Date: Sun, 26 Apr 2009 14:03:53 +0000 (UTC) From: Hiroki Sato <hrs@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-releng@freebsd.org Subject: svn commit: r191521 - releng/7.2/release/doc/en_US.ISO8859-1/relnotes Message-ID: <200904261403.n3QE3rpI085519@svn.freebsd.org>
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Author: hrs Date: Sun Apr 26 14:03:52 2009 New Revision: 191521 URL: http://svn.freebsd.org/changeset/base/191521 Log: Update release notes: FREEBSD32 syscall translation layer now supports addition/removal of syscall from kernel module, VFS_AIO syscalls added to FREEBSD32, ktr(4) new tracepoint for callout added, cpufreq(4) hw.est.msr_info added, kern.timecounter.invariant_tsc for i386 and amd64 added, vfs.lookup_shared improvement and removal of LOOKUP_SHARED option, and netstat(1) -ss for icmp6 section fixed. Approved by: re (implicit) Modified: releng/7.2/release/doc/en_US.ISO8859-1/relnotes/article.sgml Modified: releng/7.2/release/doc/en_US.ISO8859-1/relnotes/article.sgml ============================================================================== --- releng/7.2/release/doc/en_US.ISO8859-1/relnotes/article.sgml Sun Apr 26 10:12:20 2009 (r191520) +++ releng/7.2/release/doc/en_US.ISO8859-1/relnotes/article.sgml Sun Apr 26 14:03:52 2009 (r191521) @@ -216,6 +216,18 @@ to 3.6GB. Note that the ceiling as a fraction of the kernel map size rather than an absolute quantity.</para> + <para>The &man.kld.4; now supports installing 32-bit system + call to the &os; system call translation layer from kernel + modules.</para> + + <para>The &os; 32-bit system call translation layer now + supports installing 32-bit system calls for + <literal>VFS_AIO</literal>.</para> + + <para>The &man.ktr.4; now supports a new KTR tracepoint in the + <literal>KTR_CALLOUT</literal> class to note when a callout + routine finishes executing.</para> + <sect3 id="boot"> <title>Boot Loader Changes</title> @@ -248,6 +260,20 @@ information, read/write machine specific registers (MSR) and perform CPU firmware updates.</para> + <para>The &man.cpufreq.4; driver now supports a + <varname>hw.est.msr_info</varname> loader tunable. When + this set to <literal>1</literal>, it attempts to build a + simple list containing just the high and low frequencies if + it cannot obtain a frequency list from either ACPI or the + static tables. This is disabled by default.</para> + + <para arch="amd64,i386">CPU frequency change notifiers are now + disabled when the TSC is P-state invariant. Also, a new + loader tunable + <varname>kern.timecounter.invariant_tsc</varname> has been + added to force this behavior by setting it to + non-zero.</para> + <sect4 id="mm"> <title>Multimedia Support</title> @@ -337,7 +363,13 @@ <sect3 id="fs"> <title>File Systems</title> - <para></para> + <para>The shared vnode locking for pathname lookups in + &man.VFS.9; subsystem has been improved. This is disabled + by default. Setting a sysctl variable + <varname>vfs.lookup_shared</varname> to <literal>1</literal> + enables it for better performance. Note that the + <literal>LOOKUP_SHARED</literal> equivalent to the sysctl + variable kernel option has been removed.</para> </sect3> </sect2> @@ -373,6 +405,10 @@ <screen>&prompt.user; netstat -m -N foo</screen> + <para>A bug in the &man.netstat.1; utility has been fixed. The + <option>-ss</option> now works in the icmp6 section as + expected.</para> + <para>The &man.powerd.8; program has been improved. Changes include reasonable CPU load estimation on SMP systems and a new mode named as <literal>hiadaptive</literal> for AC-powered
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