article.xml revision 273082
1<?xml version="1.0" encoding="iso-8859-1"?> 2<!DOCTYPE article PUBLIC "-//FreeBSD//DTD DocBook XML V5.0-Based Extension//EN" 3 "http://www.FreeBSD.org/XML/share/xml/freebsd50.dtd" [ 4<!ENTITY % release PUBLIC "-//FreeBSD//ENTITIES Release Specification//EN" 5 "http://www.FreeBSD.org/release/XML/release.ent"> 6%release; 7]> 8 9<article xmlns="http://docbook.org/ns/docbook" 10 xmlns:xlink="http://www.w3.org/1999/xlink" version="5.0"> 11 12 <info> 13 <title>&os; &release.current; Errata </title> 14 15 <author><orgname>The &os; Project</orgname></author> 16 17 <pubdate>$FreeBSD: releng/10.1/release/doc/en_US.ISO8859-1/errata/article.xml 273082 2014-10-14 12:40:52Z gjb $</pubdate> 18 19 <copyright> 20 <year>2014</year> 21 22 <holder role="mailto:doc@FreeBSD.org">The &os; Documentation 23 Project</holder> 24 </copyright> 25 26 <legalnotice xml:id="trademarks" role="trademarks"> 27 &tm-attrib.freebsd; 28 &tm-attrib.intel; 29 &tm-attrib.sparc; 30 &tm-attrib.general; 31 </legalnotice> 32 33 <abstract> 34 <para>This document lists errata items for &os; &release.current;, 35 containing significant information discovered after the 36 release or too late in the release cycle to be otherwise 37 included in the release documentation. This information 38 includes security advisories, as well as news relating to the 39 software or documentation that could affect its operation or 40 usability. An up-to-date version of this document should 41 always be consulted before installing this version of 42 &os;.</para> 43 44 <para>This errata document for &os; &release.current; will be 45 maintained until the release of &os; &release.next;.</para> 46 </abstract> 47 </info> 48 49 <sect1 xml:id="intro"> 50 <title>Introduction</title> 51 52 <para>This errata document contains <quote>late-breaking 53 news</quote> about &os; &release.current; before installing this 54 version, it is important to consult this document to learn about 55 any post-release discoveries or problems that may already have 56 been found and fixed.</para> 57 58 <para>Any version of this errata document actually distributed 59 with the release (for example, on a CDROM distribution) will be 60 out of date by definition, but other copies are kept updated on 61 the Internet and should be consulted as the <quote>current 62 errata</quote> for this release. These other copies of the 63 errata are located at <link 64 xlink:href="http://www.FreeBSD.org/releases/" />, plus any 65 sites which keep up-to-date mirrors of this location.</para> 66 67 <para>Source and binary snapshots of &os; &release.branch; also 68 contain up-to-date copies of this document (as of the time of 69 the snapshot).</para> 70 71 <para>For a list of all &os; CERT security advisories, see <link 72 xlink:href="http://www.FreeBSD.org/security/"/> or <link 73 xlink:href="ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/"/>.</para> 74 </sect1> 75 76 <sect1 xml:id="security"> 77 <title>Security Advisories</title> 78 79 <informaltable frame="none" pgwide="0"> 80 <tgroup cols="3"> 81 <colspec colwidth="1*" /> 82 <colspec colwidth="1*" /> 83 <colspec colwidth="3*" /> 84 <thead> 85 <row> 86 <entry>Advisory</entry> 87 <entry>Date</entry> 88 <entry>Topic</entry> 89 </row> 90 </thead> 91 92 <tbody> 93 <row> 94 <entry>No advisories.</entry> 95 <entry> </entry> 96 <entry> </entry> 97 </row> 98 </tbody> 99 </tgroup> 100 </informaltable> 101 </sect1> 102 103 <sect1 xml:id="open-issues"> 104 <title>Open Issues</title> 105 106 <itemizedlist> 107 <listitem> 108 <para>&os;/&arch.i386; &release.current; running as a guest 109 operating system on <application>VirtualBox</application> 110 can have a problem with disk I/O access. It depends on some 111 specific hardware configuration and does not depend on a 112 specific version of <application>VirtualBox</application> or 113 host operating system.</para> 114 115 <para>It causes various errors and makes &os; quite unstable. 116 Although the cause is still unclear, disabling unmapped I/O 117 works as a workaround. To disable it, choose 118 <literal>Escape to loader prompt</literal> in the boot menu 119 and enter the following lines from &man.loader.8; prompt, 120 after an <literal>OK</literal>:</para> 121 122 <screen>set vfs.unmapped_buf_allowed=0 123boot</screen> 124 125 <para>Note that the following line has to be added to 126 <filename>/boot/loader.conf</filename> after a boot. It 127 disables unmapped I/O at every boot:</para> 128 129 <programlisting>vfs.unmapped_buf_allowed=0</programlisting> 130 131 <para>[2014-04-03 update] It has been reported that 132 instability may be present on virtual machines running 133 on other hypervisors, such as Xen or KVM.</para> 134 </listitem> 135 </itemizedlist> 136 </sect1> 137 138 <sect1 xml:id="late-news"> 139 <title>Late-Breaking News</title> 140 141 <para>No news.</para> 142 </sect1> 143</article> 144