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<div class="TITLEPAGE">
<h1 class="title"><a id="AEN2" name="AEN2">FreeBSD 9.1-RELEASE Release Notes</a></h1>
<h3 class="corpauthor">The FreeBSD Project</h3>
<p class="copyright">Copyright © 2012 The FreeBSD Documentation Project</p>
<p class="pubdate">$FreeBSD: stable/9/release/doc/en_US.ISO8859-1/relnotes/article.xml
244869 2012-12-30 17:54:25Z hrs $<br />
</p>
<div class="legalnotice"><a id="trademarks" name="trademarks"></a>
<p>FreeBSD is a registered trademark of the FreeBSD Foundation.</p>
<p>IBM, AIX, EtherJet, Netfinity, OS/2, PowerPC, PS/2, S/390, and ThinkPad are trademarks
of International Business Machines Corporation in the United States, other countries, or
both.</p>
<p>IEEE, POSIX, and 802 are registered trademarks of Institute of Electrical and
Electronics Engineers, Inc. in the United States.</p>
<p>Intel, Celeron, EtherExpress, i386, i486, Itanium, Pentium, and Xeon are trademarks or
registered trademarks of Intel Corporation or its subsidiaries in the United States and
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in the United States and other countries. SPARC International, Inc owns all of the SPARC
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<p>Many of the designations used by manufacturers and sellers to distinguish their
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<div>
<div class="abstract"><a id="AEN18" name="AEN18"></a>
<p>The release notes for FreeBSD 9.1-RELEASE contain a summary 	of the changes made
to the FreeBSD base system on the 	9.1-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.</p>
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<hr />
</div>
<div class="TOC">
<dl>
<dt><b>Table of Contents</b></dt>
<dt>1 <a href="#intro">Introduction</a></dt>
<dt>2 <a href="#new">What's New</a></dt>
<dd>
<dl>
<dt>2.1 <a href="#security">Security Advisories</a></dt>
<dt>2.2 <a href="#kernel">Kernel Changes</a></dt>
<dd>
<dl>
<dt>2.2.1 <a href="#boot">Boot Loader Changes</a></dt>
<dt>2.2.2 <a href="#proc">Hardware Support</a></dt>
<dt>2.2.3 <a href="#net-proto">Network Protocols</a></dt>
<dt>2.2.4 <a href="#disks">Disks and Storage</a></dt>
<dt>2.2.5 <a href="#fs">File Systems</a></dt>
</dl>
</dd>
<dt>2.3 <a href="#userland">Userland Changes</a></dt>
<dd>
<dl>
<dt>2.3.1 <a href="#periodic-scripts"><a
href="http://www.FreeBSD.org/cgi/man.cgi?query=periodic&sektion=8&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry">periodic(8)</span></a> Scripts</a></dt>
<dt>2.3.2 <a href="#rc-scripts"><a
href="http://www.FreeBSD.org/cgi/man.cgi?query=rc&sektion=8&manpath=FreeBSD+9.1-RELEASE"><span
class="citerefentry">rc(8)</span></a> Scripts</a></dt>
</dl>
</dd>
<dt>2.4 <a href="#contrib">Contributed Software</a></dt>
<dt>2.5 <a href="#releng">Release Engineering and Integration</a></dt>
</dl>
</dd>
<dt>3 <a href="#upgrade">Upgrading from previous releases of FreeBSD</a></dt>
<dd>
<dl>
<dt>3.1 <a href="#AEN1113">Upgrading using <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=freebsd-update&sektion=8&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry">freebsd-update(8)</span></a> or a source-based
	procedure</a></dt>
<dt>3.2 <a href="#AEN1133">User-visible incompatibilities</a></dt>
</dl>
</dd>
</dl>
</div>
<div class="sect1">
<h2 class="sect1"><a id="intro" name="intro">1 Introduction</a></h2>
<p>This document contains the release notes for FreeBSD 9.1-RELEASE. It describes
recently added, changed, or deleted features of FreeBSD. It also provides some notes on
upgrading from previous versions of FreeBSD.</p>
<p>This distribution of FreeBSD 9.1-RELEASE is a release distribution. It can be found at
<a href="http://www.FreeBSD.org/releases/"
target="_top">http://www.FreeBSD.org/releases/</a> or any of its mirrors. More
information on obtaining this (or other) release distributions of FreeBSD can be found in
the <a href="../../../../doc/en_US.ISO8859-1/books/handbook/mirrors.html"
target="_top">“Obtaining FreeBSD” appendix</a> to the <a
href="../../../../doc/en_US.ISO8859-1/books/handbook/" target="_top">FreeBSD
Handbook</a>.</p>
<p>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 9.1-RELEASE can be found on the FreeBSD Web site.</p>
</div>
<div class="sect1">
<hr />
<h2 class="sect1"><a id="new" name="new">2 What's New</a></h2>
<p>This section describes the most user-visible new or changed features in FreeBSD since
9.0-RELEASE.</p>
<p>Typical release note items document recent security advisories issued after
9.0-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.</p>
<div class="sect2">
<hr />
<h3 class="sect2"><a id="security" name="security">2.1 Security Advisories</a></h3>
<p>Problems described in the following security advisories have 	been fixed. For more
information, consult the individual 	advisories available from 	<a
href="http://security.FreeBSD.org/" target="_top">http://security.FreeBSD.org/</a>.</p>
<div class="informaltable"><a id="AEN38" name="AEN38"></a>
<table border="0" frame="void" width="100%" class="CALSTABLE">
<col width="20%" />
<col width="20%" />
<col width="60%" />
<thead>
<tr>
<th>Advisory</th>
<th>Date</th>
<th>Topic</th>
</tr>
</thead>
<tbody>
<tr>
<td><a href="http://security.freebsd.org/advisories/FreeBSD-SA-12:01.openssl.asc"
target="_top">SA-12:01.openssl</a></td>
<td>3 May 2012</td>
<td>
<p>OpenSSL multiple vulnerabilities</p>
</td>
</tr>
<tr>
<td><a href="http://security.freebsd.org/advisories/FreeBSD-SA-12:02.crypt.asc"
target="_top">SA-12:02.crypt</a></td>
<td>30 May 2012</td>
<td>
<p>Incorrect <code class="function">crypt()</code> hashing</p>
</td>
</tr>
<tr>
<td><a href="http://security.freebsd.org/advisories/FreeBSD-SA-12:03.bind.asc"
target="_top">SA-12:03.bind</a></td>
<td>12 June 2012</td>
<td>
<p>Incorrect handling of zero-length RDATA fields in <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=named&sektion=8&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">named</span>(8)</span></a></p>
</td>
</tr>
<tr>
<td><a href="http://security.freebsd.org/advisories/FreeBSD-SA-12:04.sysret.asc"
target="_top">SA-12:04.sysret</a></td>
<td>12 June 2012</td>
<td>
<p>Privilege escalation when returning from kernel</p>
</td>
</tr>
<tr>
<td><a href="http://security.freebsd.org/advisories/FreeBSD-SA-12:05.bind.asc"
target="_top">SA-12:05.bind</a></td>
<td>6 August 2012</td>
<td>
<p><a
href="http://www.FreeBSD.org/cgi/man.cgi?query=named&sektion=8&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">named</span>(8)</span></a> DNSSEC
validation Denial of Service</p>
</td>
</tr>
<tr>
<td><a href="http://security.freebsd.org/advisories/FreeBSD-SA-12:06.bind.asc"
target="_top">SA-12:06.bind</a></td>
<td>22 November 2012</td>
<td>
<p>Multiple Denial of Service vulnerabilities with <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=named&sektion=8&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">named</span>(8)</span></a></p>
</td>
</tr>
<tr>
<td><a href="http://security.freebsd.org/advisories/FreeBSD-SA-12:07.hostapd.asc"
target="_top">SA-12:07.hostapd</a></td>
<td>22 November 2012</td>
<td>
<p>Insufficient message length validation for EAP-TLS messages</p>
</td>
</tr>
<tr>
<td><a href="http://security.freebsd.org/advisories/FreeBSD-SA-12:08.linux.asc"
target="_top">SA-12:08.linux</a></td>
<td>22 November 2012</td>
<td>
<p>Linux compatibility layer input validation error</p>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<div class="sect2">
<hr />
<h3 class="sect2"><a id="kernel" name="kernel">2.2 Kernel Changes</a></h3>
<p>The FreeBSD Jail subsystem now supports 	mounting <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=devfs&sektion=5&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">devfs</span>(5)</span></a>, <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=nullfs&sektion=5&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">nullfs</span>(5)</span></a>, and
ZFS filesystem 	inside a jail. New <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=jail&sektion=8&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">jail</span>(8)</span></a>
parameters 	<code class="varname">allow.mount.devfs</code>, 	<code
class="varname">allow.mount.nullfs</code>, and 	<code
class="varname">allow.mount.zfs</code> to control the per-jail 	capabilities have
been added. All of them are disabled by 	default.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=232728"
target="_top">r232728</a>]</p>
<p>A new <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=loader&sektion=8&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">loader</span>(8)</span></a>
tunable 	<code class="varname">kern.eventtimer.activetick</code> has been added.
	This tunable specifies whether each hardclock tick should 	be run on every
active CPU or only one. By setting it to 	<tt class="literal">0</tt>, the total
number of interrupts can be reduced 	on SMP machines. The default value is 	<tt
class="literal">1</tt>.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=234167"
target="_top">r234167</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=posix_fadvise&sektion=2&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">posix_fadvise</span>(2)</span></a>
system call 	has been implemented. This is a function similar to 	<a
href="http://www.FreeBSD.org/cgi/man.cgi?query=madvise&sektion=2&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">madvise</span>(2)</span></a>
except that it operates on a file descriptor 	instead of a memory region.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=229723"
target="_top">r229723</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=filemon&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">filemon</span>(4)</span></a>
pseudo-device has 	been added. This allows a process to collect file operations
	data of its children.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=237795"
target="_top">r237795</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=sysctl&sektion=8&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">sysctl</span>(8)</span></a>
variable 	<code class="varname">kern.stop_scheduler_on_panic</code> is now set to
	<tt class="literal">1</tt> by default.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=235413"
target="_top">r235413</a>]</p>
<p>[powerpc] FreeBSD/powerpc64 now 	supports kernel profiling by using <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=kgmon&sektion=8&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">kgmon</span>(8)</span></a>.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=231907"
target="_top">r231907</a>]</p>
<p>The FreeBSD Linux ABI compatibility layer 	now supports the <code
class="function">linux_fadvise64()</code> and 	<code
class="function">linux_fadvise64_64()</code> system calls.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=231145"
target="_top">r231145</a>]</p>
<p>The default value of the <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=loader&sektion=8&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">loader</span>(8)</span></a>
	tunable <code class="varname">hw.memtest.tests</code> is now 	automatically set
to <tt class="literal">0</tt> when FreeBSD is running 	on a virtual machine.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=230266"
target="_top">r230266</a>]</p>
<p>A new <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=loader&sektion=8&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">loader</span>(8)</span></a>
tunable 	<code class="varname">kern.msgbuf_show_timestamp</code> has been added.
	When it is enabled, a timestamp is added to each line of the 	system message
buffer. The default value is 	<tt class="literal">0</tt> (disabled).[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=234075"
target="_top">r234075</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=null&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">null</span>(4)</span></a> and <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=zero&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">zero</span>(4)</span></a> pseudo
	device driver now supports non-blocking mode via the <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=fcntl&sektion=2&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">fcntl</span>(2)</span></a>
	system call.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=230320"
target="_top">r230320</a>]</p>
<p>The FreeBSD <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=sched_ule&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">sched_ule</span>(4)</span></a>
scheduler has 	been improved for CPU load balancing on SMT (Simultaneous
	MultiThreading) CPUs. It gives a 10-15% performance improvement 	when the number
of threads is lesser than the number of 	logical CPUs.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=233599"
target="_top">r233599</a>]</p>
<p>[sparc64] The <tt class="literal">PREEMPTION</tt> kernel option is 	now enabled in
the <tt class="filename">GENERIC</tt> kernel.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=235992"
target="_top">r235992</a>]</p>
<p>A new <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=sysctl&sektion=8&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">sysctl</span>(8)</span></a>
variable 	<code class="varname">security.bsd.unprivileged_idprio</code> has been
	added. This variable controls whether non-root users can set 	an idle priority
or not. This is disabled by default.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=230039"
target="_top">r230039</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=splash&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">splash</span>(4)</span></a> screen
interface now 	supports ASCII art in <b class="application">TheDraw</b>
	format.[<a href="http://svn.freebsd.org/viewvc/base?view=revision&revision=228445"
target="_top">r228445</a>]</p>
<div class="sect3">
<hr />
<h4 class="sect3"><a id="boot" name="boot">2.2.1 Boot Loader Changes</a></h4>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=boot0cfg&sektion=8&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">boot0cfg</span>(8)</span></a>
utility now 	 supports configuration of PXE boot via the 	 <tt
class="filename">boot0</tt> boot block temporarily on the 	 next boot. The slice
number <tt class="literal">6</tt> or a 	 keyword <tt class="literal">PXE</tt> can be
specified to enable 	 PXE boot using the <code class="option">-s</code> option.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=230065"
target="_top">r230065</a>]</p>
<p>The FreeBSD <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=boot&sektion=8&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">boot</span>(8)</span></a> block
now 	 supports <tt class="filename">/boot/config</tt> in addition to 	 <tt
class="filename">/boot.config</tt> as the boot block 	 parameter file. When both of
them exist, the former will be 	 used.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=231287"
target="_top">r231287</a>]</p>
<p>The <tt class="filename">gptboot</tt> boot 	 block now reads the backup GPT header
from the last LBA only 	 when the primary GPT header and tables are invalid. This
	 mitigates interoperability issues with some <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=geom&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">geom</span>(4)</span></a> 	
providers like <tt class="literal">MIRROR</tt> which use the last 	 LBA for the
metadata.[<a href="http://svn.freebsd.org/viewvc/base?view=revision&revision=234693"
target="_top">r234693</a>]</p>
<p>The <tt class="filename">zfsboot</tt> boot 	 block and <tt
class="filename">zfsloader</tt> support 	 filesystems within a ZFS storage pool. In
	 <tt class="filename">zfsloader</tt>, the ZFS device name format is now 	 <tt
class="literal">zfs:<tt class="replaceable"><i>pool</i></tt>/<tt
class="replaceable"><i>fs</i></tt></tt> 	 and the fully qualified file path format is
	 <tt class="literal">zfs:<tt class="replaceable"><i>pool</i></tt>/<tt
class="replaceable"><i>fs</i></tt>:/<tt
class="replaceable"><i>path/to/file</i></tt></tt>. 	 The <tt
class="filename">zfsboot</tt> boot block accepts the 	 kernel/loader name in the
format 	 <tt class="literal"><tt class="replaceable"><i>pool</i></tt>:<tt
class="replaceable"><i>fs</i></tt>:<tt class="replaceable"><i>path/to/file</i></tt></tt>
	 or, as before, 	 <tt class="literal"><tt
class="replaceable"><i>pool</i></tt>:<tt
class="replaceable"><i>path/to/file</i></tt></tt>. 	 In the latter case a default
filesystem is used (the pool 	 root or a filesystem with the <tt
class="literal">bootfs</tt> property). The 	 <tt class="filename">zfsboot</tt> boot
block passes 	 the GUIDs of the selected 	 storage pool and dataset to <tt
class="filename">zfsloader</tt> 	 to be used as its defaults.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=237766"
target="_top">r237766</a>]</p>
<p>[sparc64] FreeBSD/sparc64 now 	 supports booting from ZFS via the <tt
class="filename">zfsboot</tt> boot block and 	 <tt class="filename">zfsloader</tt>.
For example, the following commands create a 	 mirrored storage pool <tt
class="literal">rpool</tt> consisting of 	 <tt class="literal">da0a</tt> and <tt
class="literal">da0b</tt> and 	 configure the storage pool as the root filesystem:[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=236076"
target="_top">r236076</a>]</p>
<pre class="screen">
<samp class="prompt">#</samp> gpart create -s vtoc8 da0
<samp class="prompt">#</samp> gpart add -t freebsd-zfs -s 10g da0
<samp class="prompt">#</samp> gpart add -t freebsd-swap -s 10g da0
<samp class="prompt">#</samp> gpart add -t freebsd-zfs -s 10g da0
<samp class="prompt">#</samp> zpool create rpool mirror da0a da0b
<samp class="prompt">#</samp> zpool set bootfs=rpool rpool
<samp class="prompt">#</samp> zpool export rpool
<samp class="prompt">#</samp> gpart bootcode -p /boot/zfsboot da0
<samp class="prompt">#</samp> sysctl kern.geom.debugflags=0x10
<samp
class="prompt">#</samp> dd if=/boot/zfsloader of=/dev/da0a bs=512 oseek=1024 conv=notrunc
<samp
class="prompt">#</samp> dd if=/boot/zfsloader of=/dev/da0b bs=512 oseek=1024 conv=notrunc
<samp class="prompt">#</samp> zpool import rpool
<samp class="prompt">#</samp> cp -p /boot/zfs/zpool.cache /rpool/boot/zfs/zpool.cache
<samp class="prompt">#</samp> zfs set mountpoint=/ rpool
</pre>
</div>
<div class="sect3">
<hr />
<h4 class="sect3"><a id="proc" name="proc">2.2.2 Hardware Support</a></h4>
<p>[powerpc] The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=abtn&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">abtn</span>(4)</span></a> 	
driver, which supports ADB keyboards found on Apple laptops, 	 has been added.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=230751"
target="_top">r230751</a>]</p>
<p>[amd64] A workaround for Erratum 	 721 for AMD Processor Family 10h and 12h has
been 	 implemented. Under a highly specific and detailed set of 	 internal timing
conditions, the processor may incorrectly 	 update the stack pointer after a long
series of push and/or 	 near-call instructions, or a long series of pop and/or 	
near-return instructions.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=233798"
target="_top">r233798</a>]</p>
<p>[powerpc] The atibl(4) driver, 	 which supports backlight control of ATI graphics
chips on 	 PowerBooks and iBooks, has been added.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=232677"
target="_top">r232677</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=acpi_wmi&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">acpi_wmi</span>(4)</span></a>
driver now 	 supports attaching multiple instances.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=229858"
target="_top">r229858</a>]</p>
<p>[powerpc] The adm1030(4) driver 	 for G4 MDD fans now shows its PWM parameter in
the device's 	 <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=sysctl&sektion=8&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">sysctl</span>(8)</span></a>
variable.[<a href="http://svn.freebsd.org/viewvc/base?view=revision&revision=230290"
target="_top">r230290</a>]</p>
<p>[arm] The cesa(4) driver for the 	 Marvell crypto engine and security accelerator
has been 	 added.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=234559"
target="_top">r234559</a>]</p>
<p>[powerpc] The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=hwpmc&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">hwpmc</span>(4)</span></a> 	
driver now supports PowerPC G4+ (MPC745x/MPC744x).[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=230305"
target="_top">r230305</a>]</p>
<p>[amd64, i386] The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=hwpmc&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">hwpmc</span>(4)</span></a> 	
driver now supports the Intel Sandy Bridge 	 microarchitecture.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=234046"
target="_top">r234046</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=hwpmc&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">hwpmc</span>(4)</span></a> driver
now supports 	 software events. Simultaneous usage of software PMC and 	 hardware
PMC is allowed.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=236238"
target="_top">r236238</a>]</p>
<p>The pcf8563(4) driver for the NXP 	 (Philips) PCF8563 RTC has been added.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=236078"
target="_top">r236078</a>]</p>
<p>[powerpc] FreeBSD/powerpc now 	 supports the PWM-controlled fans found on the
PowerMac SMU (System 	 Management Unit).[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=233471"
target="_top">r233471</a>]</p>
<p>[arm] FreeBSD/arm now supports the Atmel 	 SAM9XE family of microcontrollers.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=236081"
target="_top">r236081</a>]</p>
<p>The following <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=sysctl&sektion=8&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">sysctl</span>(8)</span></a> 	
variables have been added: <code class="varname">kern.proc.env</code> 	 for
environment strings, <code class="varname">kern.proc.auxv</code> 	 for ELF auxiliary
vectors from a process's stack, 	 <code class="varname">kern.proc.groups</code> for
process groups, 	 <code class="varname">kern.proc.rlimit</code> for process resource
	 limits, <code class="varname">kern.proc.ps_strings</code> for the 	 ps_strings
location, and <code class="varname">kern.proc.osrel</code> for 	 the osreldate of the
process's binary.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=230754"
target="_top">r230754</a>, <a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=233950"
target="_top">r233950</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=usb&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">usb</span>(4)</span></a> driver
now 	 handles suspend and resume correctly with no need to reload 	 the kernel
module.[<a href="http://svn.freebsd.org/viewvc/base?view=revision&revision=229100"
target="_top">r229100</a>, <a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=229369"
target="_top">r229369</a>]</p>
<p>A bug in the <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=xhci&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">xhci</span>(4)</span></a> (USB
3.0) 	 driver has been fixed. It did not work with USB 3.0 	 hubs.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=230302"
target="_top">r230302</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=viawd&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">viawd</span>(4)</span></a> driver,
which 	 supports the watchdog timer found in VIA south bridges (VT8251, 	 CX700,
VX800, VX855, VX900), has been added.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=229927"
target="_top">r229927</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=wbwd&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">wbwd</span>(4)</span></a> driver,
which 	 supports the watchdog timer found in Winbond Super I/O chips, 	 has been
added.[<a href="http://svn.freebsd.org/viewvc/base?view=revision&revision=235926"
target="_top">r235926</a>]</p>
<div class="sect4">
<hr />
<h5 class="sect4"><a id="mm" name="mm">2.2.2.1 Multimedia Support</a></h5>
<p>The drm2(4) Intel GPU driver, 	 which supports GEM and KMS and works with new
generations of 	 GPUs such as IronLake, SandyBridge, and IvyBridge, has been 	
added. The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=agp&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">agp</span>(4)</span></a> driver
now supports SandyBridge 	 and IvyBridge CPU northbridges.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=236926"
target="_top">r236926</a>, <a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=236927"
target="_top">r236927</a>, <a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=239965"
target="_top">r239965</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=snd_hda&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">snd_hda</span>(4)</span></a>
driver has been 	 updated. It now supports and provides HDMI, new volume control,
	 automatic recording source selection, runtime 	 reconfiguration, more then 4
PCM devices on a controller, 	 multichannel recording, additional playback/record
	 streams, higher bandwidth, and more informative device 	 names.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=232798"
target="_top">r232798</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=snd_hdspe&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">snd_hdspe</span>(4)</span></a>
driver has 	 been added. This supports RME HDSPe AIO and RayDAT sound 	 cards.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=233165"
target="_top">r233165</a>]</p>
<p>GPL-licensed 	 headers in the <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=snd_emu10kx&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">snd_emu10kx</span>(4)</span></a>,
<a
href="http://www.FreeBSD.org/cgi/man.cgi?query=snd_maestro3&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">snd_maestro3</span>(4)</span></a>,
	 and <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=snd_csa&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">snd_csa</span>(4)</span></a>
drivers have been replaced with 	 BSD-licensed one. These drivers are now fully 	
BSD-licensed and included in the <tt class="filename">GENERIC</tt> 	 kernel on
FreeBSD/amd64 and FreeBSD/i386.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=230964"
target="_top">r230964</a>, <a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=230985"
target="_top">r230985</a>, <a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=231047"
target="_top">r231047</a>, <a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=235769"
target="_top">r235769</a>]</p>
</div>
<div class="sect4">
<hr />
<h5 class="sect4"><a id="net-if" name="net-if">2.2.2.2 Network Interface Support</a></h5>
<p>A bug in the <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=ae&sektion=4&manpath=FreeBSD+9.1-RELEASE"><span
class="citerefentry"><span class="refentrytitle">ae</span>(4)</span></a> driver which
could 	 prevent it from working under certain conditions has been 	 fixed.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=229520"
target="_top">r229520</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=axe&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">axe</span>(4)</span></a> driver
now supports 	 TX/RX checksum offloading support for the ASIX AX88772B 	
controller.[<a href="http://svn.freebsd.org/viewvc/base?view=revision&revision=229106"
target="_top">r229106</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=bce&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">bce</span>(4)</span></a> driver
has been improved:</p>
<ul>
<li>
<p>Unnecessary link up/down has 		been eliminated.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=229864"
target="_top">r229864</a>]</p>
</li>
<li>
<p>A bug has been fixed which could 		prevent IPMI from working when the
interface was 		marked as down.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=236216"
target="_top">r236216</a>]</p>
</li>
<li>
<p>It now supports remote PHYs, 		which allow the controller to perform MDIO type
accesses 		to a remote transceiver by using message pages defined
		through MRBE (MultiRate Backplane Ethernet). This is 		found on
machines such as the Dell PowerEdge M610 		Blade.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=235818"
target="_top">r235818</a>]</p>
</li>
</ul>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=bge&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">bge</span>(4)</span></a> and
brgphy(4) drivers have been 	 improved:</p>
<ul>
<li>
<p>A bug which could prevent 		DMA functionality from working correctly has been
		fixed.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=229350"
target="_top">r229350</a>]</p>
</li>
<li>
<p>It now works with a PCI-X BCM 5704 		controller that is connected to AMD-8131
PCI-X bridge.[<a href="http://svn.freebsd.org/viewvc/base?view=revision&revision=233495"
target="_top">r233495</a>]</p>
</li>
<li>
<p>It now supports 		the BCM 5720 and BCM 5720C PHY, and the BCM 57780 1000BASE-T
		media interface.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=229357"
target="_top">r229357</a>, <a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=229867"
target="_top">r229867</a>, <a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=232134"
target="_top">r232134</a>]</p>
</li>
<li>
<p>It now supports a <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=loader&sektion=8&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">loader</span>(8)</span></a>
		tunable 		<code class="varname">dev.bge.<tt
class="replaceable"><i>N</i></tt>.msi</code> 		to control the use of MSI. The
default value is 		<tt class="literal">1</tt> (enabled).[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=231734"
target="_top">r231734</a>]</p>
</li>
</ul>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=cxgbe&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">cxgbe</span>(4)</span></a> and
	 <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=cxgb&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">cxgb</span>(4)</span></a> drivers
have been updated to firmware version 	 1.5.2.0. They now support device
configuration via a 	 plain text configuration file, IPv6 hardware checksumming,
	 IPv6 TSO and LRO, a <tt class="literal">loadfw</tt> command in the 	
cxgbetool(8) utility which allows installing a firmware to 	 the card, and <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=sysctl&sektion=8&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">sysctl</span>(8)</span></a>
variables under 	 <code class="varname">dev.t4nex.<tt
class="replaceable"><i>N</i></tt>.misc</code> 	 for various information.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=231093"
target="_top">r231093</a>, <a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=237925"
target="_top">r237925</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=dc&sektion=4&manpath=FreeBSD+9.1-RELEASE"><span
class="citerefentry"><span class="refentrytitle">dc</span>(4)</span></a> driver now
supports 	 NVIDIA (ULi) M5261/M5263 PCI FastEthernet controllers, which 	 are
found on the ULi M1563 South Bridge and M1689 Bridge.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=229334"
target="_top">r229334</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=et&sektion=4&manpath=FreeBSD+9.1-RELEASE"><span
class="citerefentry"><span class="refentrytitle">et</span>(4)</span></a> driver 	
now works on all platforms. A bug which could prevent 	 <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=altq&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">altq</span>(4)</span></a> support
from working has been fixed. A new 	 <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=sysctl&sektion=8&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">sysctl</span>(8)</span></a>
variable under 	 <code class="varname">dev.et.<tt
class="replaceable"><i>N</i></tt>.stats</code> 	 has been added for hardware MAC
statistics.[<a href="http://svn.freebsd.org/viewvc/base?view=revision&revision=229711"
target="_top">r229711</a>, <a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=229717"
target="_top">r229717</a>, <a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=229720"
target="_top">r229720</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=igb&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">igb</span>(4)</span></a> driver
has been 	 updated to version 2.3.4. It now supports newer i210/i211 	
devices.[<a href="http://svn.freebsd.org/viewvc/base?view=revision&revision=238262"
target="_top">r238262</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=iwn&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">iwn</span>(4)</span></a> driver
now 	 supports Intel Centrino Wireless-N + WiMAX 6150 and 	 Wireless-N 100/130
series.[<a href="http://svn.freebsd.org/viewvc/base?view=revision&revision=233838"
target="_top">r233838</a>, <a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=235843"
target="_top">r235843</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=miibus&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">miibus</span>(4)</span></a> bus
driver now 	 supports device hints 	 <code class="varname">hint.miibus.<tt
class="replaceable"><i>N</i></tt>.phymask</code> 	 for PHY addresses being probed.
This is useful to manually 	 probe PHYs which do not implement basic the register set
of 	 IEEE 802.3. Also, the <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=miibus&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">miibus</span>(4)</span></a> driver
has been 	 changed to a hinted bus, allowing to add child devices via 	 hints and
to set their attach arguments in addition to 	 automatically-probed PHYs.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=230709"
target="_top">r230709</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=msk&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">msk</span>(4)</span></a> driver
now uses 64-bit 	 DMA addressing on 64-bit platforms.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=229524"
target="_top">r229524</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=mxge&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">mxge</span>(4)</span></a> driver
has been 	 updated to firmware version 1.4.55 from Myricom.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=236413"
target="_top">r236413</a>]</p>
<p>The nsphyter(4) driver now supports 	 National DP83849.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=232137"
target="_top">r232137</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=oce&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">oce</span>(4)</span></a> driver,
which 	 supports Emulex OneConnect 10Gbit Ethernet cards, has been 	 added.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=231663"
target="_top">r231663</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=ral&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">ral</span>(4)</span></a> driver
now supports 	 Ralink RT2800 and RT3000 chipsets.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=236004"
target="_top">r236004</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=re&sektion=4&manpath=FreeBSD+9.1-RELEASE"><span
class="citerefentry"><span class="refentrytitle">re</span>(4)</span></a> driver now
	 supports the RTL8411 PCIe Gigabit Ethernet controller. A bug 	 which could
prevent WoL (Wake-on-LAN) from working on 	 RTL8168E has been fixed.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=229529"
target="_top">r229529</a>, <a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=231731"
target="_top">r231731</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=runfw&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">runfw</span>(4)</span></a>
firmware has been 	 updated to version 0.236.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=234028"
target="_top">r234028</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=sfxge&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">sfxge</span>(4)</span></a> driver,
which 	 supports 10Gb Ethernet adapters based on Solarflare SFC9000 	 family
controllers, has been added.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=228100"
target="_top">r228100</a>]</p>
<p>The smcphy(4) driver now supports the 	 Seeq Technology 80220 PHY. This is found
on Adaptec 	 AIC-6915 Starfire Ethernet controllers supported by the 	 <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=sf&sektion=4&manpath=FreeBSD+9.1-RELEASE"><span
class="citerefentry"><span class="refentrytitle">sf</span>(4)</span></a> driver.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=233485"
target="_top">r233485</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=ti&sektion=4&manpath=FreeBSD+9.1-RELEASE"><span
class="citerefentry"><span class="refentrytitle">ti</span>(4)</span></a> driver now
	 supports the <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=altq&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">altq</span>(4)</span></a>
framework, reporting link-state 	 changes, and <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=sysctl&sektion=8&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">sysctl</span>(8)</span></a>
variables under 	 <code class="varname">dev.ti.<tt
class="replaceable"><i>N</i></tt></code> for 	 interrupt moderation parameters.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=229417"
target="_top">r229417</a>, <a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=229438"
target="_top">r229438</a>]</p>
<p>A bug in the <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=ti&sektion=4&manpath=FreeBSD+9.1-RELEASE"><span
class="citerefentry"><span class="refentrytitle">ti</span>(4)</span></a> driver which
could 	 prevent it from working correctly with the <tt class="literal">PAE</tt> 	
kernel option has been fixed.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=229441"
target="_top">r229441</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=vge&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">vge</span>(4)</span></a> driver
has been 	 updated to improve its link establishment and link-state 	
detection.[<a href="http://svn.freebsd.org/viewvc/base?view=revision&revision=229540"
target="_top">r229540</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=vr&sektion=4&manpath=FreeBSD+9.1-RELEASE"><span
class="citerefentry"><span class="refentrytitle">vr</span>(4)</span></a> driver now
enables 	 flow control capability in the PHY drivers.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=229641"
target="_top">r229641</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=xnb&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">xnb</span>(4)</span></a> Xen
Paravirtualized 	 Backend Ethernet Driver (netback) has been updated. This is 	
attached via the newbus framework and works properly in both 	 HVM and PVM mode.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=231697"
target="_top">r231697</a>]</p>
</div>
</div>
<div class="sect3">
<hr />
<h4 class="sect3"><a id="net-proto" name="net-proto">2.2.3 Network Protocols</a></h4>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=if_bridge&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">if_bridge</span>(4)</span></a>
pseudo-interface 	 now supports reporting link-state changes depending on the status
	 of the member interfaces.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=236051"
target="_top">r236051</a>]</p>
<p>The <tt class="literal">table</tt> argument 	 in the <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=ipfw&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">ipfw</span>(4)</span></a> packet
filter rule syntax now supports 	 IP address, interface name, port number, and jail
ID. The 	 following syntax is valid:[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=234597"
target="_top">r234597</a>]</p>
<pre class="programlisting">
skipto tablearg ip from any to any via table(42) in
</pre>
<p>The FreeBSD <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=ip6&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">ip6</span>(4)</span></a> protocol
stack has been improved in terms 	 of its performance. Benchmarking can be found at
<a href="http://people.freebsd.org/~bz/bench/"
target="_top">http://people.freebsd.org/~bz/bench/</a>.</p>
<p>The FreeBSD <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=ip6&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">ip6</span>(4)</span></a> protocol
stack now 	 supports multiple FIBs.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=232292"
target="_top">r232292</a>]</p>
<p>An IPv6 default route configured via 	 Router Advertisement messages is now
reinstalled correctly 	 when the default route is manually removed and then another
	 RA message is received for the same route.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=230604"
target="_top">r230604</a>]</p>
<p>A bug which could return an incorrect 	 value for the <tt
class="literal">IPV6_MULTICASE_HOPS</tt> socket option 	 has been fixed.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=227885"
target="_top">r227885</a>]</p>
<p>A new <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=sysctl&sektion=3&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">sysctl</span>(3)</span></a> name
	 <tt class="literal">NET_RT_IFLISTL</tt> has been added. This 	 queries the
address list and works on extended and 	 extensible structures <code
class="varname">if_msghdrl</code> and 	 <code class="varname">ifa_msghdrl</code>
without breaking the 	 ABI.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=231768"
target="_top">r231768</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=netmap&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">netmap</span>(4)</span></a> fast
packet 	 I/O framework has been added. The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=em&sektion=4&manpath=FreeBSD+9.1-RELEASE"><span
class="citerefentry"><span class="refentrytitle">em</span>(4)</span></a>, lem(4), 	
<a
href="http://www.FreeBSD.org/cgi/man.cgi?query=igb&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">igb</span>(4)</span></a>, and <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=re&sektion=4&manpath=FreeBSD+9.1-RELEASE"><span
class="citerefentry"><span class="refentrytitle">re</span>(4)</span></a> drivers now
support this 	 framework. The technical details can be found at <a
href="http://info.iet.unipi.it/~luigi/netmap/"
target="_top">http://info.iet.unipi.it/~luigi/netmap/</a>.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=231650"
target="_top">r231650</a>, <a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=235527"
target="_top">r235527</a>]</p>
<p>The FreeBSD <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=sctp&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">sctp</span>(4)</span></a> protocol
stack now 	 supports a new <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=sysctl&sektion=8&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">sysctl</span>(8)</span></a>
variable 	 <code class="varname">net.inet.sctp.blackhole</code>. If this is set 	
to <tt class="literal">1</tt>, no <tt class="literal">ABORT</tt> is sent 	 back in
response to an incoming <tt class="literal">INIT</tt>. If 	 this is set to <tt
class="literal">2</tt>, no 	 <tt class="literal">ABORT</tt> is sent back in response
to an 	 out-of-the-blue packet. If set to <tt class="literal">0</tt> 	 (the
default), <tt class="literal">ABORT</tt>s are sent.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=231045"
target="_top">r231045</a>]</p>
<p>A bug which could cause a system panic 	 when <tt
class="literal">SCTP_RECVINFO</tt> or 	 <tt class="literal">SCTP_NXTINFO</tt> is
specified to the 	 <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=getsockopt&sektion=2&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">getsockopt</span>(2)</span></a>
system call has been fixed.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=231049"
target="_top">r231049</a>]</p>
<p>The FreeBSD <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=sctp&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">sctp</span>(4)</span></a> protocol
stack now 	 supports the <tt class="literal">SCTP_REMOTE_UDP_ENCAPS_PORT</tt> 	
socket option.[<a href="http://svn.freebsd.org/viewvc/base?view=revision&revision=231070"
target="_top">r231070</a>, <a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=231140"
target="_top">r231140</a>]</p>
<p>The <tt class="literal">SO_PROTOCOL</tt> and 	 <tt
class="literal">SO_PROTOTYPE</tt> socket options have been 	 added. These return the
socket protocol number.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=232805"
target="_top">r232805</a>]</p>
<p>The <tt class="literal">TCP_KEEPINIT</tt>, 	 <tt
class="literal">TCP_KEEPIDLE</tt>, 	 <tt class="literal">TCP_KEEPINTVL</tt>, and
	 <tt class="literal">TCP_KEEPCNT</tt> socket options have been 	 added. These
allow controlling initial timeout, idle time, 	 idle resend interval, and idle send
count on a per-socket 	 basis.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=232945"
target="_top">r232945</a>]</p>
</div>
<div class="sect3">
<hr />
<h4 class="sect3"><a id="disks" name="disks">2.2.4 Disks and Storage</a></h4>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=arcmsr&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">arcmsr</span>(4)</span></a> driver
has been 	 updated to version 1.20.00.25.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=240758"
target="_top">r240758</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=ahci&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">ahci</span>(4)</span></a> driver
now supports a 	 new <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=loader&sektion=8&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">loader</span>(8)</span></a>
tunable <code class="varname">hw.ahci.force</code>. 	 This controls whether it
attempts to attach an AHCI-capable 	 device even if it is configured to use legacy
emulation. 	 This is enabled by default.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=229291"
target="_top">r229291</a>]</p>
<p>The new <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=cam&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">cam</span>(4)</span></a>-based <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=ata&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">ata</span>(4)</span></a> 	
driver now supports old <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=loader&sektion=8&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">loader</span>(8)</span></a>
tunables 	 <code class="varname">hw.ata.ata_dma</code> and 	 <code
class="varname">hw.ata.atapi_dma</code>, for backward 	 compatibility.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=231251"
target="_top">r231251</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=cam&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">cam</span>(4)</span></a> driver
now supports 	 SEMB (SATA Enclosure Management Bridge) devices, which are 	
equivalent to the SCSI SES/SAF-TE devices.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=236778"
target="_top">r236778</a>]</p>
<p>A new <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=sysctl&sektion=8&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">sysctl</span>(8)</span></a>
variable 	 <code class="varname">kern.cam.pmp.hide_special</code> has been added.
	 This controls whether special PMP ports such as PMP (Port 	 MultiPlier)
configuration or SEMB (SATA Enclosure Management 	 Bridge) will be exposed or hidden.
The default value is 	 <tt class="literal">1</tt> (hidden).[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=236765"
target="_top">r236765</a>]</p>
<p>The ctl(4) driver, which supports 	 <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=cam&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">cam</span>(4)</span></a> Target
Layer and <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=ctladm&sektion=8&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">ctladm</span>(8)</span></a>, a
userland 	 control utility, have been added. ctl(4) is a disk and 	 processor
device emulation subsystem supporting tagged 	 queuing, SCSI task attribute, SCSI
implicit command 	 ordering, full task management, multiple ports, multiple 	
simultaneous initiators, multiple simultaneous backing 	 stores, mode sense/select,
and error injection 	 support.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=231772"
target="_top">r231772</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=cd&sektion=4&manpath=FreeBSD+9.1-RELEASE"><span
class="citerefentry"><span class="refentrytitle">cd</span>(4)</span></a> driver now
supports 	 Audio CDs in the same way as <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=acd&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">acd</span>(4)</span></a> did. It
will 	 report a 2352-byte sector size to the <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=geom&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">geom</span>(4)</span></a>
subsystem and use 	 the <tt class="literal">READ CD</tt> command for reading the
data. 	 This fixes an interoperability issue with <a
href="http://svnweb.FreeBSD.org/ports/head/multimedia/vlc/pkg-descr?revision=HEAD"><tt
class="filename">multimedia/vlc</tt></a>.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=230014"
target="_top">r230014</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=da&sektion=4&manpath=FreeBSD+9.1-RELEASE"><span
class="citerefentry"><span class="refentrytitle">da</span>(4)</span></a> driver now
supports 	 <tt class="literal">BIO_DELETE</tt>. To select the method, a new 	 <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=sysctl&sektion=8&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">sysctl</span>(8)</span></a>
variable 	 <code class="varname">kern.cam.da.<tt
class="replaceable"><i>N</i></tt>.delete_method</code> 	 has been added for each
device instance. The following 	 values are supported:[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=236677"
target="_top">r236677</a>]</p>
<div class="informaltable"><a id="AEN632" name="AEN632"></a>
<table border="0" frame="void" width="100%" class="CALSTABLE">
<col />
<col />
<thead>
<tr>
<th>Value</th>
<th>Method</th>
</tr>
</thead>
<tbody>
<tr>
<td>NONE</td>
<td>no provisioning support reported by the device</td>
</tr>
<tr>
<td>DISABLE</td>
<td>provisioning support was disabled because of errors</td>
</tr>
<tr>
<td>ZERO</td>
<td>WRITE SAME (10) command to write zeroes</td>
</tr>
<tr>
<td>WS10</td>
<td>WRITE SAME (10) command with UNMAP bit set</td>
</tr>
<tr>
<td>WS16</td>
<td>use WRITE SAME (16) command with UNMAP bit set</td>
</tr>
<tr>
<td>UNMAP</td>
<td>use UNMAP command (equivalent of the ATA DSM TRIM command)</td>
</tr>
</tbody>
</table>
</div>
<p>When it was <tt class="literal">NONE</tt>, the device did not 	 report logical
block provisioning support via respective 	 VPD pages. One can set a specific method
for testing and it 	 will be disabled automatically when not supported on the 	
device.</p>
<p>The <b class="application">MIRROR</b> 	 <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=geom&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">geom</span>(4)</span></a> class
now supports 	 <tt class="literal">BIO_DELETE</tt>. This means the 	 <tt
class="literal">TRIM</tt> command will be issued on 	 supported devices when deleting
data.[<a href="http://svn.freebsd.org/viewvc/base?view=revision&revision=238500"
target="_top">r238500</a>]</p>
<p>The 	 <b class="application">MULTIPATH</b> <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=geom&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">geom</span>(4)</span></a> class
has 	 been updated. It now supports Active/Active mode, 	 Active/Read mode as
hybrid of Active/Active and 	 Active/Passive, keeping a failed path without removing
the 	 geom provider, manual configuration without on-disk 	 metadata, and <tt
class="command">add</tt>, 	 <tt class="command">remove</tt>, <tt
class="command">fail</tt>, 	 <tt class="command">restore</tt>, <tt
class="command">configure</tt> 	 subcommands in the <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=gmultipath&sektion=8&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">gmultipath</span>(8)</span></a>
utility to manage the 	 configured paths.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=229303"
target="_top">r229303</a>, <a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=234916"
target="_top">r234916</a>]</p>
<p>The 	 <b class="application">PART_LDM</b> <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=geom&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">geom</span>(4)</span></a> class
has 	 been added. This partition scheme has support for Logical Disk 	 Manager,
which is also known as dynamic volumes in Microsoft 	 Windows NT. Note that JBOD,
RAID0, and RAID5 volumes are 	 not supported yet.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=234406"
target="_top">r234406</a>]</p>
<p>The <b class="application">PART_MBR</b> 	 <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=geom&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">geom</span>(4)</span></a> class
now allows a primary or extended Linux 	 swap partition to be used as the system dump
device.[<a href="http://svn.freebsd.org/viewvc/base?view=revision&revision=230763"
target="_top">r230763</a>]</p>
<p>[amd64, i386] The 	 <b class="application">RAID</b> <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=geom&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">geom</span>(4)</span></a> class is
now 	 included in the <tt class="filename">GENERIC</tt> kernel.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=235877"
target="_top">r235877</a>]</p>
<p>The <b class="application">RAID</b> 	 <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=geom&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">geom</span>(4)</span></a> class
now supports disks with over 2TB capacity 	 for the Intel metadata format.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=230244"
target="_top">r230244</a>]</p>
<p>The <b class="application">RAID</b> 	 <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=geom&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">geom</span>(4)</span></a> class
now supports the DDF metadata format, which 	 is defined in the SNIA Common RAID Disk
Data Format 	 Specification v2.0.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=235874"
target="_top">r235874</a>]</p>
<p>The 	 <b class="application">UNCOMPRESS</b> <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=geom&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">geom</span>(4)</span></a> class
and 	 the <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=mkulzma&sektion=8&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">mkulzma</span>(8)</span></a>
utility have been added. This class 	 supports lzma compressed images like the 	
<b class="application">UZIP</b> <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=geom&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">geom</span>(4)</span></a> class
and the 	 <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=mkuzip&sektion=8&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">mkuzip</span>(8)</span></a>
utility.[<a href="http://svn.freebsd.org/viewvc/base?view=revision&revision=235483"
target="_top">r235483</a>]</p>
<p>[amd64, i386] The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=hpt27xx&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">hpt27xx</span>(4)</span></a> 	
driver has been added. This supports HighPoint RocketRAID 	 27xx-based SAS 6Gb/s
HBA.[<a href="http://svn.freebsd.org/viewvc/base?view=revision&revision=229975"
target="_top">r229975</a>]</p>
<p>[amd64, i386] The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=isci&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">isci</span>(4)</span></a> 	
driver, which supports the integrated SAS controller in the 	 Intel C600 (Patsburg)
chipset, has been added.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=231689"
target="_top">r231689</a>]</p>
<p>Bugs in <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=isp&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">isp</span>(4)</span></a> target
mode have 	 been fixed.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=230019"
target="_top">r230019</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=ixgbe&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">ixgbe</span>(4)</span></a> driver
now supports 	 the Intel X540 adapter.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=230775"
target="_top">r230775</a>]</p>
<p>A bug in the <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=mfi&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">mfi</span>(4)</span></a> driver
has been 	 fixed. It could cause some inconsistencies due to missed 	 interrupt
acknowledgements and output the following log 	 message:[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=227533"
target="_top">r227533</a>]</p>
<pre class="screen">
mfi0: COMMAND 0xffffffXXXXXXXXXX TIMEOUT AFTER XX SECONDS
</pre>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=mfi&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">mfi</span>(4)</span></a> driver
now 	 supports single-message MSI, and Drake Skinny and 	 Thunderbolt cards. The
<a
href="http://www.FreeBSD.org/cgi/man.cgi?query=loader&sektion=8&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">loader</span>(8)</span></a>
tunable 	 <code class="varname">hw.mfi.msi</code> has been added and it is 	
enabled by default.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=229611"
target="_top">r229611</a>, <a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=234429"
target="_top">r234429</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=mps&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">mps</span>(4)</span></a> driver
	 has been updated to version 14.00.00.01-fbsd. This now 	 supports Integrated
RAID, WarpDrive controllers, WRITE12 and 	 READ12 for direct I/O, SCSI protection
information (EEDP), 	 Transport Level Retries (TLR) for tape drives, and LSI's 	
userland utility.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=230920"
target="_top">r230920</a>, <a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=231679"
target="_top">r231679</a>, <a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=237876"
target="_top">r237876</a>]</p>
<p>A bug in the <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=mpt&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">mpt</span>(4)</span></a> driver
has 	 been fixed. It could attempt to attach MegaRAID cards which 	 should be
handled by the <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=mfi&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">mfi</span>(4)</span></a>
driver.[<a href="http://svn.freebsd.org/viewvc/base?view=revision&revision=232562"
target="_top">r232562</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=usb&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">usb</span>(4)</span></a> storage
device driver 	 now enables power save mode by default.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=229107"
target="_top">r229107</a>]</p>
</div>
<div class="sect3">
<hr />
<h4 class="sect3"><a id="fs" name="fs">2.2.5 File Systems</a></h4>
<p>The FreeBSD NFS filesystem has been improved:</p>
<ul>
<li>
<p>It now supports a timeout on 	 positive name cache entries on the client side. A
new 	 mount option <code class="varname">nametimeo</code> has been added 	 and
set to <tt class="literal">60</tt> (in seconds) by 	 default.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=233326"
target="_top">r233326</a>]</p>
</li>
<li>
<p>A memory leak when a ZFS volume is 	 exported via the FreeBSD NFS server has been
fixed.[<a href="http://svn.freebsd.org/viewvc/base?view=revision&revision=234740"
target="_top">r234740</a>]</p>
</li>
<li>
<p>A bug has been fixed. When a 	 process writes to an mmap-backed file on an NFS
	 filesystem, flushing changes to the data could fail 	 under some circumstances
such as errors due to 	 permission mismatch, and this failure could not be detected
	 as an error. A new <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=sysctl&sektion=8&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">sysctl</span>(8)</span></a>
variable 	 <code class="varname">vfs.nfs.nfs_keep_dirty_on_error</code> has 	
been added to control the behavior on the client side 	 related to this issue. When
this is set to 	 <tt class="literal">1</tt>, the pages where a write operation 	
failed are kept dirty. The default value is set to 	 <tt class="literal">0</tt>.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=233730"
target="_top">r233730</a>]</p>
</li>
<li>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=nfsv4&sektion=4&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">nfsv4</span>(4)</span></a>
filesystem now 	 supports a <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=sysctl&sektion=8&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">sysctl</span>(8)</span></a>
variable 	 <code class="varname">vfs.nfsd.disable_checkutf8</code>. This 	
disables the check for UTF-8 compliance in 	 filenames. This is disabled by default.
Note that 	 enabling this may help wht some interoperability issues but 	 results
in an NFSv4 server that is not RFC 3530 	 compliant.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=229799"
target="_top">r229799</a>]</p>
</li>
</ul>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=tmpfs&sektion=5&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">tmpfs</span>(5)</span></a>
filesystem is not an 	 experimental implementation anymore.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=234511"
target="_top">r234511</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=tmpfs&sektion=5&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">tmpfs</span>(5)</span></a>
filesystem now 	 supports a <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=sysctl&sektion=8&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">sysctl</span>(8)</span></a>
variable 	 <code class="varname">vfs.tmpfs.memory_reserved</code> to set the amount
	 of required free pages when <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=tmpfs&sektion=5&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">tmpfs</span>(5)</span></a>
attempts to 	 allocate a new node.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=234849"
target="_top">r234849</a>]</p>
<p>FreeBSD's ZFS filesystem has been 	 updated by merging improvements from the
illumos project. The 	 following changes are made:[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=229578"
target="_top">r229578</a>, <a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=232328"
target="_top">r232328</a>]</p>
<ul>
<li>
<p>New properties, <tt class="literal">clones</tt> and 	 <tt
class="literal">written</tt>, have been added.</p>
</li>
<li>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=zfs&sektion=8&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">zfs</span>(8)</span></a> <tt
class="command">send</tt> command 	 now reports an estimated size of the stream.</p>
</li>
<li>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=zfs&sektion=8&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">zfs</span>(8)</span></a> <tt
class="command">destroy</tt> command 	 now reports an estimate of the space which
would be reclaimed, 	 when <code class="option">-n</code> is specified.</p>
</li>
<li>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=zfs&sektion=8&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">zfs</span>(8)</span></a> <tt
class="command">get</tt> command now 	 supports the <code class="option">-t <tt
class="replaceable"><i>type</i></tt></code> 	 flag to specify the data type.</p>
</li>
</ul>
<p>A simple script 	 <tt class="filename">zfsboottest.sh</tt> has been added to the
	 source tree. This checks if the system is configured 	 correctly when using ZFS
as the root filesystem. The script 	 is located at 	 <tt
class="filename">/usr/src/tools/tools/zfsboottest.sh</tt> and 	 it uses the <tt
class="filename">zfsboottest</tt> binary program in the 	 same directory.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=227705"
target="_top">r227705</a>]</p>
<p>The binary program can be built and installed by the 	 following command:</p>
<pre class="screen">
<samp class="prompt">#</samp> cd /usr/src/tools/tools/zfsboottest
<samp class="prompt">#</samp> make
<samp class="prompt">#</samp> make install
</pre>
<p>After that, the following command can be used to check the 	 system. <tt
class="replaceable"><i>poolname</i></tt> is the ZFS 	 storage pool name to boot:</p>
<pre class="screen">
<samp class="prompt">#</samp> sh /usr/src/tools/tools/zfsboottest/zfsboottest.sh <tt
class="replaceable"><i>poolname</i></tt>
</pre>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=sysctl&sektion=8&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">sysctl</span>(8)</span></a>
variable 	 <code class="varname">vfs.zfs.txg.timeout</code> has been changed from
	 read-only to writable.</p>
</div>
</div>
<div class="sect2">
<hr />
<h3 class="sect2"><a id="userland" name="userland">2.3 Userland Changes</a></h3>
<p><a
href="http://www.FreeBSD.org/cgi/man.cgi?query=auth.conf&sektion=5&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">auth.conf</span>(5)</span></a> has
been removed 	because it was deprecated years ago.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=238481"
target="_top">r238481</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=camcontrol&sektion=8&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">camcontrol</span>(8)</span></a>
utility now 	supports a <tt class="command">fwdownload</tt> subcommand for firmware
	update on SCSI devices from Hitachi, HP, IBM, Plextor, 	Quantum, and Seagate.
This subcommand will reprogram the 	firmware on devices connected over an ATA/SATA
transport.[<a href="http://svn.freebsd.org/viewvc/base?view=revision&revision=237740"
target="_top">r237740</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=dhclient&sektion=8&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">dhclient</span>(8)</span></a>
utility now 	supports <tt class="literal">domain-search</tt> (option number 119,
	described in RFC 3397). This allows a DHCP server to publish 	a list of implicit
domain suffixes used during name lookup. 	If this option is specified, a <tt
class="literal">search</tt> 	keyword will be added to 	<tt
class="filename">/etc/resolv.conf</tt>.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=230597"
target="_top">r230597</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=dump&sektion=8&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">dump</span>(8)</span></a> utility
now uses 53 	characters for the device names in 	<tt
class="filename">/etc/dumpdates</tt>. This was previously limited to 32
	characters.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=230047"
target="_top">r230047</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=fetch&sektion=1&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">fetch</span>(1)</span></a> utility
now correctly 	supports a percent-encoded user and password part in a 	URL.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=235253"
target="_top">r235253</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=fdlopen&sektion=3&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">fdlopen</span>(3)</span></a>
function has been 	implemented. This is an interface for <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=rtld&sektion=1&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">rtld</span>(1)</span></a> to load
a 	shared object by file descriptor.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=230410"
target="_top">r230410</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=fopen&sektion=3&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">fopen</span>(3)</span></a>
function now supports 	the <code class="option">x</code> (an exclusive
create-and-open mode) option 	in the ISO/IEC 9899:2011 and C11 standards.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=229845"
target="_top">r229845</a>]</p>
<p>A bug in the <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=gcc&sektion=1&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">gcc</span>(1)</span></a> compiler
has 	been fixed. It could lead to incorrect calculations when 	<code
class="option">-ffast-math</code> is specified.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=234023"
target="_top">r234023</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=hastd&sektion=8&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">hastd</span>(8)</span></a> daemon
now supports specifying the filename of its process ID file in <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=hast.conf&sektion=5&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">hast.conf</span>(5)</span></a>.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=229509"
target="_top">r229509</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=ifconfig&sektion=8&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">ifconfig</span>(8)</span></a>
utility now 	supports a <tt class="literal">vlanhwcsum</tt> parameter to set or
	reset checksum offloading capability on VLANs.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=231221"
target="_top">r231221</a>]</p>
<p>A bug in the <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=ifconfig&sektion=8&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">ifconfig</span>(8)</span></a>
utility 	which could display an error message in a jail with no IPv6 	support has
been fixed.[<a href="http://svn.freebsd.org/viewvc/base?view=revision&revision=238872"
target="_top">r238872</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=ifconfig&sektion=8&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">ifconfig</span>(8)</span></a>
utility now 	supports a <tt class="literal">carp state <tt
class="replaceable"><i>state</i></tt></tt> 	parameter to set 	the state to <tt
class="literal">backup</tt> or 	<tt class="literal">master</tt> forcibly.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=232486"
target="_top">r232486</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=jail&sektion=8&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">jail</span>(8)</span></a> utility
now supports a 	configuration file (<a
href="http://www.FreeBSD.org/cgi/man.cgi?query=jail.conf&sektion=5&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">jail.conf</span>(5)</span></a>)
for complex 	configurations.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=235839"
target="_top">r235839</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=kdump&sektion=1&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">kdump</span>(1)</span></a> utility
now supports a 	<code class="option">-p <tt
class="replaceable"><i>pid</i></tt></code> option to 	accept either a process ID or a
thread ID.[<a href="http://svn.freebsd.org/viewvc/base?view=revision&revision=237789"
target="_top">r237789</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=kenv&sektion=1&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">kenv</span>(1)</span></a> utility
now supports a 	<code class="option">-v</code> flag to display an entry in 	<tt
class="literal">name=value</tt> format, and a <code class="option">-N</code> 	flag to
display only the name.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=236118"
target="_top">r236118</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=kldload&sektion=8&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">kldload</span>(8)</span></a>
utility now supports a 	<code class="option">-n</code> flag to ignore the error
status when the 	specified module is already loaded.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=233560"
target="_top">r233560</a>]</p>
<p><b class="application">libedit</b> has 	been updated to a NetBSD snapshot as of 28
December, 	2009.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=237738"
target="_top">r237738</a>]</p>
<p><a
href="http://www.FreeBSD.org/cgi/man.cgi?query=libmap.conf&sektion=5&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">libmap.conf</span>(5)</span></a>
now supports 	<tt class="literal">include</tt> and <tt
class="literal">includedir</tt> 	directives. They allow to include specified files
for the 	configuration.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=236523"
target="_top">r236523</a>]</p>
<p>Lock handling performance in the 	<b class="application">libthr</b> pthread
library has been 	improved. It now works 10 times faster especially under the
	condition that a mutex is heavily contested.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=234372"
target="_top">r234372</a>]</p>
<p>A new C++ stack has been imported. This 	consists of <b
class="application">libcxxrt</b>, originally 	developed by a FreeBSD developer under
contract by PathScale and 	open sourced by the FreeBSD and NetBSD foundations, and
	<b class="application">libc++</b> from the LLVM project. 	<b
class="application">libcxxrt</b> is a drop-in replacement 	for GNU <b
class="application">libsupc++</b>, which implements 	the C++ runtime support for
features such as run-time type 	information, dynamic casting, thread-safe static
initializer, 	and exceptions. <b class="application">libc++</b> implements 	the
C++11 standard library, and will replace GNU 	<b class="application">libstdc++</b> in
a future release. In 	9.1-RELEASE, <b class="application">libstdc++</b> is still
	installed as standard and now dynamically links against 	<b
class="application">libsupc++</b>. This allows libraries 	linking <b
class="application">libstdc++</b> and 	<b class="application">libc++</b> to both be
used in the same 	program, to aid migration.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=235798"
target="_top">r235798</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=limits&sektion=1&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">limits</span>(1)</span></a>
utility now supports 	a <code class="option">-P <tt
class="replaceable"><i>pid</i></tt></code> option to 	control limits for the
specified process.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=230919"
target="_top">r230919</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=pciconf&sektion=8&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">pciconf</span>(8)</span></a>
utility now supports a 	<code class="option">-e</code> flag to display PCI error
details in 	listing mode. When this is specified, the status of any error 	bits
in the PCI status register and PCI-express device status 	register will be displayed.
It also lists any errors 	indicated by version 1 of PCI-express Advanced Error
Reporting 	(AER).[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=237731"
target="_top">r237731</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=procstat&sektion=1&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">procstat</span>(1)</span></a>
utility now shows the 	superpage mapping flag when displaying process virtual memory
	mappings.[<a href="http://svn.freebsd.org/viewvc/base?view=revision&revision=229710"
target="_top">r229710</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=procstat&sektion=1&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">procstat</span>(1)</span></a>
utility now 	supports an <code class="option">-e</code> flag to display process
	environment variables, an <code class="option">-x</code> flag to display 	ELF
auxiliary vectors, and an <code class="option">-l</code> flag to 	display resource
limits.[<a href="http://svn.freebsd.org/viewvc/base?view=revision&revision=230917"
target="_top">r230917</a>, <a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=230918"
target="_top">r230918</a>]</p>
<p>A bug in the <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=remquo&sektion=3&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">remquo</span>(3)</span></a>
functions 	where the quotient did not always have the correct sign when 	the
remainder was <tt class="literal">0</tt>, and another bug that 	the remainder and
quotient were both off by a bit in certain 	cases involving subnormal remainders,
have been fixed. Note 	that these bugs affected all platforms except amd64 and
	i386.[<a href="http://svn.freebsd.org/viewvc/base?view=revision&revision=234535"
target="_top">r234535</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=rtld&sektion=1&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">rtld</span>(1)</span></a> run-time
linker now 	supports GCC's RELRO (RElocation Read-Only). This prevents the 	GOT
(Global Offset Table) from being overwritten.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=231579"
target="_top">r231579</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=rtld&sektion=1&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">rtld</span>(1)</span></a> run-time
linker now 	supports a GNU hash section (<tt class="literal">DT_GNU_HASH</tt>),
	which is a replacement of optional ELF hash section.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=235396"
target="_top">r235396</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=setbuf&sektion=1&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">setbuf</span>(1)</span></a>
utility and 	<b class="application">libstdbuf</b> library have been added. 	This
controls the default buffering behavior of standard 	stdio streams.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=235139"
target="_top">r235139</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=top&sektion=1&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">top</span>(1)</span></a> utility
now correctly 	supports per-thread I/O statistics of ZFS in the <code
class="option">-m 	io</code> option.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=227702"
target="_top">r227702</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=unzip&sektion=1&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">unzip</span>(1)</span></a> utility
now supports a 	<code class="option">-Z</code> option for zipinfo.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=234330"
target="_top">r234330</a>]</p>
<p>The <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=xlocale&sektion=3&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">xlocale</span>(3)</span></a> API
has been 	implemented. This consists of <tt class="literal">_l</tt>-suffixed
	versions of various standard library functions that use the 	global locale,
making them take an explicit locale parameter 	and allowing thread-safe extended
locale support. Most of 	these APIs are required for IEEE Std 1003.1-2008
(POSIX.1-2008 	or ISO/IEC 9945:2009) compatibility, and are required by 	<b
class="application">libc++</b> and recent versions of 	<b
class="application">GNOME</b>. This implementation also 	supports several extensions
for compatibility with Apple 	<b class="application">Darwin</b>.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=235785"
target="_top">r235785</a>]</p>
<div class="sect3">
<hr />
<h4 class="sect3"><a id="periodic-scripts" name="periodic-scripts">2.3.1 <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=periodic&sektion=8&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry">periodic(8)</span></a> Scripts</a></h4>
<p>A new variable 	 <code class="varname">daily_status_zfs_zpool_list_enable</code>
has 	 been added. It controls whether or not to list all of the ZFS 	 pools in
<tt class="filename">periodic/daily/404.status-zfs</tt>. 	 The default value is <tt
class="literal">YES</tt>.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=231721"
target="_top">r231721</a>]</p>
<p>The default value of 	 <code
class="varname">daily_scrub_zfs_default_threshold</code> used in 	 <tt
class="filename">periodic/daily/800.scrub-zfs</tt> is now set 	 to 35 days.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=229381"
target="_top">r229381</a>]</p>
</div>
<div class="sect3">
<hr />
<h4 class="sect3"><a id="rc-scripts" name="rc-scripts">2.3.2 <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=rc&sektion=8&manpath=FreeBSD+9.1-RELEASE"><span
class="citerefentry">rc(8)</span></a> Scripts</a></h4>
<p>The <tt class="filename">rc.d/nfsd</tt> script 	 now sets the <code
class="varname">vfs.nfsd.server_max_nfsvers</code> 	 <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=sysctl&sektion=8&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">sysctl</span>(8)</span></a>
variable to <tt class="literal">4</tt> when 	 <code
class="varname">nfsv4_server_enable</code> is set to 	 <tt
class="literal">YES</tt>.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=227607"
target="_top">r227607</a>]</p>
<p>A backwards compatibility issue when 	 both <tt
class="literal">ipv6_enable=YES</tt> and 	 <tt
class="literal">ipv6_gateway_enable=YES</tt> are defined at 	 the same time has been
fixed.[<a href="http://svn.freebsd.org/viewvc/base?view=revision&revision=242189"
target="_top">r242189</a>]</p>
</div>
</div>
<div class="sect2">
<hr />
<h3 class="sect2"><a id="contrib" name="contrib">2.4 Contributed Software</a></h3>
<p><b class="application">ISC BIND</b> has 	been updated to version 9.8.3-P4.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=241417"
target="_top">r241417</a>]</p>
<p>The 	<b class="application">compiler-rt</b> library, which provides 	low-level
target-specific interfaces such as functions in 	<b class="application">libgcc</b>,
has been updated to 	revision 147467.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=236018"
target="_top">r236018</a>]</p>
<p><b class="application">file</b> 	(<a
href="http://www.FreeBSD.org/cgi/man.cgi?query=file&sektion=1&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">file</span>(1)</span></a>) has
been updated to version 5.11.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=237983"
target="_top">r237983</a>]</p>
<p>GNU <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=gperf&sektion=1&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">gperf</span>(1)</span></a> has
been updated to 	version 3.0.3 (the latest GPLv2-licensed version).[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=230237"
target="_top">r230237</a>]</p>
<p><b class="application">libarchive</b>, 	<a
href="http://www.FreeBSD.org/cgi/man.cgi?query=bsdtar&sektion=1&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">bsdtar</span>(1)</span></a>, and
<a
href="http://www.FreeBSD.org/cgi/man.cgi?query=cpio&sektion=1&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">cpio</span>(1)</span></a> have
been updated to version 	2.8.5.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=229588"
target="_top">r229588</a>]</p>
<p>The <b class="application">libpcap</b> 	library has been updated to 1.2.1.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=236167"
target="_top">r236167</a>]</p>
<p><b class="application">libstdc++</b> 	has been updated to revision 135556 of the
	<tt class="literal">gcc-4_2-branch</tt> (the last LGPLv2-licensed 	version).[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=229551"
target="_top">r229551</a>]</p>
<p>The <b class="application">LLVM</b> 	compiler infrastructure and <b
class="application">clang</b>, 	a C language family front-end, version 3.1 have been
imported. 	Note that it is not used for building the FreeBSD base system by
	default.[<a href="http://svn.freebsd.org/viewvc/base?view=revision&revision=236144"
target="_top">r236144</a>]</p>
<p>The <tt class="literal">netcat</tt> utility 	has been updated to version 5.1.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=235971"
target="_top">r235971</a>]</p>
<p><b class="application">OpenSSL</b> has 	been updated to version 0.9.8x.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=237998"
target="_top">r237998</a>]</p>
<p>The <b class="application">tcpdump</b> 	(<a
href="http://www.FreeBSD.org/cgi/man.cgi?query=tcpdump&sektion=1&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">tcpdump</span>(1)</span></a>)
utility has been updated to version 4.2.1.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=236192"
target="_top">r236192</a>]</p>
<p>The <b class="application">TENEX C 	shell</b> (<a
href="http://www.FreeBSD.org/cgi/man.cgi?query=tcsh&sektion=1&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span class="refentrytitle">tcsh</span>(1)</span></a>) has
been updated to version 	6.18.01.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=232633"
target="_top">r232633</a>]</p>
<p>The <b class="application">timezone</b> 	database has been updated to the 	<b
class="application">tzdata2012a</b> release.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=233447"
target="_top">r233447</a>]</p>
<p>The <b class="application">zlib</b> 	library has been updated to version 1.2.7.[<a
href="http://svn.freebsd.org/viewvc/base?view=revision&revision=237691"
target="_top">r237691</a>]</p>
</div>
<div class="sect2">
<hr />
<h3 class="sect2"><a id="releng" name="releng">2.5 Release Engineering and
Integration</a></h3>
<p>The supported version of the 	<b class="application">KDE</b> desktop environment
(<a href="http://svnweb.FreeBSD.org/ports/head/x11/kde4/pkg-descr?revision=HEAD"><tt
class="filename">x11/kde4</tt></a>) has been updated to 	4.8.4.</p>
<p>[powerpc] Issues where the FreeBSD 	installation CDROM image caused a panic, and
was not 	recognized on OpenBIOS-based environments like QEMU, have been
	fixed.[<a href="http://svn.freebsd.org/viewvc/base?view=revision&revision=234055"
target="_top">r234055</a>]</p>
</div>
</div>
<div class="sect1">
<hr />
<h2 class="sect1"><a id="upgrade" name="upgrade">3 Upgrading from previous releases of
FreeBSD</a></h2>
<div class="sect2">
<h3 class="sect2"><a id="AEN1113" name="AEN1113">3.1 Upgrading using <a
href="http://www.FreeBSD.org/cgi/man.cgi?query=freebsd-update&sektion=8&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry">freebsd-update(8)</span></a> or a source-based
	procedure</a></h3>
<p>[amd64, i386] Beginning with FreeBSD 6.2-RELEASE, binary 	upgrades between RELEASE
versions (and snapshots of the 	various security branches) are supported using the
	<a
href="http://www.FreeBSD.org/cgi/man.cgi?query=freebsd-update&sektion=8&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span
class="refentrytitle">freebsd-update</span>(8)</span></a> utility. The binary upgrade
procedure 	will update unmodified userland utilities, as well as an 	unmodified
<tt class="filename">GENERIC</tt> kernel, distributed as 	a part of an official
FreeBSD release. The 	<a
href="http://www.FreeBSD.org/cgi/man.cgi?query=freebsd-update&sektion=8&manpath=FreeBSD+9.1-RELEASE">
<span class="citerefentry"><span
class="refentrytitle">freebsd-update</span>(8)</span></a> utility requires that the host
being 	upgraded have Internet connectivity.</p>
<p>Source-based upgrades (those based on recompiling the FreeBSD 	base system from
source code) from previous versions are 	supported using to the instructions in
	<tt class="filename">/usr/src/UPDATING</tt>.</p>
<p>For more specific information about upgrading 	instructions, see <a
href="http://www.FreeBSD.org/releases/9.1R/installation.html"
target="_top">http://www.FreeBSD.org/releases/9.1R/installation.html</a>.</p>
<div class="important">
<blockquote class="important">
<p><b>Important:</b> Upgrading FreeBSD should, of course, only be attempted 	 after
backing up <span class="emphasis"><i class="emphasis">all</i></span> data and 	
configuration files.</p>
</blockquote>
</div>
</div>
<div class="sect2">
<hr />
<h3 class="sect2"><a id="AEN1133" name="AEN1133">3.2 User-visible
incompatibilities</a></h3>
<p>FreeBSD 9.0 and later have several incompatibilities in 	system configuration
which you might want to know before 	upgrading your system. <span class="emphasis"><i
class="emphasis">Please read this section and 	the <a
href="http://www.freebsd.org/releases/9.0R/relnotes-detailed.html#UPGRADE"
target="_top">Upgrading 	Section in 9.0-RELEASE Release Notes</a> carefully before
	submitting a problem report and/or posting a question to the 	FreeBSD mailing
lists.</i></span></p>
</div>
</div>
</div>
<hr />
<p align="center"><small>This file, and other release-related documents, can be
downloaded from <a
href="http://www.FreeBSD.org/releases/">http://www.FreeBSD.org/releases/</a>.</small></p>
<p align="center"><small>For questions about FreeBSD, read the <a
href="http://www.FreeBSD.org/docs.html">documentation</a> before contacting <<a
href="mailto:questions@FreeBSD.org">questions@FreeBSD.org</a>>.</small></p>
<p align="center"><small>All users of FreeBSD 9.1-STABLE should subscribe to the <<a
href="mailto:stable@FreeBSD.org">stable@FreeBSD.org</a>> mailing list.</small></p>
<p align="center"><small>For questions about this documentation, e-mail <<a
href="mailto:doc@FreeBSD.org">doc@FreeBSD.org</a>>.</small></p>
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