Author: hrs
Date: Wed Apr 29 15:22:58 2009
New Revision: 191667
URL: http://svn.freebsd.org/changeset/base/191667
Log:
- Update entries for increased KVA on amd64 and superpages on
amd64/i386[1]
- BTX loader improved[2]
- Move sysctl node MPSAFE flag to the kernel section[3]
- u3g(4) added[4]
- Various grammer fixes[5]
- MAKE_JOBS_SAFE added in bsd.port.mk.
Suggested by: ivoras[1], gavin[2], kib[3], edwin[4], and schweikh[5].
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 Wed Apr
29 11:31:23 2009 (r191666)
+++ releng/7.2/release/doc/en_US.ISO8859-1/relnotes/article.sgml Wed Apr
29 15:22:58 2009 (r191667)
@@ -215,9 +215,13 @@
process execution.</para>
<para arch="amd64">The &os; kernel virtual address space has
- been increased to 6GB and the ceiling on the kmem map size
- to 3.6GB. Note that the ceiling as a fraction of the kernel
- map size rather than an absolute quantity.</para>
+ been increased to 6GB. This allows subsystems to use larger
+ virtual memory space than before. For example, &man.zfs.8;
+ adaptive replacement cache (ARC) requires large kernel memory
+ space to cache file system data, so it benefits from the
+ increased address space. Note that the ceiling on the kernel
+ map size is now 60% of the size rather than an absolute
+ quantity.</para>
<para>The &man.jail.8; subsystem has been updated. Changes
include:</para>
@@ -231,12 +235,13 @@
</listitem>
<listitem>
- <para>SCTP (&man.sctp.4;) with IPv6 in jails has been
supported.</para>
+ <para>SCTP (&man.sctp.4;) with IPv6 in jails has been
+ implemented.</para>
</listitem>
<listitem>
<para>Specific CPU binding by using &man.cpuset.1; has been
- supported. Note that the current implementation allows
+ implemented. Note that the current implementation allows
the superuser inside of the jail to change the CPU
bindings specified. This behavior will be fixed in the
next release.</para>
@@ -267,7 +272,7 @@
</itemizedlist>
<para>The &man.kld.4; now supports installing 32-bit system
- call to the &os; system call translation layer from kernel
+ calls to the &os; system call translation layer from kernel
modules.</para>
<para>The &man.ktr.4; now supports a new KTR tracepoint in the
@@ -280,7 +285,10 @@
makes it possible to use more than 2 GB shared memory segments
on 64-bit architectures. Please note the new BUGS section in
&man.shmctl.2; and <filename>/usr/src/UPDATING</filename> for
- limitations of this temporal solution.</para>
+ limitations of this temporary solution.</para>
+
+ <para>A &man.sysctl.3; leaf node has a flag to tag itself as
+ MPSAFE now.</para>
<para>The &os; 32-bit system call translation layer now
supports installing 32-bit system calls for
@@ -293,7 +301,10 @@
modern CPUs. This provides possible memory savings for
applications that share large amounts of memory between the
address spaces and performance improvements due to fewer TLB
- misses.</para>
+ misses. This is disabled by default and can be enabled by
+ setting a loader tunable
+ <varname>vm.pmap.pg_ps_enabled</varname> to
+ <literal>1</literal>.</para>
<sect3 id="boot">
<title>Boot Loader Changes</title>
@@ -302,6 +313,10 @@
certain versions of &windows; put into the MBR and invoking
PXE by pressing F6 key on some supported BIOSes.</para>
+ <para arch="i386">The &man.boot.8; BTX loader has been
+ improved. This fixes several boot issues on recent machines
+ reported for 7.1-RELEASE and before.</para>
+
<para>The &man.loader.8; is now able to obtain DHCP options
from network boot via &man.kenv.2; variables.</para>
@@ -364,14 +379,19 @@
Fireplane/Safari to PCI 2.1 and Tomatillo JBus to PCI 2.2
bridges has been added.</para>
+ <para>The &man.u3g.4; driver for USB based 3G cards and
+ dongles including Vodafone Mobile Connect Card 3G, Qualcomm
+ CDMA MSM, Huawei E220, Novatel U740, Sierra MC875U, and so
+ on has been added. This provides support for the multiple
+ USB-to-serial interfaces exposed by many 3G USB/PC Card
+ modems, and the device is accessed through the &man.ucom.4;
+ driver which makes it behave like a &man.tty.4;.</para>
+
<para>The &man.sched.ule.4; scheduler now supports a loader
tunable <varname>machdep.hyperthreading_enabled</varname> as
the &man.sched.4bsd.4; does. Note that it cannot be
modified at run-time.</para>
- <para>A &man.sysctl.3; leaf node has a flag to tag itself as
- MPSAFE now.</para>
-
<sect4 id="mm">
<title>Multimedia Support</title>
@@ -771,20 +791,20 @@
<option>-D</option> flag for damaged recovery mode, which will
enable certain aggressive operations that can make
&man.fsck.8; to survive with file systems that has very
- serious data damage. This is an useful last resort when on
+ serious data damage. This is a useful last resort when on
disk data damage is very serious and causes &man.fsck.8; to
crash otherwise.</para>
<para>The &man.getaddrinfo.3; function now supports SCTP.</para>
- <para>A bug in the &man.ipfw.8; utility which displays extra
- messages for a NAT rule even when a <option>-q</option> flag
- is specified.</para>
+ <para>A bug was fixed in the &man.ipfw.8; utility which displays
+ extra messages for a NAT rule even when a <option>-q</option>
+ flag is specified.</para>
<para>The &man.ln.1; utility now supports a <option>-w</option>
flag to check if the source file actually exists. When the
- flag is specified and the file does not exist, the &man.ln.1;
- will put a warning message.</para>
+ flag is specified and the file does not exist, &man.ln.1; will
+ issue a warning message.</para>
<para>The &man.make.1; utility now supports a
<option>-p</option> flag to print the input graph only, not
@@ -799,7 +819,7 @@
<option>-q</option> flag when a <option>-j</option> option is
specified.</para>
- <para>The &man.make.1; utility now supports
+ <para>The &man.make.1; utility now supports the
<varname>.MAKE.JOB.PREFIX</varname> variable. If
<option>-j</option> and <option>-v</option> are specified, it
outputs for each target is prefixed with a token <literal>---
@@ -836,7 +856,7 @@
<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
+ <option>-ss</option> option now works in the icmp6 section as
expected.</para>
<para>The &man.pciconf.8; utility now supports a
@@ -889,8 +909,20 @@
<sect2 id="ports">
<title>Ports/Packages Collection Infrastructure</title>
- <para>A bug in the &man.pkg.create.1; which prevents the
+ <para>A bug in &man.pkg.create.1; which prevents the
<option>-n</option> flag from working has been fixed.</para>
+
+ <para>The &os; Ports Collection now supports multiple
+ &man.make.1; jobs in some supported ports. This is
+ automatically enabled when a port is marked as
+ <varname>MAKE_JOBS_SAFE</varname> and improves CPU utilization
+ at the build stage by passing an option
+ <option>-j<replaceable>X</replaceable></option> to the top
+ level <filename>Makefile</filename> from the vendor. The
+ number <replaceable>X</replaceable> is set to the number of
+ CPUs by default, and can be set by users via a &man.make.1;
+ variable <varname>MAKE_JOBS_NUMBER</varname>. For more
+ details, see <filename>ports/Mk/bsd.port.mk</filename>.</para>
</sect2>
<sect2 id="releng">
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