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Sponsored by:	The FreeBSD Foundation
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Glen Barber 2015-07-26 19:49:05 +00:00
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<?xml version="1.0" encoding="iso-8859-1"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" /><title>FreeBSD 10.2-RELEASE Release Notes</title><link rel="stylesheet" type="text/css" href="docbook.css" /><link rev="made" href="mailto:doc@FreeBSD.org" /><meta name="generator" content="DocBook XSL Stylesheets V1.78.1" /><meta name="description" content="The release notes for FreeBSD 10.2-RELEASE contain a summary of the changes made to the FreeBSD base system on the 10.2-STABLE development line. This document lists applicable security advisories that were issued since the last release, as well as significant changes to the FreeBSD kernel and userland. Some brief remarks on upgrading are also presented." /><script xmlns="" type="text/javascript" src="/layout/js/google.js"></script></head><body><div class="article"><div xmlns="" class="titlepage"><div><div><h1 xmlns="http://www.w3.org/1999/xhtml" class="title"><a id="idp60896624"></a>FreeBSD 10.2-RELEASE Release Notes</h1></div><div><div xmlns="http://www.w3.org/1999/xhtml" class="author"><h3 class="author"><span class="orgname">The FreeBSD Project</span></h3></div></div><div><p xmlns="http://www.w3.org/1999/xhtml" class="copyright">Copyright © 2015 The FreeBSD Documentation
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" /><title>FreeBSD 10.2-RELEASE Release Notes</title><link rel="stylesheet" type="text/css" href="docbook.css" /><link rev="made" href="mailto:doc@FreeBSD.org" /><meta name="generator" content="DocBook XSL Stylesheets V1.78.1" /><meta name="description" content="The release notes for FreeBSD 10.2-RELEASE contain a summary of the changes made to the FreeBSD base system on the 10.2-STABLE development line. This document lists applicable security advisories that were issued since the last release, as well as significant changes to the FreeBSD kernel and userland. Some brief remarks on upgrading are also presented." /><script xmlns="" type="text/javascript" src="/layout/js/google.js"></script></head><body><div class="article"><div xmlns="" class="titlepage"><div><div><h1 xmlns="http://www.w3.org/1999/xhtml" class="title"><a id="idp60835184"></a>FreeBSD 10.2-RELEASE Release Notes</h1></div><div><div xmlns="http://www.w3.org/1999/xhtml" class="author"><h3 class="author"><span class="orgname">The FreeBSD Project</span></h3></div></div><div><p xmlns="http://www.w3.org/1999/xhtml" class="copyright">Copyright © 2015 The FreeBSD Documentation
Project</p></div><div><div xmlns="http://www.w3.org/1999/xhtml" class="legalnotice"><a id="trademarks"></a><p xmlns="http://www.w3.org/TR/xhtml1/transitional">FreeBSD is a registered trademark of
the FreeBSD Foundation. </p><p xmlns="http://www.w3.org/TR/xhtml1/transitional">IBM, AIX, OS/2,
PowerPC, PS/2, S/390, and ThinkPad are
@ -18,7 +18,7 @@
as trademarks. Where those designations appear in this document,
and the FreeBSD Project was aware of the trademark claim, the
designations have been followed by the <span xmlns="http://www.w3.org/1999/xhtml" class="quote">&#8220;<span class="quote">&#8482;</span>&#8221;</span> or the
<span xmlns="http://www.w3.org/1999/xhtml" class="quote">&#8220;<span class="quote">®</span>&#8221;</span> symbol. </p></div></div><div>Last modified on 2015-07-23 by gjb.</div><div><div xmlns="http://www.w3.org/1999/xhtml" class="abstract"><div class="abstract-title">Abstract</div><p xmlns="http://www.w3.org/TR/xhtml1/transitional">The release notes for FreeBSD 10.2-RELEASE contain
<span xmlns="http://www.w3.org/1999/xhtml" class="quote">&#8220;<span class="quote">®</span>&#8221;</span> symbol. </p></div></div><div>Last modified on 2015-07-26 by gjb.</div><div><div xmlns="http://www.w3.org/1999/xhtml" class="abstract"><div class="abstract-title">Abstract</div><p xmlns="http://www.w3.org/TR/xhtml1/transitional">The release notes for FreeBSD 10.2-RELEASE contain
a summary of the changes made to the FreeBSD base system on the
10.2-STABLE development line. This document lists
applicable security advisories that were issued since the last
@ -149,7 +149,27 @@
updated to version 1.5.3. <a href="http://svn.freebsd.org/viewvc/base?view=revision&amp;revision=285206">[r285206]</a></p><p xmlns="http://www.w3.org/TR/xhtml1/transitional">The <span xmlns="http://www.w3.org/1999/xhtml" class="application">sendmail</span>
utility has been updated to version 8.15.2. <a href="http://svn.freebsd.org/viewvc/base?view=revision&amp;revision=285305">[r285305]</a></p><p xmlns="http://www.w3.org/TR/xhtml1/transitional"><span xmlns="http://www.w3.org/1999/xhtml" class="application">OpenSSL</span> has
been updated to version 1.0.1p. <a href="http://svn.freebsd.org/viewvc/base?view=revision&amp;revision=285330">[r285330]</a></p><p xmlns="http://www.w3.org/TR/xhtml1/transitional">The <span xmlns="http://www.w3.org/1999/xhtml" class="application">ntp</span>
suite has been updated to version 4.2.8p3. <a href="http://svn.freebsd.org/viewvc/base?view=revision&amp;revision=285612">[r285612]</a></p></div><div class="sect2"><div xmlns="" class="titlepage"><div><div><h3 xmlns="http://www.w3.org/1999/xhtml" class="title"><a id="userland-installer"></a>4.4. Installation and Configuration Tools</h3></div></div></div><p xmlns="http://www.w3.org/TR/xhtml1/transitional">  </p></div><div class="sect2"><div xmlns="" class="titlepage"><div><div><h3 xmlns="http://www.w3.org/1999/xhtml" class="title"><a id="userland-rc"></a>4.5. <code class="filename">/etc/rc.d</code>
suite has been updated to version 4.2.8p3. <a href="http://svn.freebsd.org/viewvc/base?view=revision&amp;revision=285612">[r285612]</a></p><p xmlns="http://www.w3.org/TR/xhtml1/transitional">The
<a xmlns="http://www.w3.org/1999/xhtml" class="citerefentry" href="http://www.FreeBSD.org/cgi/man.cgi?query=ssh&amp;sektion=1"><span class="citerefentry"><span class="refentrytitle">ssh</span>(1)</span></a> utility has been updated to re-implement hostname
canonicalization before locating the host in
<code xmlns="http://www.w3.org/1999/xhtml" class="filename">known_hosts</code>. <a href="http://svn.freebsd.org/viewvc/base?view=revision&amp;revision=285750">[r285750]</a><span class="contrib">
(Sponsored by
Dell, Inc.)</span></p></div><div class="sect2"><div xmlns="" class="titlepage"><div><div><h3 xmlns="http://www.w3.org/1999/xhtml" class="title"><a id="userland-installer"></a>4.4. Installation and Configuration Tools</h3></div></div></div><p xmlns="http://www.w3.org/TR/xhtml1/transitional">Support for detecting and implementing
a workaround for various laptops and motherboards that do not
boot properly from <acronym xmlns="http://www.w3.org/1999/xhtml" class="acronym">GPT</acronym>-partitioned disks
has been added to <a xmlns="http://www.w3.org/1999/xhtml" class="citerefentry" href="http://www.FreeBSD.org/cgi/man.cgi?query=bsdinstall&amp;sektion=8"><span class="citerefentry"><span class="refentrytitle">bsdinstall</span>(8)</span></a>. Additionally, the
<code xmlns="http://www.w3.org/1999/xhtml" class="literal">active</code> flag will be set on the partition
when needed. <a href="http://svn.freebsd.org/viewvc/base?view=revision&amp;revision=285769">[r285769]</a><span class="contrib">
(Sponsored by
ScaleEngine, Inc.)</span></p><p xmlns="http://www.w3.org/TR/xhtml1/transitional">Support for detecting and implementing
aligning partitions on 1Mb boundaries has been added to
<a xmlns="http://www.w3.org/1999/xhtml" class="citerefentry" href="http://www.FreeBSD.org/cgi/man.cgi?query=bsdinstall&amp;sektion=8"><span class="citerefentry"><span class="refentrytitle">bsdinstall</span>(8)</span></a>. <a href="http://svn.freebsd.org/viewvc/base?view=revision&amp;revision=285721">[r285721]</a><span class="contrib">
(Sponsored by
ScaleEngine, Inc.)</span></p><p xmlns="http://www.w3.org/TR/xhtml1/transitional">Support for selecting the partitioning
scheme when installing on the <acronym xmlns="http://www.w3.org/1999/xhtml" class="acronym">UFS</acronym>
filesystem has been added to <a xmlns="http://www.w3.org/1999/xhtml" class="citerefentry" href="http://www.FreeBSD.org/cgi/man.cgi?query=bsdinstall&amp;sektion=8"><span class="citerefentry"><span class="refentrytitle">bsdinstall</span>(8)</span></a>. <a href="http://svn.freebsd.org/viewvc/base?view=revision&amp;revision=285769">[r285769]</a><span class="contrib">
(Sponsored by
ScaleEngine, Inc.)</span></p></div><div class="sect2"><div xmlns="" class="titlepage"><div><div><h3 xmlns="http://www.w3.org/1999/xhtml" class="title"><a id="userland-rc"></a>4.5. <code class="filename">/etc/rc.d</code>
Scripts</h3></div></div></div><p xmlns="http://www.w3.org/TR/xhtml1/transitional">A new <a xmlns="http://www.w3.org/1999/xhtml" class="citerefentry" href="http://www.FreeBSD.org/cgi/man.cgi?query=rc&amp;sektion=8"><span class="citerefentry"><span class="refentrytitle">rc</span>(8)</span></a> script,
<code xmlns="http://www.w3.org/1999/xhtml" class="filename">growfs</code>, has been added, which will resize
the root filesystem on boot if <code xmlns="http://www.w3.org/1999/xhtml" class="filename">/firstboot</code>
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been fixed. <a href="http://svn.freebsd.org/viewvc/base?view=revision&amp;revision=284018">[r284018]</a></p></div><div class="sect2"><div xmlns="" class="titlepage"><div><div><h3 xmlns="http://www.w3.org/1999/xhtml" class="title"><a id="kernel-config"></a>5.2. Kernel Configuration</h3></div></div></div><p xmlns="http://www.w3.org/TR/xhtml1/transitional">The
<code xmlns="http://www.w3.org/1999/xhtml" class="literal">PAE_TABLES</code> kernel configuration option has
been added for FreeBSD/i386, which instructs <a xmlns="http://www.w3.org/1999/xhtml" class="citerefentry" href="http://www.FreeBSD.org/cgi/man.cgi?query=pmap&amp;sektion=9"><span class="citerefentry"><span class="refentrytitle">pmap</span>(9)</span></a>
to use <acronym xmlns="http://www.w3.org/1999/xhtml" class="acronym">PAE</acronym> format for page tables with
32-bit physical addresses. Unlike the <code xmlns="http://www.w3.org/1999/xhtml" class="literal">PAE</code>
option, <code xmlns="http://www.w3.org/1999/xhtml" class="literal">PAE_TABLES</code> preserves kernel binary
interface (<acronym xmlns="http://www.w3.org/1999/xhtml" class="acronym">KBI</acronym>) compatibility with
non-<code xmlns="http://www.w3.org/1999/xhtml" class="literal">PAE</code> kernels, allowing
non-<code xmlns="http://www.w3.org/1999/xhtml" class="literal">PAE</code> kernel modules and drivers to work
with a <code xmlns="http://www.w3.org/1999/xhtml" class="literal">PAE_TABLES</code>-enabled kernel.
to use <acronym xmlns="http://www.w3.org/1999/xhtml" class="acronym">PAE</acronym> format for page tables while
maintaining a 32-bit physical address size elsewhere in the
kernel. The use of this option can enhance application-level
security by enabling the creation of <span xmlns="http://www.w3.org/1999/xhtml" class="quote">&#8220;<span class="quote">no execute</span>&#8221;</span>
mappings on modern i386 processors. Unlike the
<code xmlns="http://www.w3.org/1999/xhtml" class="literal">PAE</code> option, <code xmlns="http://www.w3.org/1999/xhtml" class="literal">PAE_TABLES</code>
preserves kernel binary interface (<acronym xmlns="http://www.w3.org/1999/xhtml" class="acronym">KBI</acronym>)
compatibility with non-<code xmlns="http://www.w3.org/1999/xhtml" class="literal">PAE</code> kernels,
allowing non-<code xmlns="http://www.w3.org/1999/xhtml" class="literal">PAE</code> kernel modules and drivers
to work with a <code xmlns="http://www.w3.org/1999/xhtml" class="literal">PAE_TABLES</code>-enabled kernel.
Additionally, system limits are tuned for 4GB maximum
<acronym xmlns="http://www.w3.org/1999/xhtml" class="acronym">RAM</acronym>, avoiding kernel virtual address space
(<acronym xmlns="http://www.w3.org/1999/xhtml" class="acronym">KVA</acronym>) exhaustion. <a href="http://svn.freebsd.org/viewvc/base?view=revision&amp;revision=282065">[r282065]</a><span class="contrib">
@ -382,7 +405,18 @@
default, if the callin port is an active console port. <a href="http://svn.freebsd.org/viewvc/base?view=revision&amp;revision=284775">[r284775]</a><span class="contrib">
(Sponsored by
The FreeBSD Foundation)</span></p></div><div class="sect2"><div xmlns="" class="titlepage"><div><div><h3 xmlns="http://www.w3.org/1999/xhtml" class="title"><a id="boot-menu"></a>9.2. Boot Menu Changes</h3></div></div></div><p xmlns="http://www.w3.org/TR/xhtml1/transitional">  </p></div></div><div class="sect1"><div xmlns="" class="titlepage"><div><div><h2 xmlns="http://www.w3.org/1999/xhtml" class="title" style="clear: both"><a id="network"></a>10. Networking</h2></div></div></div><p xmlns="http://www.w3.org/TR/xhtml1/transitional">This section describes changes that affect networking in
FreeBSD. </p><div class="sect2"><div xmlns="" class="titlepage"><div><div><h3 xmlns="http://www.w3.org/1999/xhtml" class="title"><a id="network-protocols"></a>10.1. Network Procols</h3></div></div></div><p xmlns="http://www.w3.org/TR/xhtml1/transitional">  </p></div></div><div class="sect1"><div xmlns="" class="titlepage"><div><div><h2 xmlns="http://www.w3.org/1999/xhtml" class="title" style="clear: both"><a id="ports"></a>11. Ports Collection and Package Infrastructure</h2></div></div></div><p xmlns="http://www.w3.org/TR/xhtml1/transitional">This section covers changes to the FreeBSD Ports
FreeBSD. </p><div class="sect2"><div xmlns="" class="titlepage"><div><div><h3 xmlns="http://www.w3.org/1999/xhtml" class="title"><a id="network-protocols"></a>10.1. Network Procols</h3></div></div></div><p xmlns="http://www.w3.org/TR/xhtml1/transitional">Support for <acronym xmlns="http://www.w3.org/1999/xhtml" class="acronym">PLPMTUD</acronym>
blackhole detection (<acronym xmlns="http://www.w3.org/1999/xhtml" class="acronym">RFC</acronym> 4821) has been
added to the <a xmlns="http://www.w3.org/1999/xhtml" class="citerefentry" href="http://www.FreeBSD.org/cgi/man.cgi?query=tcp&amp;sektion=4"><span class="citerefentry"><span class="refentrytitle">tcp</span>(4)</span></a> stack, disabled by default. New
control tunables have been added: <a href="http://svn.freebsd.org/viewvc/base?view=revision&amp;revision=273838">[r273838]</a><span class="contrib">
(Sponsored by
Limelight Networks)</span></p><div class="informaltable"><table border="0"><colgroup><col /><col /></colgroup><thead><tr><th>Tunable</th><th>Description</th></tr></thead><tbody><tr><td><code class="literal">net.inet.tcp.pmtud_blackhole_detection</code></td><td>Enables or disables <acronym class="acronym">PLPMTUD</acronym>
blackhole detection</td></tr><tr><td><code class="literal">net.inet.tcp.pmtud_blackhole_mss</code></td><td><acronym class="acronym">MSS</acronym> to try for IPv4</td></tr><tr><td><code class="literal">net.inet.tcp.v6pmtud_blackhole_mss</code></td><td><acronym class="acronym">MSS to try for IPv6</acronym></td></tr></tbody></table></div><p xmlns="http://www.w3.org/TR/xhtml1/transitional">New monitoring <a xmlns="http://www.w3.org/1999/xhtml" class="citerefentry" href="http://www.FreeBSD.org/cgi/man.cgi?query=sysctl&amp;sektion=8"><span class="citerefentry"><span class="refentrytitle">sysctl</span>(8)</span></a>s haven been added: </p><div class="informaltable"><table border="0"><colgroup><col /><col /></colgroup><thead><tr><th>Tunable</th><th>Description</th></tr></thead><tbody><tr><td><code class="literal">net.inet.tcp.pmtud_blackhole_activated</code></td><td>Number of times the code was activated to attempt
downshifting the <acronym class="acronym">MSS</acronym></td></tr><tr><td><code class="literal">net.inet.tcp.pmtud_blackhole_min_activated</code></td><td>Number of times the blackhole
<acronym class="acronym">MSS</acronym> was used in an attempt to
downshift</td></tr><tr><td><code class="literal">net.inet.tcp.pmtud_blackhole_failed</code></td><td>Number of times that the blackhole failed to
connect after downshifting the
<acronym class="acronym">MSS</acronym></td></tr></tbody></table></div></div></div><div class="sect1"><div xmlns="" class="titlepage"><div><div><h2 xmlns="http://www.w3.org/1999/xhtml" class="title" style="clear: both"><a id="ports"></a>11. Ports Collection and Package Infrastructure</h2></div></div></div><p xmlns="http://www.w3.org/TR/xhtml1/transitional">This section covers changes to the FreeBSD Ports
Collection, package infrastructure, and package maintenance and
installation tools. </p><div class="sect2"><div xmlns="" class="titlepage"><div><div><h3 xmlns="http://www.w3.org/1999/xhtml" class="title"><a id="ports-infrastructure"></a>11.1. Infrastructure Changes</h3></div></div></div><p xmlns="http://www.w3.org/TR/xhtml1/transitional">  </p></div><div class="sect2"><div xmlns="" class="titlepage"><div><div><h3 xmlns="http://www.w3.org/1999/xhtml" class="title"><a id="ports-packages"></a>11.2. Packaging Changes</h3></div></div></div><p xmlns="http://www.w3.org/TR/xhtml1/transitional">  </p></div></div><div class="sect1"><div xmlns="" class="titlepage"><div><div><h2 xmlns="http://www.w3.org/1999/xhtml" class="title" style="clear: both"><a id="doc"></a>12. Documentation</h2></div></div></div><p xmlns="http://www.w3.org/TR/xhtml1/transitional">This section covers changes to the FreeBSD Documentation
Project sources and toolchain. </p><div class="sect2"><div xmlns="" class="titlepage"><div><div><h3 xmlns="http://www.w3.org/1999/xhtml" class="title"><a id="doc-sources"></a>12.1. Documentation Source Changes</h3></div></div></div><p xmlns="http://www.w3.org/TR/xhtml1/transitional">  </p></div><div class="sect2"><div xmlns="" class="titlepage"><div><div><h3 xmlns="http://www.w3.org/1999/xhtml" class="title"><a id="doc-toolchain"></a>12.2. Documentation Toolchain Changes</h3></div></div></div><p xmlns="http://www.w3.org/TR/xhtml1/transitional">  </p></div></div><div class="sect1"><div xmlns="" class="titlepage"><div><div><h2 xmlns="http://www.w3.org/1999/xhtml" class="title" style="clear: both"><a id="releng"></a>13. Release Engineering and Integration</h2></div></div></div><p xmlns="http://www.w3.org/TR/xhtml1/transitional">This section convers changes that are specific to the