysinstall(8) utility now attempts to enable getty(8) on a serial port when no VGA card on the system.[r211009]
The supported version of the GNOME desktop environment (x11/gnome2) has been updated to 2.32.1.
The supported version of the KDE desktop environment (x11/kde4) has been updated to 4.5.5.
[amd64, i386] Upgrades between RELEASE versions (and snapshots of the various security branches) are supported using the freebsd-update(8) utility. The binary upgrade procedure will update unmodified userland utilities, as well as unmodified GENERIC kernel distributed as a part of an official FreeBSD release. The freebsd-update(8) utility requires that the host being upgraded has Internet connectivity.
An older form of binary upgrade is supported through the Upgrade option from the main sysinstall(8) menu on CDROM distribution media. This type of binary upgrade may be useful on non-i386, non-amd64 machines or on systems with no Internet connectivity.
Source-based upgrades (those based on recompiling the FreeBSD base system from source code) from previous versions are supported, according to the instructions in /usr/src/UPDATING.
Important: Upgrading FreeBSD should, of course, only be attempted after backing up all data and configuration files.
This file, and other release-related documents, can be downloaded from ftp://ftp.FreeBSD.org/.
For questions about FreeBSD, read the documentation before contacting <questions@FreeBSD.org>.
For questions about this documentation, e-mail <doc@FreeBSD.org>.